Some Useful Information Concerning the results:
The Conversion factors for the primordial nuclides are given by: 1 Bq 238U/kg = 81 ppb U (81 x 10-9 gU/g) The 238U decay chain gammas used are: 234Th: 63.29 and 92.59 keV
226Ra: 186.1 keV
214Pb: 295.21 and 351.92 keV
214Bi: 609.31, 1120.29, 1764.49 and 2204.21 keV
The relationships are valid for any daughters in the 238U, 235U or 232Th chain only if the chain is in equilibrium. 1 Bq 232Th/kg = 246 ppb Th (246 x 10-9 gTh/g) The 232Th decay chain gammas used are: 212Pb: 238.63 and 300.09 keV
208Tl: 277.371, 583.19, 860.557 and 2614.53 keV,
228Ac: 209.253, 338.320, 463,004, 911.21, 964.766 and 968.971 keV
1 Bq 40K/kg = 32300 ppb K (32300 x 10-6 gK/g) The 40K decay chain gamma used is: 40K: 1460.83 keV
1 Bq 235U/kg = 1.76 ppm U (1.76 x 10-6 gU/g) The 235U decay chain gammas used are: 235U: 143.76, 163.33 and 205.31 keV

Background Measurements:




























If a measurement in the signal region is below the sideband regions then the 90% confidence limit is calculated.
Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
Background CW1

38.281 121121
121123
121130
121229		 Nov 21, 2012 (mBq) 0.153 +/- 0.053 0.100 +- 0.071 0.345 +- 0.065 0.216 +/- 0.097 0.073 +/- 0.278 <0.269

0.151 +/- 0.276


Completely Empty Detector


Dec 31, 2012


















1.98
13.13


Background CW2

23.184 130328
130330
130406
130419		 Mar 28, 2013 (mBq) 0.225 +/- 0.063 0.020 +- 0.089 0.227 +- 0.066 0.308 +/- 0.098 0.759 +/- 0.378 0.700 +/- 0.700 0.195 +/- 0.332


Completely Empty Detector



Apr 22, 2013


















1.77
9.07


Background CW3

10.681 130722
130727
130730
130802		 Jul 22, 2013 (mBq) 0.187 +/- 0.078 0.058 +- 0.196 0.116 +- 0.038 0.218 +/- 0.099 <0.518

<1.508

<0.172


Completely Empty Detector



Aug 13, 2013


















0.00
33.80


Background CW4

14.158 130929
131111
13111101		 Oct 29, 2013 (mBq) 0.080 +- 0.078 0.100 +- 0.089 0.065 +- 0.032 0.028 +- 0.099 <0.201

<1.195

<0.391


Completely Empty Detector



Nov 13, 2013


















0
6.54


Background CW5

6.721 140814
 Aug 18, 2014 (mBq) 0.080 +/- 0.083 <0.206

0.012 +- 0.086 <0.250

0.186 +- 0.759 <3.159

1.500 +- 0.700
Completely Empty Detector



Aug 25, 2014


















3.06
2.04


Background CW6

44.129 141215
150107
150116
15011601		 Dec 15, 2014 (mBq) 0.178 +- 0.039 0.100 +- 0.059 0.051 +- 0.018 0.164 +- 0.054 0.230 +- 0.245 <0.23

0.921 +- 0.210
Completely Empty Detector



Jan 29, 2015


















20.88
22.68


Background CW7

12.386 150224
150227
15022701
050301
150308
150309		 Feb 24, 2015 (mBq) 0.132 +- 0.070 <0.100

0.012 +- 0.033 0.379 +- 0.099 <0.364

<2.19

0.65 +- 0.37
Completely Empty Detector


Mar 10, 2015


















4.75
7.30


Background CW8

25.147 151218
151219
15121901
151224
151231
15123101
160101		 Dec 18, 2015 (mBq) 0.209 +- 0.055 <0.011

<0.021

0.294 +- 0.078 0.838 +- 0.361 <0.735

0.62 +- 0.29
Completely Empty Detector



Jan 13, 2016


















7.37
11.89


Background CW9

25.098 160608
160819
16062801
 Jun 8, 2016 (mBq) 0.162 +- 0.051 0.011 +- 0.073 <0.008

0.314 +- 0.082 <0.280

0.69 +- 0.84 0.74 +- 0.25
Completely Empty Detector



Jul 7, 2016


















11.84
16.00


Background CW10

52.569 161202
161213
161215
161229
170111
 Dec 2, 2016 (mBq) 0.123 +- 0.035 0.030 +- 0.051 0.044 +- 0.015 0.211 +- 0.054 0.092 +- 0.220 <0.187

0.47 +- 0.18
Completely Empty Detector


Jan 25, 2017


















14.51
30.86








Additional Backgrounds:
7Be:

54Mn:
























(mBq) <0.198

2.50 +- 2.64

















Background CW11

20.398 180925
180930
181005
181008
 Sep 25, 2018 (mBq) 0.172 +- 0.058 0.097 +- 0.092 0.035 +- 0.025 0.188 +- 0.082 0.189 +- 0.331 <1.33

1.38 +- 0.43
Completely Empty Detector


Oct 17, 2018






























Additional Backgrounds:
7Be:

54Mn:
























(mBq) 1.34 +- 1.73 <4.61



















Background CW12

10.726 181102 Nov 2, 2018 (mBq) 0.077 +- 0.080 0.241 +- 0.126 <0.022

0.12 +- 0.11 0.71 +- 0.56 <1.72

0.84 +- 0.56
Completely Empty Detector



Nov 13, 2018






























Additional Backgrounds:
7Be:

54Mn:
























(mBq) <0.34

<12.86



















Background CW13

53.002 200324
200430		 Mar 24, 2020 (mBq) 1.105 +- 0.145 0.128 +- 0.075 0.024 +- 0.009 0.346 +- 0.067 0.46 +- 0.19 <0.57

0.42 +- 0.20
Completely Empty Detector



May 19, 2020






























Additional Backgrounds:
7Be:

54Mn:
























(mBq) 1.63 +- 1.08 0.00 +- 0.67

















Background CW14

40.956 200811
20081101		 Aug 11, 2020 (mBq) 0.168 +- 0.104 0.136 +- 0.749 <0.011

0.208 +- 0.067 0.19 +- 0.18 <0.87

0.44 +- 0.20
Completely Empty Detector



Sep 2, 2020






























Additional Backgrounds:
7Be:

54Mn:

60Co




















(mBq) <0.75

<1.22

1.07 +- 2.15














Combined Background Combined Backgrounds of runs CW1, CW2, CW3, CW4, CW5, CW6, CW7, CW8, CW9, CW10, CW11 & CW12
283.566

(mBq) 0.230 +- 0.040 0.044 +- 0.027 0.023 +- 0.008 0.75 +- 0.22 0.25 +- 0.11 <0.024

0.221 +- 0.072


Completely Empty Detector

































Additional Backgrounds:
7Be:

54Mn:
























(mBq) <0.54 .
0.79 +- 0.97

















Background CW15 This is the first background run with the Fast Discriminator set to Low Energy N/A 33.032 210322
210405		 Mar 22, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Completely Empty Detector


Apr 26, 2021 (mBq) 0.259 +- 0.031 0.515 +- 0.159 0.0074 +- 0.0057 0.204 +- 0.029 4.16 +- 1.12 0.043 +- 0.028 0.225 +- 0.063

RT: 18.4 uSec
FT: 1.2 uSec
Pole Zero: 2048

































Results: 210Pb:
7Be:

54Mn

228Ac:
















(Mbq) <1.01

<0.17

0.031 +- 0.036 0.295 +- 0.080










































Background CW16 This is the second background run with the Fast Discriminator set to Low Energy N/A 40.479 210729
21080501
210812
21081201		 Jul 29, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Completely Empty Detector

210823
210901
21090101		 Sep 10, 2021 (mBq) 0.022 +- 0.022 1.634 +- 0.249 <0.0046

0.050 +- 0.022 0.80 +- 1.44 0.033 +- 0.025 0.094 +- 0.058

RT: 18.4 uSec
FT: 1.2 uSec
Pole Zero: 2048

































Results: 210Pb:
7Be:

54Mn

228Ac:
















(Mbq) <2.21

<0.30

<0.032

0.097 +- 0.065










































Background CW17 This is the third background run with the Fast Discriminator set to Low Energy N/A 20.798 220114 Jan 14, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Completely Empty Detector


Feb 4, 2022 (mBq) 0.114 +- 0.033 <0.37

0.0124 +- 0.0075 0.119 +- 0.033 3.89 +- 1.50 <0.068

0.206 +- 0.077

RT: 18.4 uSec
FT: 1.2 uSec
Pole Zero: 2048

































Results: 210Pb:
7Be:

54Mn

228Ac:
















(Mbq) <1.31

0.06 +- 0.17 0.066 +- 0.047 0.417 +- 0.093










































Background CW18 This is the forth background run with the Fast Discriminator set to Low Energy N/A 103.809 220805
220807
220809
220811
220813
Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Completely Empty Detector

220815
22081501
(mBq) 0.123 +- 0.016 0.243 +- 0.079 0.0044 +- 0.0034 0.195 +- 0.017 7.56 +- 0.92 <0.023

0.133 +- 0.030

RT: 18.4 uSec
FT: 1.2 uSec
Pole Zero: 2048

220816
220817
220825
220906




























220919
22091901
220920
Results: 210Pb:
7Be:

54Mn

228Ac:














221014
221021
221024
221025
22102701
(Mbq) <0.55

<0.15

<0.033

0.229 +- 0.043















22110401
221219
230117

























Background CW19
N/A 63.332 230419
230613
230614
230620
Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Completely Empty Detector



(mBq) 0.153 +- 0.021 0.154 +- 0.104 0.0076 +- 0.0048 0.204 +- 0.023 6.88 +- 1.13 0.031 +- 0.026 0.171 +- 0.042




































Results: 210Pb:
7Be:

54Mn

228Ac:
















(Mbq) <0.65

0.23 +- 0.11 <0.041

0.228 +- 0.058










































The measurements of the samples below take into account the background measurements from the background table.
If a measurement is below the background then the upper bound shown is the 90% confidence limit.
SNOLAB Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SNOLAB CW01

17.199 130214
130508
13051601		 Feb 14, 2013 –- Feb 19, 2013 (mBq) 0.281 +- 0.168 0.047 +- 0.133 0.039 +- 0.036 1.833 +- 0.974 <0.183

<1.815

0.598 +- 0.760
Empty Cowie Bottle Background



May 8, 2013 –- May 21, 2013
























KCM CW01a Sample #1a 15 g (total) 7.741 180131 Jan 31, 2018 (Bq/kg) 81.23 +- 2.55 17.80 +- 1.74 2.66 +- 2.79 61.01 +- 2.75 142.25 +- 4.57 3.25 +- 2.72 <0.65


Water Sample from Kidd Creek Mine Level 7850 29.01.2018_KC7850_12299_SLRS 7.5 g (inside well)

Feb 8, 2018 (ppb or ppm) 6.58 ppm +- 0.21 ppm 1.44 ppm +- 0.14 ppm 4.69 ppm +- 0.49 ppm 15.01 ppm +- 0.68 ppm 34.99 ppm +- 1.12 ppm


<53.03 ppb




KCM CW01b Sample #1b 13.5 g 6.935 180215
18021501		 Feb 15, 2018 (Bq/kg) 111.85 +- 3.35 31.13 +- 2.83 2.41 +- 0.28 10.19 +- 0.61 137.92 +- 4.51 <4.03

<1.36


Water Sample from Kidd Creek Mine Level 7850 29.01.2018_KC7850_12299_SLRS 7.5 g (inside well)

Feb 22, 2018 (ppb or ppm) 9.06 ppm +- 0.27 ppm 2.52 ppm +- 0.23 ppm 4.23 ppm +- 0.49 ppm 2.51 ppm +- 0.15 ppm 33.93 ppm +- 1.11 ppm


<110.12 ppb




KCM CW02a Sample #2a 15 g 6.889 180208
18020801
180213		 Feb 8, 2018 (mBq/kg) 43.62 +- 35.11 <25.87

7.43 +- 6.50 26.22 +- 23.43 120.41 +- 56.98 <658.93

97.07 +- 82.53
Service Water Sample from Kidd Creek Mine Level 7850 29.01.2018_KC7850_SW_SLRS 7.5 g (inside well)

Feb 15, 2018 (ppb or ppm) 3.53 ppb +- 2.84 ppb <2.10 ppb

13.07 ppb +- 11.43 ppb 6.45 ppb +- 5.76 ppb 29.62 ppb +- 14.02 ppb


7.86 ppb +- 6.69 ppb


KCM CW02b Sample #2b 14 .2 g 11.872 180307
180314		 Mar 7, 2018 (mBq/kg) 6.27 +- 25.48 38.00 +- 21.73 <6.13

24.10 +- 18.66 59.13 +- 42.82 <325.20

163.33 +- 60.00
Service Water Sample from Kidd Creek Mine Level 7850 29.01.2018_KC7850_SW_SLRS 7.5 g (inside well)

Mar 19, 2018 (ppb or ppm) 0.51 ppb +- 2.06 ppb 3.08 ppb +- 1.76 ppb <10.80 ppb

5.93 ppb +- 4.59 ppb 14.55 ppb +- 10.53 ppb


13.23 ppb +- 4.86 ppb


SNOLAB CW02 FisherBrand FS585008
8 mL test tube		 4.5 g 22.604 18041101
180420
180425		 Apr 11, 2018 (mBq/kg) 88.59 +- 39.61 <29.78

3.16 +- 6.06 15.88 +- 25.24 23.53 +- 49.04 <323.78

44.44 +- 58.22
Empty Sample Vial HDPE
17.5 mm diam
63 mm tall


May 4, 2018 (ppb or ppm) 7.18 ppb +- 3.21 ppb <2.41 ppb

5.56 ppb +- 10.66 ppb 3.91 ppb +- 6.21 ppb 5.79 ppb +- 12.06 ppb


3.60 ppb +- 4.72 ppb


SNOLAB CW03 Lead sample from Soudan lead 70.9 g 17.492 18121901
190104		 Dec 19, 2018 (mBq/kg) 23.89 +- 21.86 <121.90

29.85 +- 21.41 27.89
25.91 <87.29

<32.54

116020.00 +- 6650.00
Lead Rectangular Cuboid Soudan Lead #1 1” x 7/16” x 7/16”
2 rectangular cuboids counted together		 Efficiencies are corrected for self-absorption by the lead using ANGLE4
Jan 7, 2019 (ppb or ppm) 1.94 ppb +- 1.77 ppb <9.87 ppb

52.54 ppb +- 37.68 ppb 6.86 ppb +- 6.37 ppb <21.47 ppb




9.4 ppm +- 0.54 ppm


SNOLAB CW04 Lead sample from Soudan lead 73.3 g 14.428 190527
190601		 May 27, 2019 (mBq/kg) 9.81 +- 18.56 <112.30

30.48 +- 13.82 21.86 +- 21.12 28.04 +- 63.38 <38.06

18606.00 +- 1719.00
Lead Rectangular Cuboid Soudan Lead #2 1” x 7/16” x 7/16”
2 rectangular cuboids counted together		 Efficiencies are corrected for self-absorption by the lead using ANGLE4
Jun 11, 2019 (ppb or ppm) 0.79 ppb +- 1.5 ppb <9.1 ppb

53.64 ppb +- 24.32 ppb 5.38 ppb +- 5.2 ppb 6.9 ppb +- 15.59 ppb


1.51 ppm +- 0.14 ppm


SNOLAB CW05 Lead sample from Soudan lead 72.4 g 23.761 190801
190806		 Aug 1, 2019 (mBq/kg) 12.61 +- 16.59 <72.11

33.66 +- 16.39 33.48 +- 23.90 <79.14

23.11 +- 18.46 82250.00 +- 4723.00
Lead Rectangular Cuboid Soudan Lead #3 1” x 7/16” x 7/16”
2 rectangular cuboids counted together		 Efficiencies are corrected for self-absorption by the lead using ANGLE4
Aug 26, 2019 (ppb or ppm) 1.02 ppb +- 1.34 ppb <5.84 ppb

59.24 ppb +- 28.85 ppb 8.24 ppb +- 5.88 ppb <19.47 ppb




6.66 ppm +- 0.38 ppm


SNOLAB CW06 Lead sample from Soudan lead 72.3 g 30.424 191007
191014
19101401
191016		 Oct 7, 2019 (mBq/kg) 50.49 +- 19.47 29.20 +- 171.90 <11.14

<22.97

<70.28

<18.63

140850.00 +- 7580.00
Lead Rectangular Cuboid Soudan Lead #4 1” x 7/16” x 7/16”
2 rectangular cuboids counted together		 Efficiencies are corrected for self-absorption by the lead using ANGLE4
Nov 8, 2019 (ppb or ppm) 4.09 ppb +- 1.58 ppb 2.37 ppb +- 13.92 ppb <2.74 ppb

<5.65 ppb

<17.29 ppb




11.41 ppm +- 0.61 ppm


SNOLAB CW07 Swipe Test Prepared on 2019.01.24 0.2 g 6.746 190130 Jan 30, 2019 (mBq) 444.30 +- 1481.00 <1149.00

<162.20

<1569.00

489.10 +- 2258.00 <18670.00

5969.00 +- 3907.00
XIA Th-230 Source Swipe Test 1 swipe placed inside vial with the swiped side facing outwards


Feb 6, 2019 (ppb or ppm) 35.99 ppb +- 119.96 ppb <93.07 ppb

<285.47 ppb

<385.97 ppb

120.32 ppb +- 555.47 ppb


0.48 ppm +- 0.32 ppm


SNOLAB CW08 ~55cm long strand 24.399 g 7.092 190625 Jun 25, 2019 (mBq) 17.32 +- 25.97 <41.32

6.48 +- 9.40 <30.45

<65.57

<125.30

8045.10 +- 444.90
White Silver Sil-Pure Pb-free CMP Global Ltd


Jul 2, 2019 (ppb or ppm) 1.4 ppb +- 2.1 ppb <3.35 ppb

11.41 ppb +- 16.54 ppb <7.49 ppb

<16.13 ppb




651.65 ppb +- 36.04 ppb


SNOLAB CW09 NIST Sample 3.689 g 17.674 200213
200114		 Feb 13, 2020 (mBq) 14370.00 +- 639.20 13300.00 +- 1456.00 874.10 +- 32.78 16630.00 +- 643.92 6942.00 +- 513.00 12269.57 +- 1547.54 10937.00 +- 920.40
Powdered Ocean Sediment Calibration Sample Cross Comparison Sample


Mar 2, 2020 (ppb or ppm) 1163.97 ppb +- 51.78 ppb 1077.3 ppb +- 117.94 ppb 1538.42 ppb +- 57.69 ppb 4090.98 ppb +- 158.4 ppb 1707.73 ppb +- 126.2 ppb


885.9 ppb +- 74.55 ppb










60Co

241Am

40K



















(mBq) <2990.00

15468.00 +- 803.20 387388.89 +- 90244.11




















(ppb or ppm)





12512.66 ppm +- 2914.88 ppm














SNOLAB CW10 Lucas Cell Coating 13.0 g 23.614 201218 Dec 18, 2020 (mBq/kg) <15.69

16.39 +- 8.28 <1.14

<14.98

<31.90

20.31 +- 51.52 21.06 +- 22.39


ZnS(Ag) Powder Saint-Gobain

The sample is also counted on the VDA detector as SNOLAB V33 Jan 11, 2021 (ppb or ppm) <1.27 ppb

1.33 ppb +- 0.67 ppb <0.28 ppb

<3.69 ppb

<7.85 ppb




1.71 ppb +- 1.81 ppb


SNOLAB CW11 Project 2020-11 2.8 g 13.557 220204 Feb 4, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Regular Activated Charcoal



Feb 18, 2022 (mBq/kg) 465.50 +- 47.48 166.90 +- 225.40 4.38 +- 8.57 114.50 +- 37.57 499650.00 +- 27610.00 183.05 +- 118.90 <164.60








(ppb or ppm) 37.71 ppb +- 3.85 ppb 13.52 ppb +- 18.26 ppb 7.71 ppb +- 15.07 ppb 28.17 ppb +- 9.24 ppb 16138.7 ppm +- 891.8 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 642.91 +- 981.50 <501.40

<117.60

<194.50

















(ppb or ppm) 52.08 ppb +- 79.5 ppb





<47.85 ppb












SNOLAB CW12 Project 2020-11 3.2 g 13.763 220218 Feb 18, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Regular Activated Charcoal Rinsed with Nitric Acid Sample dried with N2 gas.


Mar 4, 2022 (mBq/kg) <33.25

<205.10

<5.38

99.75 +- 20.06 26256.00 +- 2653.00 <162.50

<72.30








(ppb or ppm) <2.69 ppb

<16.61 ppb

<9.47 ppb

24.54 ppb +- 4.93 ppb 848.07 ppm +- 85.69 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <548.20

<93.96

<24.32

50.23 +- 46.65















(ppb or ppm) <44.4 ppb







12.36 ppb +- 11.48 ppb










SNOLAB CW13 Project 2020-11 4.2 g 6.890 220401 Apr 1, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Regular Activated Charcoal



Apr 8, 2022 (mBq/kg) 6867.00 +- 232.40 7455.00 +- 543.10 287.40 +- 17.06 6201.00 +- 255.60 16764.00 +- 2646.00 <60.32

<75.14








(ppb or ppm) 556.23 ppb +- 18.82 ppb 603.86 ppb +- 43.99 ppb 505.82 ppb +- 30.03 ppb 1525.45 ppb +- 62.88 ppb 541.48 ppm +- 85.47 ppm








CarboTech - Activated Carbon – CMS-H2


Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 2764.20 +- 884.50 261.34 +- 255.90 <83.53

5379.00 +- 260.20















(ppb or ppm) 223.9 ppb +- 71.64 ppb





1323.23 ppb +- 64.01 ppb










SNOLAB CW14 Project 2020-11 4.7 g 10.798 220408 Apr 8, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Regular Activated Charcoal Rinsed with Nitric Acid Sample dried with N2 gas.


Apr 19, 2022 (mBq/kg) 3005.00 +- 107.90 5538.00 +- 376.30 182.30 +- 10.14 4350.00 +- 169.60 9237.80 +- 1489.00 <94.92

<56.32








(ppb or ppm) 243.41 ppb +- 8.74 ppb 448.58 ppb +- 30.48 ppb 320.85 ppb +- 17.85 ppb 1070.1 ppb +- 41.72 ppb 298.38 ppm +- 48.09 ppm








CarboTech - Activated Carbon – CMS-H2


Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 1950.10 +- 629.50 <209.10

<76.88

2219.00 +- 127.50















(ppb or ppm) 157.96 ppb +- 50.99 ppb





545.87 ppb +- 31.37 ppb










SNOLAB CW15 Sample Rock Bolt from TAD Expansion Area 131.1 g 12.735 230531 May 31, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Rock Bolt
(Carbon Steel)



Jun 13, 2023 (mBq/kg) 33.55 +- 2.04 101.00 +- 24.59 1.86 +- 0.36 53.87 +- 3.08 877.76 +- 90.74 <5.33

<2.68








(ppb or ppm) 2.72 ppb +- 0.16 ppb 8.18 ppb +- 1.99 ppb 3.28 ppb +- 0.63 ppb 13.25 ppb +- 0.76 ppb 28.35 ppm +- 2.93 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 107.31 +- 472.30 6.47 +- 7.09 <2.03

50.54 +- 3.96















(ppb or ppm) 8.69 ppb +- 38.26 ppb





12.43 ppb +- 0.97 ppb










SNOLAB CW16 Charcoal Trap for Gas Assays at SNOLAB 4.95 g 15.649 240209
240910
24021001		 Feb 9, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Blucher Protects Spherical Adsorbents



Feb 26, 2024 (mBq/kg) 72.96 +- 11.98 <52.53

<3.15

5.06 +- 10.02 1509.00 +- 559.60 <85.24

<10.57








(ppb or ppm) 5.91 ppb +- 0.97 ppb <4.25 ppb

<5.54 ppb

1.24 ppb +- 2.46 ppb 48.74 ppm +- 18.08 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <363.70

<107.90

<14.78

8.06 +- 17.71















(ppb or ppm) <29.46 ppb







1.98 ppb +- 4.36 ppb










SNO+:





























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SNO+ CW01
--- 5.776 140312
14031302
140316		 Mar 12, 2014 (mBq) 0.406 +- 0.332 1.908 +- 0.333 0.368 +- 0.088 0.589 +- 0.199 <0.219

8.800 +- 5.200 80.200 +- 3.100
Acrylic_G UPW 12C, leached 37 days



Mar 18, 2014
























SNO+ CW02
--- 10.875 140327
140330
140404		 Mar 27, 2014 (mBq) 0.224 +- 0.222 <0.181

0.125 +- 0.068 0.100 +- 0.100 <0.635

<0.764

3.100 +- 0.600
UPW Assay from 140214 Supernatant Solution



Apr 7, 2014
























SNO+ CW03
--- 15.161 140407
140421		 Apr 7, 2014 (mBq) 0.194 +- 0.160 0.240 +- 0.089 0.012 +- 0.068 0.297 +- 0.100 0.121 +- 0.447 <1.338

2.60 +- 0.50
Water Assay with Dowex, set #2, 140214



Apr 23, 2014
























SNO+ CW04
--- 4.928 140423 Apr 23, 2014 (mBq/kg) <0.050

0.062 +- 0.197 <0.055

0.297 +- 0.199 0.398 +- 0.735 3.30 +- 3.50 37.10 +- 2.10
EDTA 16 Days Leaching A_D 010414



Apr 28, 2014 (ppb or ppm)























SNO+ CW05 Set 1, 010414 --- 7.903 140428
140505		 Apr 28, 2014 (mBq/kg) <0.231

0.120 +- 0.179 0.095 +- 0.086 0.370 +- 0.198 <0.224

<2.620

48.90 +- 1.90
Cavity Water Assay Supernate



May 6, 2014 (ppb or ppm)























SNO+ CW06 Set 2, 010414 --- 7.826 140506 May 6, 2014 (mBq/kg) <0.209

<0.206

0.127 +- 0.069 0.213 +- 0.198 0.912 +- 0.853 <2.620

2.20 +- 0.60
Cavity Water Assay Supernate



May 14, 2014 (ppb or ppm)























SNO+ CW07 Prepared On: 270414 --- 17.936 140514
140519
140530		 May 14, 2014 (mBq/kg) 0.693 +- 0.215 <0.042

0.239 +- 0.068 0.107 +- 0.100 <0.635

<1.082

3.10 +- 0.50
A_D UPW Leach 25 days



Jun 2, 2014 (ppb or ppm)























SNO+ CW08 Prepared On: 270514
7.306 140602 Jun 2, 2014 (mBq/kg) <0.051

0.200 +- 0.141 0.191 +- 0.069 <0.149

<0.280

<2.877

2.20 +- 0.60
HCL QSIL Wash



Jun 9, 2014 (ppb or ppm)























SNO+ CW09 Prepared On: 270514
7.686 140609 Jun 9, 2014 (mBq/kg) 0.076 +- 0.229 0.023 +- 0.166 0.113 +- 0.048 0.053 +- 0.199 <0.592

<2.749

10.40 +- 1.00
Qsil A_G LAB



Jun 17, 2014 (ppb or ppm)























SNO+ CW10 Prepared On: 270514
5.840 140708 Jul 8, 2014 (mBq/kg) 0.35 +- 0.29 0.31 +- 0.17 <0.11

0.30 +- 0.20 <0.94

<3.67

4.60 +- 0.80
LAB A_G 5 mL



Jul 15, 2014 (ppb or ppm)
























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SNO+ CW11 Prepared On: 270514
8.896 140714
140722		 Jul 14, 2014 (mBq/kg) <0.32

0.05 +- 0.17 0.023 +- 0.044 0.08 +- 0.20 <0.55

<2.36

2.40 +- 0.60
HCL QSIL Wash 2 mLSS



Jul 23, 2014 (ppb or ppm)























SNO+ CW12 Prepared On: 270514
10.500 140807 Aug 7, 2014 (mBq/kg) <0.025

<0.211

0.063 +- 0.044 0.093 +- 0.198 <0.197

<1.979

2.300 +- 0.700
LAB A_G Qsil 10 mL



Aug 18, 2014 (ppb or ppm)























SNO+ CW13 Prepared On: 070714
7.910 140723 Jul 23, 2014 (mBq/kg) 0.71 +- 0.29 0.10 +- 0.17 0.00 +- 0.05 0.20 +- 0.20 0.37 +- 0.59 <2.62

9.60 +- 0.90
EDTA Leaching A_D 25C



Jul 31, 2014 (ppb or ppm)























SNO+ CW14

6.451 140731 Jul 31, 2014 (mBq/kg) <0.264

<0.114

0.06 +- 0.09 1.58 +- 0.30 <0.505

<3.26

16.40 +- 1.30
A_B EDTA Leach 0.027M, 12 C



Aug 7, 2014 (ppb or ppm)























SNO+ CW15 Prepared On: 110814
6.950 140825
140830		 Aug 25, 2014 (mBq) <0.212

0.200 +- 0.447 <0.086

4.076 +/- 0.392 0.071 +- 0.770 <3.005

14.800 +- 1.300
AV Tube EDTA Leaching 17/25



Sep 2, 2014
























SNO+ CW16 Prepared On: 140814
5.861 140902 Sep 2, 2014 (mBq) 0.175 +- 0.235 5.844 +- 0.591 0.331 +- 0.088 1.995 +/- 0.297 2.001 +- 0.876 <3.646

7.70 +- 1.10
AD Leaching in TeLS 12C, 23 days



Sep 8, 2014
























SNO+ CW17 Prepared On: 140901
6.812 140915
140918		 Sep 15, 2014 (mBq) <0.226

0.069 +- 0.186 0.109 +- 0.088 1.14 +/- 0.30 0.22 +- 0.55 <3.01

4.30 +- 0.80
LWA 140801 Supernate, Set 1



Sep 22, 2014
























SNO+ CW18 Prepared On: 140901
6.874 140922
14092201		 Sep 22, 2014 (mBq) 0.15 +/- 0.30 0.39 +- 0.46 0.154 +- 0.088 5.28 +/- 0.39 < 0.41

<3.01

2.60 +- 0.90
LWA 140801 Supernate, Set 2



Sep 29, 2014
























SNO+ CW19 Prepared On: Nov. 2014
18.569 14112604
141205
141209		 Nov 26, 2014 (mBq) 0.22 +- 0.15 1.18 +- 0.17 0.085 +- 0.033 0.34 +- 0.14 <0.56

<1.54

3.32 +- 0.49
A_D PRS 12C, 30 Days, Nov 2014



Dec 15, 2014
























SNO+ CW20 Prepared On: January 27, 2015
25.076 150129
150130
150209
15020901
150211		 Jan 29, 2015 (mBq) 0.28 +- 0.15 0.13 +- 0.17 0.091 +- 0.031 0.33 +- 0.13 0.19 +- 0.28 <1.13

922.82 +- 47.15
AV LWA Supernate at 50%



Feb 23, 2015

























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SNO+ CW21

5.826 150310
150313		 Mar 10, 2015 (mBq) 1.15 +- 0.35 0.61 +- 0.28 0.207 +- 0.068 0.46 +- 0.23 <3.74

<5.86

102.74 +- 6.07
Radon Box #1



Mar 16, 2015
























SNO+ CW22

4.951 150316 Mar 16, 2015 (mBq) 0.49 +- 0.36 0.30 +- 0.25 0.019 +- 0.056 1.02 +- 0.27 0.86 +- 0.54 <6.92

14.29 +- 1.57
Radon Box #2



Mar 21, 2015
























SNO+ CW23

4.910 150321
150323		 Mar 21, 2015 (mBq) <0.34

0.33 +- 0.20 0.073 +- 0.053 0.35 +- 0.21 0.14 +- 0.50 <6.98

3.88 +- 0.88
Radon Box #3



Mar 26, 2015
























SNO+ CW24

7.722 150408 Apr 8, 2015 (mBq) 0.98 +- 0.37 0.58 +- 0.25 0.092 +- 0.056 0.73 +- 0.23 <1.39

6.512 +- 4.203 4.55 +- 0.89
Radon Box #4



Apr 16, 2015
























SNO+ CW25

3.889 150416 Apr 16, 2015 (mBq) 2.50 +- 0.76 2.47 +- 0.59 0.228 +- 0.117 2.33 +- 0.46 0.90 +- 1.02 <8.34

63.87 +- 4.67
Radon Box #5_1



Apr 20, 2015
























SNO+ CW26

9.868 150220 Apr 20, 2015 (mBq) 0.68 +- 0.30 0.31 +- 0.19 0.096 +- 0.047 0.61 +- 0.18 <1.07

<3.42

15.10 +- 1.30
Radon Box #5_2



Apr 30, 2015
























SNO+ CW27

6.792 150430
150505
15050504		 Apr 30, 3015 (mBq) <0.092

<0.12

0.012 +- 0.043 0.34 +- 0.21 0.46 +- 0.47 <5.01

10.49 +- 1.15
Radon Box #6



May 7, 2015
























SNO+ CW28

6.903 150507 May 7, 2015 (mBq) 0.07 +- 0.26 <0.091

<0.039

0.20 +- 0.17 <0.75

<4.93

7.20 +- 0.94
Radon Box #7



May 14, 2015
























SNO+ CW29

6.889 150326 Mar 26, 2015 (mBq) 0.53 +- 0.30 <0.071

0.016 +- 0.052 2.50 +- 0.34 0.27 +- 0.51 <4.94

2.11 +- 0.73
Cavity Water Assay #1, 22 litres



Apr 2, 2015
























SNO+ CW30

5.868 150402 Apr 2, 2015 (mBq) 0.29 +- 0.29 <0.16

0.043 +- 0.052 2.04 +- 0.32 <0.90

<5.82

1.71 +- 0.70
Cavity Water Assay #2, Dowex Eluted



Apr 8, 2015

























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SNO+ CW31
18.5 g 9.965 160205
160206
16020601
16020604
160210
160214
160215
160216		 Feb 5, 2016 (mBq/kg) <17.35

6.09 +- 8.20 2.97 +- 2.32 61.06 +- 11.93 29.09 +- 20.34 82.87 +- 115.35 182.32 +- 34.05
SNO+ Water Assay From 160203


Feb 16, 2016 (ppb or ppm) <1.41 ppb

0.49 ppb +- 0.66 ppb 5.23 ppb +- 4.08 ppb 15.02 ppb +- 2.93 ppb 7.16 ppb +- 5.00 ppb


14.77 ppb +- 2.76 ppb


SNO+ CW32
13.4 g 5.776 16021601
160217
16021702
16021705
16021707
16021708
16021713
160218
16021802
16021803
16021805
 Feb 16, 2016 (mBq/kg) <15.52

<10.99

0.82 +- 3.95 <21.27

<86.27

<441.12

233.28 +- 62.61
SNO+ Assay Cleanup from 160128


Feb 23, 2016 (ppb or ppm) <1.26 ppb

<0.89 ppb

1.44 ppb +- 6.95 ppb <5.23 ppb

<21.22 ppb




18.90 ppb +- 5.07 ppb


SNO+ CW33 Sample made on 15.02.16
5.972 160223 Feb 23, 2016 (mBq/kg) 0.06 +- 0.25 <0.21

<0.086

0.15 +- 0.18 0.97 +- 0.48 <5.72

2.44 +- 0.71
A_D Leaching is TeBD_LS



Feb 29, 2016 (ppb or ppm) 0.005 ppb +- 0.020 ppb <0.017 ppb

<0.15 ppb

0.038 ppb +- 0.044 ppb 0.24 ppb +- 0.12 ppb








SNO+ CW34 Sample made on 08.02.16 37.0 g 16.118 160229
16022908
160301
160303
160316		 Feb 29, 2016 (mBq/kg) <3.49

4.37 +- 2.88 <1.19

0.93 +- 3.40 <20.14

<55.81

58.89 +- 11.81
Supernatant Sample



Mar 17, 2016 (ppb or ppm) <0.28 ppb

0.35 ppb +- 0.23 ppb <2.09 ppb

0.20 ppb +- 0.84 ppb <4.95 ppb










SNO+ CW35 Sample made on 160208 18.1 g 7.660 160331 Mar 31, 2016 (mBq/kg) 10.49 +- 17.15 <19.88

<3.48

44.02 +- 12.77 <37.98

<245.03

112.21 +- 49.01
Supernatant LWA



Apr 8, 2016 (ppb or ppm) 0.85 ppb +- 1.39 ppb <1.61 ppb

<6.13 ppb

10.83 ppb +- 3.04 ppb <9.34 ppb




9.09 ppb +- 3.97 ppb


SNO+ CW36 Sample made on 160218B 17.1 g 6.319 160408 Apr 8, 2016 (mBq/kg) 24.41 +- 16.86 5.68 +- 10.19 5.31 +- 2.68 5.40 +- 10.12 24.92 +- 25.79 <315.56

246.08 +- 45.56
Supernatant LWA



Apr 14, 2016 (ppb or ppm) 1.98 ppb +- 1.37 ppb 0.46 ppb +- 0.83 ppb 9.35 ppb +- 4.71 ppb 1.33 ppb +- 2.49 ppb 6.13 ppb +- 6.35 ppb


19.93 ppb +- 3.69 ppb


SNO+ CW37 Sample made on 160309 18.6 g 6.554 160414
160415
16041501		 Apr 14, 2016 (mBq/kg) <16.08

7.28 +- 9.30 1.35 +- 2.36 23.80 +- 10.11 14.58 +- 22.30 <279.46

98.76 +- 39.79
Supernatant LWA



Apr 21, 2016 (ppb or ppm) <1.30 ppb

0.59 ppb +- 0.75 ppb 2.38 ppb +- 4.15 ppb 5.86 ppb +- 2.49 ppb 3.59 ppb +- 5.49 ppb


8.00 ppb +- 3.22 ppb


SNO+ CW38 Sample made on 160330 20.0 g 6.528 160421
160426		 Apr 21, 2016 (mBq/kg) 17.01 +- 14.44 <11.24

1.33 +- 2.30 <15.35

0.233 +- 20.923 <261.05

103.75 +- 30.50
Supernatant LWA Blank


Apr 28, 2016 (ppb or ppm) 1.38 ppb +- 1.17 ppb <0.91 ppb

2.33 ppb +- 4.05 ppb <3.78 ppb

0.06 ppb +- 5.15 ppb


8.40 ppb +- 2.47 ppb


SNO+ CW39 Sample made on 160404 20.5 g 13.799 160428 Apr 28, 2016 (mBq/kg) 3.73 +- 10.31 <6.77

0.19 +- 1.61 17.99 +- 7.01 14.04 +- 14.85 <118.24

60.29 +- 20.59
CF-Scint-Assay Supernatant for Pb210



May 12, 2016 (ppb or ppm) 0.30 ppb +- 0.84 ppb <0.55 ppb

0.34 ppb +- 2.83 ppb 4.42 ppb +- 1.72 ppb 3.46 ppb +- 3.65 ppb


4.88 ppb +- 1.67 ppb


SNO+ CW40 AV Set 5 160308 22.4 g 6.312 160512
160514
160517		 May 12, 2016 (mBq/kg) <21.12

<5.66

0.31 +- 2.41 154.40 +- 17.86 <33.13

113.26 +- 150.00 315.80 +- 46.47
Supernatant LWA



May 19, 2016 (ppb or ppm) <1.71 ppb

<0.46 ppb

0.54 ppb +- 4.24 ppb 37.98 ppb +- 4.39 ppb <8.15 ppb




25.58 ppb +- 3.76 ppb



Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SNO+ CW41 Sample Prepared on 160512 -- 11.743 160519
160520		 May 19, 2016 (mBq) <0.24

0.25 +- 0.13 0.033 +- 0.034 0.29 +- 0.14 0.43 +- 0.33 2.74 +- 2.34 1.80 +- 0.50
A_D Leach TeBD 56 days



May 31, 2016 (ppb or ppm)























SNO+ CW42 Sample Prepared on 160517 21.5 g 8.213 160531
160603		 May 31, 2016 (mBq/kg) 0.51 +- 9.75 0.11 +- 10.41 <2.84

15.86 +- 8.45 1.32 +- 20.78 <192.00

17896.37 +- 939.12
Supernatant LWA AV Assay



Jun 8, 2016 (ppb or ppm) 0.05 ppb +- 0.79 ppb 0.01 ppb +- 0.84 ppb <4.99 ppb

3.90 ppb +- 2.08 ppb 0.32 ppb +- 5.11 ppb


1.45 ppm +- 0.08 ppm


SNO+ CW43 Sample Prepared on 170330 18.9 g 13.590 170511
170518		 May 11, 2017 (mBq/kg) <10.90

<11.69

1.07 +- 1.89 0.09 +- 7.10 <32.43

<112.33

58.57 +- 25.77
Supernatant LWA



May 25, 2017 (ppb or ppm) <0.88 ppb

<0.95 ppb

1.89 ppb +- 3.32 ppb 0.02 ppb +- 1.75 ppb <7.98 ppb




4.74 ppb +- 2.09 ppb


SNO+ CW44 Sample Prepared on 170613 30.5 g 7.792 170711
17071101		 Jul 11, 2017 (mBq/kg) 6.03 +- 8.98 5.26 +- 6.17 1.85 +- 1.55 1.81 +- 5.21 <19.21

<142.89

4125.51 +- 230.75
Supernatant LWA



Jul 19, 2017 (ppb or ppm) 0.49 ppb +- 0.73 ppb 0.43 ppb +- 0.50 ppb 3.26 ppb +- 2.73 ppb 0.45 ppb +- 1.28 ppb <4.73 ppb




334.17 ppb +- 18.69 ppb


SNO+ CW45 Sample Prepared on 160830 19.9 g 16.750 161017
161020		 Oct 17, 2016 (mBq/kg) 10.47 +- 9.51 12.12 +- 5.37 1.36 +- 1.47 .6.16 +- 6.38 8.51 +- 13.42 <99.75

251.41 +- 28.39
Supernatant LWA



Nov 3, 2016 (ppb or ppm) 0.85 ppb +- 0.77 ppb 0.98 ppb +- 0.44 ppb 2.39 ppb +- 2.59 ppb 1.52 ppb +- 1.57 ppb 2.09 ppb +- 3.30 ppb


20.36 ppb +- 2.30 ppb


SNO+ CW46

18.694 170719
170720
170804
170807		 Jul 19, 2017 (mBq) 0.05 +- 0.13 <0.23

0.064 +- 0.028 0.01 +- 0.12 0.35 +- 0.25 <1.53

22.87 +- 1.45
Acrylic Leaching DDA-LAB



Aug 9, 2017






.
















SNO+ CW47 Sample Prepared on 170802 & 03 21.1 g 8.826 170815
170818		 Aug 15, 2017 (mBq/kg) 21.93 +- 13.43 0.75 +- 6.98 <2.37

7.94 +- 7.62 46.918 +- 19.882 <181.80

48.48 +- 28.10
Supernatant LWA



Aug 24, 2017 (ppb or ppm) 1.78 ppb +- 1.09 ppb 0.06 ppb +- 0.56 ppb <4.17 ppb

1.95 ppb +- 1.87 ppb 11.54 ppb +- 4.89 ppb


3.93 ppb +- 2.28 ppb


SNO+ CW48 Sample Prepared on 171116, sample 1 15.7 g 6.727 171206
171213		 Dec 6, 2017 (mBq/kg) 518.41 +- 58.81 <15.48

6.45 +- 5.48 1.01 +- 15.57 82.31 +- 49.58 <322.42

208.98 +- 60.26
Supernatant LWA



Dec 13, 2017 (ppb or ppm) 41.99 ppb +- 4.44 ppb <1.25 ppb

11.35 ppb +- 9.65 ppb 0.25 ppb +- 3.83 ppb 20.25 ppb +- 12.20 ppb


16.93 ppb +- 4.88 ppb


SNO+ CW49 Sample Prepared on 171116, sample 2 15.8 g 4.797 17121301 Dec 13, 0207 (mBq/kg) 30.12 +- 24.49 <30.57

3.69 +- 3.64 8.69 +- 14.64 71.43 +- 36.35 <451.84

489.75 +- 76.08
Supernatant LWA



Dec 18, 2017 (ppb or ppm) 2.44 ppb +- 1.98 ppb <2.48 ppb

6.49 ppb +- 6.40 ppb 2.14 ppb +- 3.60 ppb 17.57 ppb +- 8.94 ppb


39.67 ppb +- 6.16 ppb


SNO+ CW50 Sample Prepared on 171207 12.9 g 1.021 180104
18010401		 Jan 4, 2018 (mBq/kg) <108.68

<116.51

17.54 +- 16.43 31.46 +- 29.17 27.103 +- 168.468 <2633.80

334496.12 +- 17403.10
Supernatant This sample is from SNO+ AV


Jan 5, 2018 (ppb or ppm) <8.80 ppb

<9.44 ppb

30.87 ppb +- 28.91 ppb 7.74 ppb +- 7.18 ppb 6.67 ppb +- 41.44 ppb


27.09 ppm +- 1.41 ppm



Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SNO+ CW51 Sample Labeled AV-171207 7.5 g 10.011 180319 Mar 19, 2018 (mBq/kg) 16.46 +- 30.79 8.81 +- 16.60 13.31 +- 5.34 17.57 +- 20.30 39.71 +- 46.28 <449.47

4536.27 +- 293.87
AV Assay Sample Prepared on March 15, 2018 by D.C.


Mar 29, 2018 (ppb or ppm) 1.33 ppb +- 2.49 ppb 0.71 ppb +- 1.35 ppb 23.43 ppb +- 9.40 ppb 4.32 ppb +- 4.99 ppb 9.77 ppb +- 11.39 ppb


367.44 ppb +- 23.80 ppb


SNO+ CW52 Sample LWA-180321 25.7 g 10.990 180329
180411		 Mar 29, 2018 (mBq/kg) 33.35 +- 11.73 <8.17

<2.30

12.87 +- 6.21 <29.30

<119.18

150.97 +- 23.66
Supernatant 180322 Sample prepared on 180322


Apr 11, 2018 (ppb or ppm) 2.70 ppb +- 0.95 ppb <0.66 ppb

<4.04 ppb

3.17 ppb +- 1.53 ppb <7.21 ppb




12.23 ppb +- 1.92 ppb


SNO+ CW53 Sample prepared on 180419 by Ian Lam 8.8 g 13.861 180516
180517		 May 16, 2018 (mBq/kg) 82.80 +- 26.28 0.15 +- 11.68 8.48 +- 3.86 9.89 +- 15.68 <137.39

<274.21

37.05 +- 41.02
US AV 171116-2



May 30, 2018 (ppb or ppm) 6.71 ppb +- 2.13 ppb 0.01 ppb +- 0.95 ppb 14.92 ppb +- 6.79 ppb 2.43 ppb +- 3.90 ppb <33.80 ppb




3.01 ppb +- 3.32 ppb


SNO+ CW54 Sample Prepared on 160420 by L. Anselmo 20.5 g 3.924 180504 May 4, 2018 (mBq/kg) 46.18 +- 28.63 <98.73

<6.88

<19.27

<110.39

<427.07

491219.51 +- 25058.54
Supernatant 180416-US



May 8, 2018 (ppb or ppm) 3.74 ppb +- 2.32 ppb <8.00 ppb

<12.11 ppb

<4.74 ppb

<27.16 ppb




39.79 ppm +- 2.03 ppm


SNO+ CW55 Sample Prepared on 160420 by L. Anselmo 21.8 g 7.931 180508
18050801		 May 8, 2018 (mBq/kg) 24.36 +- 16.38 <38.35

0.68 +- 2.29 13.06 +- 8.35 <104.95

<196.33

11282.34 +- 602.84
Supernatant 180416-DS



May 16, 2018 (ppb or ppm) 1.97 ppb +- 1.33 ppb <3.11 ppb

1.20 ppb +- 4.02 ppb 3.21 ppb +- 2.06 ppb <25.82 ppb




913.06 ppb +- 48.83 ppb


SNO+ CW56 Sample prepared on 180530 by Tom Sonley 8.5 g 11.910 180530
180604
180608
180612		 May 30, 2018 (mBq/kg) 73.19 +- 28.27 5.09 +- 16.74 3.66 +- 4.33 42.26 +- 18.09 32.58 +- 39.06 <286.12

12782.82 +- 698.94
US 180416



Jun 13, 2018 (ppb or ppm) 5.93 ppb +- 2.29 ppb 0.41 ppb +- 1.36 ppb 6.44 ppb +- 7.62 ppb 10.40 ppb +- 4.45 ppb 8.02 ppb +- 9.61 ppb


1.04 ppm +- 0.06 ppm


SNO+ CW57 Sample prepared on 180530 by Tom Sonley 8.2 g 13.968 180613
180619
18061901
18061902
180625		 Jun 13, 2018 (mBq/kg) 195.64 +- 34.87 10.69 +- 14.46 10.39 +- 4.69 29.69 +- 17.53 68.70 +- 40.15 201.829 +- 239.878 170.85 +- 50.85
DS 180416


Jun 28, 2018 (ppb or ppm) 14.85 ppb +- 2.82 ppb 0.87 ppb +- 1.17 ppb 18.28 ppb +- 8.25 ppb 7.30 ppb +- 4.31 ppb 16.90 ppb +- 9.88 ppb


13.84 ppb +- 4.12 ppb


SNO+ CW58 Sample Prepared on 180923 7.11 g 15.232 171017
171018		 Oct 17, 2018 (mBq/kg) <413.80

2210.00 +- 1293.00 <36.51

256300.00 +- 14490.00 <1134.00

<946.50

23107.00 +- 1818.00
Dowex Resin



Nov 2, 2018 (ppb or ppm) <33.52 ppb

179.01 ppb +- 104.73 ppb <64.26 ppb

63.05 ppm +- 35.65 ppm <278.96 ppb




1871.67 ppb +- 147.26 ppb


SNO+ CW59 Sample Prepared on 181205 1.1 g 13.606 181205
181219		 Dec 5, 2018 (mBq/kg) <728.80

<4085.00

<219.60

535300.00 +- 27000.00 <2226.00

<4256.00

36046.00 +- 4051.00
Dowex Resin



Dec 19, 2018 (ppb or ppm) <59.03 ppb

<330.89 ppb

<386.5 ppb

131.68 ppm +- 66.42 ppm <547.6 ppb




2919.73 ppb +- 328.13 ppb


SNO+ CW60 Eight meters of umibilical was soaked in boiling water. 1.5 g 8.750 190107 Jan 7, 2019 (mBq/kg) 1124.00 +- 298.30 1821.00 +- 262.90 234.10 +- 46.86 586.20 +- 220.10 <592.90

<1923.00

1366.50 +- 592.00
Powdered Umbillical Leachate The sample was evaporated to become a powder.


Jan 16, 2019 (ppb or ppm) 91.04 ppb +- 24.16 ppb 147.5 ppb +- 21.29 ppb 412.02 ppb +- 82.47 ppb 144.21 ppb +- 54.14 ppb <145.85 ppb




110.69 ppb +- 47.95 ppb



Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SNO+ CW61 Sample Prepared on 190206 8.013 g 7.044 190206 Feb 6, 2019 (mBq/kg) 179.70 +- 98.10 <91.74

<20.21

15680.00 +- 776.50 <239.10

<322.50

<370.50


Dowex Effluent



Feb 13, 2019 (ppb or ppm) 14.56 ppb +- 7.95 ppb <7.43 ppb

<35.57 ppb

3857.28 ppb +- 191.02 ppb <58.82 ppb




<30.01 ppb




SNO+ CW62 Sample Prepared on 190301 ?? g 6.878 190301 Mar 1, 2019 (mBq/kg) <30.20

<18.04

3.08 +- 8.82 1469.00 +- 113.90 <110.50

<457.90

<141.20


Dowex Effluent
Assume 8g

Mar 8, 2019 (ppb or ppm) <2.45 ppb

<1.46 ppb

5.42 ppb +- 15.53 ppb 361.37 ppb +- 28.02 ppb <27.18 ppb




<11.44 ppb




SNO+ CW63 190225-BLK 8..8 g 9.935 190308 Mar 8, 2019 (mBq/kg) 59.53 +- 33.65 <29.05

3.86 +- 5.79 <36.55

<41.52

<289.10

267.13 +- 78.18
SNO+ Supernatant Sample



Mar 18, 2019 (ppb or ppm) 4.82 ppb +- 2.73 ppb <2.35 ppb

6.8 ppb +- 10.19 ppb <8.99 ppb

<10.21 ppb




21.64 ppb +- 6.33 ppb


SNO+ CW64 Sample Prepared by D.C and B.H on 190418 8.653 g 6.878 190418 Apr 18, 2019 (mBq/kg) <76.66

<43.30

<12.10

8436.00 +- 440.80 <88.43

<305.80

<176.00


Dowex Effluent



Apr 25, 2019 (ppb or ppm) <6.21 ppb

<3.51 ppb

<21.3 ppb

2075.26 ppb +- 108.44 ppb <21.75 ppb




<14.26 ppb




SNO+ CW65 Sample Prepared on 190708 13.5 g 7.966 190826 Aug 26, 2019 (mBq/kg) <20.68

<22.16

10.17 +- 4.07 <21.39

7.50 +- 34.02 <201.90

215.53 +- 51.38
Supernatant-LWA
 Sample Labeled LWA-190708-Blank


Sep 3, 2019 (ppb or ppm) <1.68 ppb

<1.79 ppb

17.9 ppb +- 7.16 ppb <5.26 ppb

1.84 ppb +- 8.37 ppb


17.46 ppb +- 4.16 ppb


SNO+ CW66 Sample Prepared on 190719 13.3 g 3.023 190923 Sep 23, 2019 (mBq/kg) <30.59

59.61 +- 38.21 1.19 +- 3.04 <27.94

<80.59

<1402.00

34539.00 +- 1883.00
Dowex Resin Prepared after the EDTA elution for the PSUP assay


Sep 26, 2019 (ppb or ppm) <2.48 ppb

4.83 ppb +- 3.1 ppb 2.1 ppb +- 5.35 ppb <6.87 ppb

<19.83 ppb




2797.66 ppb +- 152.52 ppb


SNO+ CW67 Sample Prepared on 190722 15.2 g 6.781 190916 Sep 16, 2019 (mBq/kg) 6.51 +- 22.70 <24.88

<1.55

<24.81

<40.58

<244.40

11672.00 +- 643.40
Supernatant-LWA-190719 Sample from PSUP using HtiO Technique


Sep 23, 2019 (ppb or ppm) 0.53 ppb +- 1.84 ppb <2.02 ppb

<2.73 ppb

<6.1 ppb

<9.98 ppb




945.43 ppb +- 52.12 ppb


SNO+ CW68 Sample was eluted from QuadraSil using DMSA, eluate was boiled down and transferred into the sample vial. 8.896 g 6.954 191108 Nov 8, 2019 (mBq/kg) 71.15 +- 44.20 <29.05

<4.15

<34.45

<55.57

<407.30

1625.00 +- 162.80
DMSA Eluent Pb-210 (liquid with precipitate) Prep. On 2019-10-29

Nov 15, 2019 (ppb or ppm) 5.76 ppb +- 3.58 ppb <2.35 ppb

<7.3 ppb

<8.47 ppb

<13.67 ppb




131.63 ppb +- 13.19 ppb


SNO+ CW69 Sample was eluted from QuadraSil using 1M HCl, eluate was boiled down and transferred into the sample vial. 8.816 g 6.926 191115 Nov 15, 2019 (mBq/kg) 164.60 +- 52.46 188.40 +- 42.56 9.31 +- 3.77 80.82 +- 40.81 119.00 +- 78.86 <412.60

6961.50 +- 440.10
1M HCl eluent (liquid/acidic/ Precipitate) Prep. On 2019-10-29

Nov 22, 2019 (ppb or ppm) 13.33 ppb +- 4.25 ppb 15.26 ppb +- 3.45 ppb 16.38 ppb +- 6.63 ppb 19.88 ppb +- 10.04 ppb 29.27 ppb +- 19.4 ppb


563.88 ppb +- 35.65 ppb


SNO+ CW70 Sample removed from column 8.914 g 5.699 191122
191128		 Nov 22, 2019 (mBq/kg) 178.40 +- 55.72 20.69 +- 29.67 <4.67

<36.68

<80.67

<495.40

795.86 +- 122.40
QuadraSil-Top after extraction (beads)
Prep. On 2019-10-24

Nov 29, 2019 (ppb or ppm) 14.45 ppb +- 4.51 ppb 1.68 ppb +- 2.4 ppb <8.22 ppb

<9.02 ppb

<19.84 ppb




64.46 ppb +- 9.91 ppb


SNO+ CW71 Sample was removed from column and transferred into vial 9.475 g 11.836 191129 Nov 29, 2019 (mBq/kg) 39.62 +- 26.92 33.81 +- 17.34 <1.67

21.18 +- 29.36 <53.65

<226.00

50.43 +- 54.07
QuadraSil- Bottom after extraction (Beads) Prep. on 2019-10-27


Dec 11, 2019 (ppb or ppm) 3.21 ppb +- 2.18 ppb 2.74 ppb +- 1.4 ppb <2.94 ppb

5.21 ppb +- 7.22 ppb <13.2 ppb




4.08 ppb +- 4.38 ppb


SNO+ CW72 System flushed and sample collected in vial. 7.920 g 7.876 191211 Dec 11, 2019 (mBq/kg) <19.68

28.00 +- 23.87 <5.10

<29.09

<91.30

<404.30

101.44 +- 63.95
UPW Supply via V-563L to MHAD Prep on 2019-10-16


Dec 19, 2019 (ppb or ppm) <1.59 ppb

2.27 ppb +- 1.93 ppb <8.98 ppb

<7.16 ppb

<22.46 ppb




8.22 ppb +- 5.18 ppb


SNO+ CW73 After preparing the sample in the clean lab on surface, the outside of the counting vial was methanol wiped. Prep on 2019-10-31 8.2 g 7.752 191219 Dec 19, 2019 (mBq/kg) <44.66

5.79 +- 23.68 <4.46

<52.21

8.49 +- 55.18 196.10 +- 241.40 727.09 +- 111.10
Dowex after the EDTA elution (solid sample)


Jan 6, 2020 (ppb or ppm) <3.62 ppb

0.47 ppb +- 1.92 ppb <7.85 ppb

<12.84 ppb

2.09 ppb +- 13.57 ppb


58.89 ppb +- 9 ppb


SNO+ CW74 Prepared in the clean lab on surface. The outside of the vial was methanol wiped. 15.4 g 6.878 200106 Jan 6, 2020 (mBq/kg) 21.12 +- 22.86 10.49 +- 13.65 <1.61

<23.42

24.59 +- 31.44 <204.70

104.77 +- 47.38
Supernatant sample from a blank assay (191031-BLK) Prep on 2019-10-31


Jan 13, 2020 (ppb or ppm) 1.71 ppb +- 1.85 ppb 0.85 ppb +- 1.11 ppb <2.83 ppb

<5.76 ppb

6.05 ppb +- 7.73 ppb


8.49 ppb +- 3.84 ppb


SNO+ CW75 Prep on 2019-12-02 13.0 g 6.878 200113 Jan 13, 2020 (mBq/kg) <11.39

<25.45

0.71 +- 1.80 <20.19

<32.53

<281.80

1541.80 +- 132.30
Supernatant (in solid form) from PSUP Assay



Jan 20, 2020 (ppb or ppm) <0.92 ppb

<2.06 ppb

1.25 ppb +- 3.17 ppb <4.97 ppb

<8 ppb




124.89 ppb +- 10.72 ppb


SNO+ CW76 Prep on 2019-11-28 8.472 g 6.871 200120 Jan 20, 2020 (mBq/kg) 18.00 +- 34.42 <40.41

<2.83

<30.72

<81.30

<432.80

9989.60 +- 606.30
Dowex after EDTA from PSUP Assay



Jan 27, 2020 (ppb or ppm) 1.46 ppb +- 2.79 ppb <3.27 ppb

<4.98 ppb

<7.56 ppb

<20 ppb




809.16 ppb +- 49.11 ppb


SNO+ CW77 Prep on 2020-01-16 8.4 g 7.883 200127 Jan 27, 2020 (mBq/kg) 11.92 +- 27.98 14.49 +- 21.29 1.09 +- 2.46 <34.18

47.12 +- 51.73 <380.80

550.92 +- 94.35
Dowex after EDTA elution From a blank assay on January 16, 2020


Feb 4, 2020 (ppb or ppm) 0.97 ppb +- 2.27 ppb 1.17 ppb +- 1.72 ppb 1.92 ppb +- 4.33 ppb <8.41 ppb

11.59 ppb +- 12.73 ppb


44.62 ppb +- 7.64 ppb


SNO+ CW78 Prep on 2020-01-16 14.5 g 8.833 200204 Feb 4, 2020 (mBq/kg) 28.87 +- 19.43 14.17 +- 11.30 1.31 +- 1.62 <20.37

<24.61

<197.10

167.85 +- 47.48
Supernatant Solution from Blank assay on 2020-01-16 From a blank assay on January 16, 2020


Feb 13, 2020 (ppb or ppm) 2.34 ppb +- 1.57 ppb 1.15 ppb +- 0.92 ppb 2.31 ppb +- 2.85 ppb <5.01 ppb

<6.05 ppb




13.6 ppb +- 3.85 ppb


SNO+ CW79 Prep on 2020-03-06 by D.C. 7.1 g 21.287 200519 May 19, 2020 (mBq/kg) 441.00 +- 53.33 <21.03

<2.23

<38.63

<76.04

41.59 +- 104.00 7730.40 +- 444.00
Dowex Resin after elution with EDTA



Jun 10, 2020 (ppb or ppm) 35.72 ppb +- 4.32 ppb <1.7 ppb

<3.92 ppb

<9.5 ppb

<18.71 ppb




626.16 ppb +- 35.96 ppb


SNO+ CW80 Prep on 2020-03-13 by S.R. 11.5 g 19.647 200610
200624		 Jun 10, 2020 (mBq/kg) <17.95

35.95 +- 16.04 0.09 +- 1.35 <28.61

<18.69

0.00 +- 69.26 33766.00 +- 1765.00
Supernatant PSUP Assay



Jun 30, 2020 (ppb or ppm) <1.45 ppb

2.91 ppb +- 1.3 ppb 0.17 ppb +- 2.37 ppb <7.04 ppb

<4.6 ppb




2735.05 ppb +- 142.97 ppb


SNO+ CW81 Prep on 2020-12-02 by D.F. 10.7 g 9.582 210517
210524		 May 17, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant PSUP Assay For Assay completed on 2020-11-27


May 27, 2021 (mBq/kg) <8.42

68.71 +- 38.70 <1.59

9.66 +- 5.61 1183.60 +- 310.00 <35.07

<17.57








(ppb or ppm) <0.68 ppb

5.57 ppb +- 3.13 ppb <2.8 ppb

2.38 ppb +- 1.38 ppb 38.23 ppm +- 10.01 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 8070.80 +- 566.70 <66.11

<5.91

<21.96

















(ppb or ppm) 653.73 ppb +- 45.9 ppb





<5.4 ppb











SNO+ CW82 Prep on 2021-05-31 by D.F. 12.6 g 11.690 210611 Jun 11, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant Blank Assay For Blank Assay completed on 2021-05-25


Jun 23, 2021 (mBq/kg) <2.65

121.20 +- 41.48 1.38 +- 0.84 0.74 +- 4.43 1133.30 +- 326.80 2.89 +- 21.48 <13.60








(ppb or ppm) <0.21 ppb

9.82 ppb +- 3.36 ppb 2.44 ppb +- 1.48 ppb 0.18 ppb +- 1.09 ppb 36.61 ppm +- 10.56 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <189.80

<23.15

<38.21

<10.89

















(ppb or ppm) <15.37 ppb







<2.68 ppb











SNO+ CW83 Prep on 2021-06-21 by S.H. 5.3 g 6.922 210702 Jul 2, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant Blank Assay For Blank Assay completed on 2021-06-18


Jul 9, 2021 (mBq/kg) <7.49

484.30 +- 145.10 <2.71

<10.27

<1345.00

<73.54

14.40 +- 28.83






(ppb or ppm) <0.61 ppb

39.23 ppb +- 11.75 ppb <4.77 ppb

<2.53 ppb

<43.44 ppm














Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 1961.90 +- 923.10 <143.70

<22.62

<13.17

















(ppb or ppm) 158.91 ppb +- 74.77 ppb





<3.24 ppb











SNO+ CW84 Prep on 2021-09-20 by S.R. 14.8 g 33.383 210924
211001
211004		 Sep 24, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant PSUP Assay For PSUP Assay completed on 2021-09-17


Oct 29, 2021 (mBq/kg) 46.83 +- 3.34 <25.78

<1.20

11.12 +- 2.70 779.95 +- 142.80 <28.00

<4.04








(ppb or ppm) 3.79 ppb +- 0.27 ppb <2.09 ppb

<2.11 ppb

2.74 ppb +- 0.66 ppb 25.19 ppm +- 4.61 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 1659.00 +- 159.30 6.78 +- 16.37 <3.80

16.06 +- 4.72















(ppb or ppm) 134.38 ppb +- 12.9 ppb





3.95 ppb +- 1.16 ppb









SNO+ CW85 Prep on 2022-02-07 by Chanel and Jessica 7.0 g 12.976 220304
220311		 Mar 4, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant PSUP Assay For PSUP assay completed on 2202-02-04


Mar 18, 2022 (mBq/kg) <9.18

<48.63

2.14 +- 1.34 <12.30

1732.40 +- 406.30 <57.53

<12.85








(ppb or ppm) <0.74 ppb

<3.94 ppb

3.77 ppb +- 2.35 ppb <3.03 ppb

55.96 ppm +- 13.12 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 2359.40 +- 383.50 <55.12

<17.06

19.59 +- 13.43















(ppb or ppm) 191.11 ppb +- 31.06 ppb





4.82 ppb +- 3.3 ppb









SNO+ CW86 Prep on 2022-02-28 by Chanel and Jessica 10.0 g 13.813 220318 Mar 18, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant Blank Assay For Blank assay completed on 2202-02-25


Apr 1, 2022 (mBq/kg) <3.94

<47.06

<2.20

4.53 +- 4.50 829.44 +- 240.30 <38.67

<5.94








(ppb or ppm) <0.32 ppb

<3.81 ppb

<3.87 ppb

1.11 ppb +- 1.11 ppb 26.79 ppm +- 7.76 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <160.20

38.83 +- 30.28 <7.82

14.23 +- 9.50















(ppb or ppm) <12.98 ppb







3.5 ppb +- 2.34 ppb









SNO+ CW87 Prep on 2022-06-08 by Jessica 12.2 g 12.220 220628
220701
220707
22070701
22070706		 Jun 28, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant UPW Plant Assay For UPW Plant assay completed on 2202-06-03


Jul 12, 2022 (mBq/kg) 8.19 +- 4.02 <28.48

<1.24

5.81 +- 4.10 1128.60 +- 253.00 <33.23

<6.07








(ppb or ppm) 0.66 ppb +- 0.33 ppb <2.31 ppb

<2.18 ppb

1.43 ppb +- 1.01 ppb 36.45 ppm +- 8.17 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 61.25 +- 196.10 40.48 +- 25.71 <2.87

20.79 +- 8.27















(ppb or ppm) 4.96 ppb +- 15.88 ppb





5.11 ppb +- 2.04 ppb









SNO+ CW88 Prep on 2022-06-09 by Chanel 12.3 g 12.724 220615
220621		 Jun 15, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant Blank Assay For Blank assay completed on 2202-06-08


Jun 28, 2022 (mBq/kg) 3.12 +- 3.84 <18.81

0.64 +- 0.77 6.79 +- 4.15 1323.10 +- 263.60 <34.67

<4.71








(ppb or ppm) 0.25 ppb +- 0.31 ppb <1.52 ppb

1.13 ppb +- 1.36 ppb 1.67 ppb +- 1.02 ppb 42.74 ppm +- 8.51 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <173.20

<34.48

<9.33

<14.32

















(ppb or ppm) <14.03 ppb







<3.52 ppb











SNO+ CW89 Prep on 2023-10-18 by Sharayah/Sahima 9.29 g 20.442 231026
23102601
231028
231029
231030
231031
231101
231102
231103		 Oct 26, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant Blank Assay For Blank assay completed on 2023-10-17

Nov 16, 2023 (mBq/kg) <4.44

<28.97

0.38 +- 0.81 6.09 +- 4.51 105.54 +- 164.70 <44.29

<5.75







(ppb or ppm) <0.36 ppb

<2.35 ppb

0.67 ppb +- 1.42 ppb 1.5 ppb +- 1.11 ppb 3.41 ppm +- 5.32 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <314.50

<53.13

<10.45

20.80 +- 8.77















(ppb or ppm) <25.47 ppb







5.12 ppb +- 2.16 ppb









SNO+ CW90 Prep on 2023-10-30 by Sahima 12.1 g 12.752 231116 Nov 16, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant UG UPW Water System For UG UPW assay completed on 2023-10-27


Nov 29, 2023 (mBq/kg) <3.81

<26.83

<1.32

8.86 +- 4.32 471.24 +- 183.20 <31.58

<7.21








(ppb or ppm) <0.31 ppb

<2.17 ppb

<2.32 ppb

2.18 ppb +- 1.06 ppb 15.22 ppm +- 5.92 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 1696.80 +- 208.40 <61.60

<7.38

12.05 +- 7.88















(ppb or ppm) 137.44 ppb +- 16.88 ppb





2.96 ppb +- 1.94 ppb









SNO+ CW91 Prep on 2024-02-09 by D.C. 7.934 g 7.778 240328 Mar 28, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Dowex after EDTA elution For Assay completed on 2024-02-09


Apr 5, 2024 (mBq/kg) <4.22

<59.24

<1.87

<13.46

606.42 +- 349.40 <45.96

<20.75








(ppb or ppm) <0.34 ppb

<4.8 ppb

<3.29 ppb

<3.31 ppb

19.59 ppm +- 11.29 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 9109.20 +- 651.60 <48.09

<14.81

21.46 +- 13.99















(ppb or ppm) 737.85 ppb +- 52.78 ppb





5.28 ppb +- 3.44 ppb









SNO+ CW92 Prep on 2024-02-09 by Sahima and Sharayah 13.6 g 5.870 240405 Apr 4, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Supernatant UG UPW Water System For UG UPW assay completed on 2024-02-09


Apr 11, 2024 (mBq/kg) <7.96

<59.09

1.70 +- 1.23 <8.70

683.90 +- 273.70 <41.76

<11.91








(ppb or ppm) <0.64 ppb

<4.79 ppb

2.98 ppb +- 2.17 ppb <2.14 ppb

22.09 ppm +- 8.84 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 2304.50 +- 279.80 <57.47

<3.57

<21.49

















(ppb or ppm) 186.66 ppb +- 22.66 ppb





<5.29 ppb











PICO Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
PICO CW01 Small Diameter Piezos from December Production 10.6 g 15.532 140107
14010701
14010703
14010801
14010802
14010804
140115		 Jan 7, 2014 (mBq/kg) 1360.17 +- 68.28 5.35 +- 45.45 21.55 +- 3.76 242.89 +- 28.02 141.82 +- 82.07 <63.85

1783.02 +- 103.77
Piezo Acoustic Sensors
Also PICO 3
Jan 23, 2014 (ppb or ppm) 110.17 ppb +- 5.53 ppb 0.43 ppb +- 3.68 ppb 37.94 ppb +- 6.62 ppb 59.75 ppb +- 6.89 ppb 34.89 ppb +- 20.19 ppb








PICO CW02
14.8 g 8.528 140617 Jun 17, 2014 (mBq/kg) 30.86 +- 25.73 <15.05

4.44 +- 5.90 126.66 +- 20.01 17.82 +- 44.79 <118.15

513.51 +- 60.81
Small Diameter Piezo Acoustic Sensors (11) May/June 2014 Production (6/16/2014) Also PICO 10

Jun 26, 2014 (ppb or ppm) 2.50 ppb +- 2.08 ppb 1.22 ppb

7.82 ppb +- 10.39 ppb 31.26 ppb +- 4.92 ppb 4.38 ppb +- 11.02 ppb








PICO CW03 These piezos are unelectroded 10.6 g 5.958 140626 Jun 26, 2014 (mBq/kg) <49.93

2.83 +- 17.90 6.13 +- 8.26 10.11 +- 18.75 119.25 +- 74.03 <331.87

528.30 +- 84.91
Small Diameter Piezo Acoustic Sensors (8) May/June 2014 Production (6/16/2014)


Jul 2, 2014 (ppb or ppm) <3.48 ppb

0.23 ppb +- 1.45 ppb 10.79 ppb +- 14.53 ppb 2.49 ppb +- 4.61 ppb 29.34 ppb +- 18.21 ppb








PICO CW04
4.0 g 5.924 140702 Jul 2, 2014 (mBq/kg) 111.38 +- 78.54 32.69 +- 41.60 25.51 +- 12.07 45.78 +- 49.62 25.96 +- 155.38 <632.00

75.00 +- 125.00
Distilled LAB



Jul 8, 2014 (ppb or ppm) 9.02 ppb +- 6.36 ppb 2.65 ppb +- 3.37 ppb 44.89 ppb +- 21.34 ppb 11.26 ppb +- 12.21 ppb 6.39 ppb +- 38.22 ppb








PICO CW05 Blue 19.2 g 2.861 150514 May 14, 2015 (mBq/kg) 781.91 +- 103.06 867.09 +- 95.40 80.07 +- 16.50 2870.07 +- 173.14 1325.25 +- 166.50 <453.85

703.28 +- 180.47
PVC-Clad Wire (Hook up wire) Alpha Wire


May 17, 2015 (ppb or ppm) 63.34 ppb +- 8.35 ppb 70.24 ppb +- 7.72 ppb 140.93 ppb +- 29.04 ppb 706.04 ppb +- 42.59 ppb 326.01 ppb +- 40.96 ppb


56.97 ppb +- 14.62 ppb


PICO CW06 White 19.3 g 2.979 150517 May 17, 2015 (mBq/kg) 696.45 +- 94.88 869.44 +- 98.12 95.459 +- 16.574 2896.71 +- 178.27 1511.97 +- 171.32 <599.22

758.17 +- 177.67
PVC-Clad Wire (Hook up wire) Alpha Wire


May 20, 2015 (ppb or ppm) 56.41 ppb +- 7.69 ppb 70.42 ppb +- 7.95 ppb 168.01 ppb +- 29.17 ppb 712.59 ppb +- 43.85 ppb 371.95 ppb +- 42.15 ppb


61.49 ppb +- 14.39 ppb


PICO CW07 Orange 20.0 g 2.049 150520 May 20, 2015 (mBq/kg) 910.61 +- 108.62 644.84 +- 104.65 75.16 +- 18.82 2869.19 +- 185.90 1609.232 +- 202.302 <725.80

1236.80 +- 214.70
PVC-Clad Wire (Hook up wire) Alpha Wire


May 22, 2015 (ppb or ppm) 73.76 ppb +- 8.80 ppb 52.23 ppb +- 8.58 ppb 132.27 ppb +- 33.12 ppb 705.82 ppb +- 45.73 ppb 395.87 ppb +- 49.77 ppb


100.18 ppb +- 17.39 ppb


PICO CW08 Red 18.9 g 2.826 150522 May 22, 2015 (mBq/kg) 650.44 +- 83.78 608.42 +- 69.84 65.69 +- 13.53 1288.59 +- 98.35 596.94 +- 118.58 <645.29

1521.53 +- 182.59
PVC-Clad Wire (Hook up wire) Alpha Wire


May 25, 2015 (ppb or ppm) 52.69 ppb +- 6.79 ppb 49.28 ppb +- 5.66 ppb 115.61 ppb +- 23.82 ppb 316.99 ppb +- 24.20 ppb 146.85 ppb +- 29.17 ppb


123.24 ppb +- 14.79 ppb


PICO CW09 Green 19.1 g 2.000 150525
150527		 May 25, 2015 (mBq/kg) 1118.86 +- 134.80 990.36 +- 118.13 176.697 +- 23.426 2540.17 +- 178.12 771.02 +- 185.84 <778.59

2101.47 +- 274.97
PVC-Clad Wire (Hook up wire) Alpha Wire


May 27, 2015 (ppb or ppm) 90.63 ppb +- 10.92 ppb 80.22 ppb +- 9.57 ppb 310.99 ppb +- 41.23 ppb 624.88 ppb +- 43.82 ppb 189.67 ppb +- 45.72 ppb


170.22 ppb +- 22.27 ppb


PICO CW10 Black 19.0 g 1.979 15052701 May 27, 2015 (mBq/kg) 885.12 +- 121.20 956.87 +- 111.45 94.44 +- 19.79 2675.29 +- 180.31 1273.23 +- 194.82 <790.95

1561.05 +- 232.79
PVC-Clad Wire (Hook up wire) Alpha Wire


May 29, 2015 (ppb or ppm) 71.70 ppb +- 9.82 ppb 77.51 ppb +- 9.03 ppb 166.21 ppb +- 34.82 ppb 658.12 ppb +- 44.36 ppb 313.22 ppb +- 47.93 ppb


126.44 ppb +- 18.86 ppb



Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
PICO CW11 Brown 19.0 g 9.847 150529
150530		 May 29, 2015 (mBq/kg) 668.42 +- 53.16 778.88 +- 67.50 82.64 +- 9.59 2454.28 +- 134.92 1311.82 +- 98.36 <229.05

925.21 +- 107.26
PVC-Clad Wire (Hook up wire) Alpha Wire


Jun 8, 2015 (ppb or ppm) 54.14 ppb +- 4.31 ppb 62.85 ppb +- 5.47 ppb 145.44 ppb +- 16.88 ppb 603.875 ppb +- 33.19 ppb 322.71 ppb +- 24.20 ppb


74.94 ppb +- 8.69 ppb


PICO CW12
3.3 g 4.069 150608 Jun 8, 2015 (mBq/kg) 90.69 +- 114.30 <77.89

<30.00

96.05 +- 65.48 <386.36

<2556.67

2428.49 +- 362.12
Cable Inner Wires ECOGen Cables by Alpha Wire


Jun 12, 2015 (ppb or ppm) 7.35 ppb +- 9.26 ppb <6.31 ppb

<52.80 ppb

23.63 ppb +- 16.11 ppb <95.05 ppb




196.71 ppb +- 29.33 ppb


PICO CW13 Grey plastic-type outer shell 3.6 g 4.883 150612 Jun 12, 2015 (mBq/kg) 1624.35 +- 236.32 995.10 +- 171.71 116.81 +- 32.07 2634.55 +- 233.45 1577.03 +- 309.68 440.83 +- 1217.50 1845.56 +- 393.89
Cable Outer Shield ECOGen Cables by Alpha Wire


Jun 17, 2015 (ppb or ppm) 131.57 ppb +- 19.14 ppb 80.60 ppb +- 13.91 ppb 205.60 ppb +- 56.45 ppb 648.10 ppb +- 57.43 ppb 387.95 ppb +- 76.18 ppb


149.49 ppb +- 31.91 ppb


PICO CW14 Metal Insulator / Grounding Jacket 5.4 g 5.542 150617
150618
15061801
150619		 Jun 17, 2015 (mBq/kg) 32.00 +- 69.06 487.74 +- 71.16 54.83 +- 13.48 99.56 +- 39.39 113.11 +- 90.77 <1142..04

938.89 +- 179.07
Cable Outer insulator ECOGen Cables by Alpha Wire


Jun 23, 2015 (ppb or ppm) 2.59 ppb +- 5.59 ppb 39.51 ppb +- 5.76 ppb 96.50 ppb +- 23.73 ppb 24.49 ppb +- 9.69 ppb 27.82 ppb +- 22.33 ppb


76.05 ppb +- 14.51 ppb


PICO CW15
4.6 g 4.861 150623 Jun 23, 2015 (mBq/kg) 252.39 +- 86.21 60.32 +- 49.54 31.194 +- 14.290 184.43 +- 58.69 25.09 +- 117.58 <1531.52

516.09 +- 171.52
Thick Diameter Cable Inner Wire ECOGen Cables by Alpha Wire


Jun 28, 2015 (ppb or ppm) 20.44 ppb +- 6.98 ppb 4.89 ppb +- 4.01 ppb 54.90 ppb +- 25.12 ppb 45.37 ppb +- 14.44 ppb 6.17 ppb
28.92 ppb


41.80 ppb +- 13.89 ppb


PICO CW16
6.1 g 6.000 150702 Jul 2, 2015 (mBq/kg) 24.13 +- 48.57 171.68 +- 45.23 31.67 +- 10.48 <48.69

<116.72

<932.46

7896.07 +- 535.57
Thick Diameter Cable Outer insulator ECOGen Cables by Alpha Wire


Jul 8, 2015 (ppb or ppm) 1.96 ppb +- 3.93 ppb 13.91 ppb +- 3.66 ppb 55.73 ppb +- 18.45 ppb <11.98 ppb

<28.71 ppb




639.58 ppb +- 43.38 ppb


PICO CW17
15.8 g 3.875 150628 Jun 28, 2015 (mBq/kg) 151.77 +- 38.00 68.36 +- 25.23 20.28 +- 4.41 94.18 +- 21.74 <258.92

<561.14

639.18 +- 101.58
Thick Diameter Cable Outer Shield ECOGen Cables by Alpha Wire


Jul 2, 2015 (ppb or ppm) 12.29 ppb +- 3.10 ppb 5.54 ppb +- 2.04 ppb 35.69 ppb +- 7.76 ppb 23.17 ppb +- 5.35 ppb <63.70 ppb




51.77 ppb +- 8.23 ppb


PICO CW18 Part No. A06000320625S 5.3 g 6.910 160317
16031701		 Mar 17, 2016 (mBq/kg) 33.43 +- 48.23 8.35 +- 28.50 16.44 +- 8.95 <47.17

10.52 +- 81.17 <929.62

41.13 +- 101.70
Springs
 Lot No. 1076186
Associated Spring Raymond


Mar 24, 2016 (ppb or ppm) 2.71 ppb +- 3.91 ppb 0.68 ppb +- 2.31 ppb 28.93 ppb +- 15.75 ppb <11.60 ppb

2.59 ppb +- 19.97 ppb


3.33 ppb +- 8.24 ppb


PICO CW19 Lot No.: 286245-6
8-32 x ½ washer face thumb screw		 17.10 g 6.924 160324 Mar 24, 2016 (mBq/kg) <13.18

13.50 +- 9.73 1.18 +- 2.51 <9.94

52.96 +- 26.09 <244.74

67.05 +- 29.83
Thumb Screws Richard Manno Company


Mar 31, 2016 (ppb or ppm) <1.07 ppb

1.09 ppb +- 0.79 ppb 2.08 ppb +- 4.41 ppb <2.45 ppb

13.03 ppb +- 6.42 ppb


5.43 ppb +- 2.42 ppb


PICO CW20
0.5 g 12.794 160923
160930		 Sep 23, 2016 (mBq) 440.19 +- 405.63 118.15 +- 201.17 43.19 +- 62.33 <380.00

198.07 +- 567.44 <5240.00

1882.00 +- 716.00
Kapton



Oct 6, 2016 (ppb or ppm) 35.66 ppb +- 32.86 ppb 9.57 ppb +- 16.30 ppb 76.02 ppb +- 109.70 ppb <93.48 ppb

73.33 ppb +- 139.59 ppb


155.44 ppb +- 58.00 ppb



Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
PICO CW21
0.4 g 10.306 161006
161010		 Oct 6, 2016 (mBq/kg) <525.00

<289.41

23.505 +- 84.480 116.07 +- 337.23 <4210.00

<7052.50

1705.00 +- 962.50
Liquid Crystal Polymer



Oct 17, 2016 (ppb or ppm) <42.53 ppb

<23.44 ppb

41.37 ppb +- 148.69 ppb 28.55 ppb +- 82.96 ppb <1.04 ppm




138.11 ppb +- 77.96 ppb


PICO CW22 Jar to Flange Seal 3.2 g 12.768 170125 Jan 25, 2017 (mBq/kg) 54.99 +- 52.65 <29.15

<12.19

10.63 +- 42.42 100.93 +- 92.18 <820.31

208.75 +- 109.69
PTFE Gasket Hennig Gaskets and Seals


Feb 7, 2017 (ppb or ppm) 4.45 ppb +- 4.27 ppb <2.36 ppb

<21.45 ppb

2.62 ppb +- 10.44 ppb 24.83 ppb +- 22.67 ppb


16.91 ppb +- 8.89 ppb


PICO CW23 PN: 1416-1701-1-ND 0.4 g 21.438 170315
170316		 Mar 15, 2017 (mBq/kg) 3109.83 +- 648.12 1076.15 +- 348.83 98.76 +- 83.90 <510.00

1556.22 +- 732.27 <3325.00

2817.50 +- 920.00
LED Luxeon Rebel Deep Red SMD Digi-Key 10 LEDs

Apr 6, 2017 (ppb or ppm) 251.90 ppb +- 54.50 ppb 87.17 ppb +- 28.26 ppb 173.81 ppb +- 147.66 ppb <125.46 ppb

382.83 ppb +- 180.14 ppb


227.41 ppb +- 74.52 ppb


PICO CW24 PN: XPEPHR-L1-0000-00801CT-ND 0.4 g 20.826 170406
170413		 Apr 6, 2017 (mBq/kg) 404.18 +- 442.55 684.49 +- 309.95 200.35 +- 80.58 <442.50

126.36 +- 625.64 <3962.50

2650.00 +- 820.00
LED Photo Red 650NM 700MA Digi-Key 10 LEDs

Apr 27, 2017 (ppb or ppm) 32.74 ppb +- 35.85 ppb 55.44 ppb +- 25.11 ppb 352.62 ppb +- 141.83 ppb <108.86 ppb

31.08 ppb +- 153.91 ppb


214.65 ppb +- 66.42 ppb


PICO CW25 NB PZT Piezeos 5mm diameter and 1 mm thick 1.8 g 13.438 170427
170429
170502
170506		 Apr 27, 2017 (mBq/kg) 465.90 +- 159.81 <74.44

23.81 +- 21.08 80.90 +- 84.88 <422.22

<1383.89

1286.11 +- 322.78
Piezo Acoustic Sensors April 2017 Batch,
12 piezos


May 11, 2017 (ppb or ppm) 37.74 ppb +- 12.94 ppb <6.03 ppb

41.90 ppb +- 37.10 ppb 19.90 ppb +- 20.88 ppb <103.87 ppb




104.18 ppb +- 26.15 ppb


PICO CW26 NB PZT Piezeos
3 mm diameter and 8.7 mm tall		 10.6 g 10.722 170525
170601		 May 25, 2017 (mBq/kg) 6.32 +- 22.64 <18.68

3.83 +- 4.39 <15.66

32.29 +- 40.04 57.08 +- 187.08 278.02 +- 67.74
Piezo Acoustic Sensors April 2017 Batch, 17 piezos


Jun 5, 2017 (ppb or ppm) 0.51 ppb +- 1.83 ppb <1.51 ppb

6.74 ppb +- 7.72 ppb <3.85 ppb

7.94 ppb +- 9.85 ppb


22.52 ppb +- 5.49 ppb


PICO CW27 NB PZT Piezeos 5mm diameter and 1 mm thick 4.1 g 13.674 170627 Jun 27, 2017 (mBq/kg) 122.02 +- 58.29 <31.46

8.25 +- 8.56 67.25 +- 35.55 98.694 +- 81.869 <596.83

528.05 +- 114.63
Piezo Acoustic Sensors June 2017 Batch
25 piezos


Jul 11, 2017 (ppb or ppm) 9.88 ppb +- 2.72 ppb <2.55 ppb

14.52 ppb +- 15.06 ppb 16.54 ppb +- 8.75 ppb 24.28 ppb +- 20.14 ppb


42.77 ppb +- 9.29 ppb


PICO CW28 3M Scotchlite 8725 24.5 g 5.431 170809
170814		 Aug 9, 2017 (mBq/kg) 1409.54 +- 93.88 0.66 +- 51.73 97.05 +- 13.42 599.54 +- 51.56 561.21 +- 112.15 <221.02

120.65 +- 145.76
Reflector Material 1” wide


Aug 15, 2017 (ppb or ppm) 114.17 ppb +- 7.60 ppb 0.05 ppb +- 4.19 ppb 170.80 ppb +- 23.61 ppb 147.49 ppb +- 12.68 ppb 138.06 ppb +- 27.59 ppb


9.77 ppb +- 11.81 ppb



Additional Activities:

(mBq/kg)

40K: 131.61 +- 37.82
















(ppb or ppm)


4.25 ppm +- 1.22 ppm













PICO CW29 3M Scotchlite 8830 14.7 g 21.276 170824
17082401
170826
17082601
17062602
170901
170904		 Aug 24, 2017 (mBq/kg) 815.49 +- 49.32 69.30 +- 26.20 54.61 +- 6.55 300.76 +- 26.26 248.70 +- 52.83 41.63 +- 130.27 327.21 +- 79.80
Reflector Material Also Counted as PICO 70

Sep 15, 2017 (ppb or ppm) 66.06 ppb +- 4.00 ppb 5.61 ppb +- 2.12 ppb 96.11 ppb +- 11.53 ppb 73.99 ppb +- 6.46 ppb 61.18 ppb +- 13.00 ppb


26.50 ppb +- 6.46 ppb



Additional Activities:

(mBq/kg)

40K: 342.89 +- 85.28
















(ppb or ppm)


11.08 ppm +- 2.75 ppm













PICO CW30 NB PZT Piezeos 5mm diameter and 8.7 mm high
11.899 171020 Oct 20, 2017 (mBq/kg) 67.94 +- 17.80 17.53 +- 11.14 8.04 +- 2.92 19.14 +- 10.52 10.75 +- 24.65 <140.73

584.53 +- 58.27
Piezo Acoustic Sensors Sept 2017 Batch
11 piezos


Nov 1, 2017 (ppb or ppm) 5.50 ppb +- 1.44 ppb 1.42 ppb +- 0.90 ppb 14.16 ppb +- 5.14 ppb 4.71 ppb +- 2.60 ppb 2.65 ppb +- 6.06 ppb


47.35 ppb +- 4.72 ppb



Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
PICO CW31 Solder No-Clean 18 AWG 63/37 1 LB
Part No: KE1402-ND
Mfg PN: 24-6337-8814		 15.0 g 4.950 180222 Feb 22, 2018 (mBq/kg) <38.93

<67.93

,22.13

<31.07

<101.60

<461.00

22246.53 +- 1213.80
Solder Wire Kester Solder (vendor Digi-Key)


Feb 27, 2018 (ppb or ppm) <3.15 ppb

<5.50 ppb

<38.96 ppb

<7.64 ppb

<24.99 ppb




1.80 ppm +- 0.10 ppm


PICO CW32 Wire Bus Bar 16AWG
Part No.: 295 SV005-ND		 14.8 g 7.810 180227
080305		 Feb 27, 2018 (mBq/kg) 14.18 +- 16.09 12.08 +- 13.85 <4.05

14.85 +- 11.34 <101.62

<252.91

2998.58 +- 194.60
Tin coated copper wire Alpha Wire (vendor Digi-Key)


Mar 7, 2018 (ppb or ppm) 1.15 ppb +- 1.30 ppb 0.98 ppb +- 1.12 ppb <7.14 ppb

3.65 ppb +- 2.79 ppb <25.00 ppb




242.89 ppb +- 15.76 ppb


PICO CW33 304 Pieces of Fiducial Marks for PICO 40L 0.122 g 14.690 180628
180629
180710		 Jun 28, 2018 (mBq/kg) 804.57 +- 1894.44 <1270.49

191.347 +- 268.835 2928.20 +- 1220.77 <7344.26

<13122.95

1680.33 +- 2713.12
Fiducial Marks
401 ug per mark

Jul 13, 2018 (ppb or ppm) 65.17 ppb +- 153.45 ppb <102.91 ppb

336.77 ppb +- 473.15 ppb 720.34 ppb +- 300.31 ppb <1806.69 ppb




136.11 ppb +- 219.76 ppb


PICO CW34 To be used to suspend the copper coils and retro-reflector 14.1 g 14.622 180713
180717
180730
18073001		 Jul 13, 2018 (mBq/kg) 6.84 +- 23.20 13.26 +- 9.68 2.16 +- 2.98 <28.97

<34.89

<236.70

111.96 +- 29.83
316 Stainless Steel Bar McMaster Carr


Jul 30, 2018 (ppb or ppm) 0.55 ppb +- 1.88 ppb 1.07 ppb +- 0.78 ppb 3.81 ppb +- 5.24 ppb <7.13 ppb

<8.58 ppb




9.07 ppb +- 2.42 ppb


PICO CW35
52.3 g 26.050 18082801
180829
180830
180904
18090401
180905
180920		 Aug 28, 2018 (mBq/kg) 8.39 +- 3.87 4.15 +- 3.09 2.40 +- 0.81 <7.08

4.53 +- 6.56 <18.05

319.39 +- 21.44
Piezo Acoustic Sensors Batch: 2018-07-15
40 piezos		 1.3075 g / Piezo
Sep 25, 2018 (ppb or ppm) 0.68 ppb +- 0.31 ppb 0.34 ppb +- 0.25 ppb 4.22 ppb +- 1.43 ppb <1.74 ppb

1.11 ppb +- 1.61 ppb


25.87 ppb +- 1.74 ppb


PICO CW36
18.1 g 21.313 181113
181124		 Nov 13, 2018 (mBq/kg) 615.80 +- 41.17 <8.80

25.93 +- 4.17 114.40 +- 18.57 56.59 +- 32.33 80.80 +- 61.36 2121.20 +- 128.60
Piezo Acoustic Sensors Batch: 2018-11-04
14 piezos		 1.293 g / Piezo

Dec 5, 2018 (ppb or ppm) 49.88 ppb +- 3.33 ppb <0.71 ppb

45.64 ppb +- 7.34 ppb 28.14 ppb +- 4.57 ppb 13.92 ppb +- 7.95 ppb


171.82 ppb +- 10.42 ppb


PICO CW37
6.7g 14.348 190402
190413		 Apr 2, 2019 (mBq/kg) <50.00

<16.79

<7.16

<59.61

<53.12

<264.80

96.93 +- 67.03
Acetal Plastic Rod



Apr 18, 2019 (ppb or ppm) <4.05 ppb

<1.36 ppb

<12.6 ppb

<14.66 ppb

<13.07 ppb




7.85 ppb +- 5.43 ppb


PICO CW38 50 Piezos 69.3 g 14.677 190702 Jul 2, 2019 (mBq/kg) 15.16 +- 4.76 2.67 +- 3.58 3.59 +- 0.99 5.35 +- 4.10 <10.97

12.26 +- 15.23 269.92 +- 20.03
Piezo Acoustic Sensors June 2019 Batch 1.386 g / piezo

Jul 17, 2019 (ppb or ppm) 1.23 ppb +- 0.39 ppb 0.22 ppb +- 0.29 ppb 6.31 ppb +- 1.73 ppb 1.32 ppb +- 1.01 ppb <2.7 ppb




21.86 ppb +- 1.62 ppb


PICO CW39 Loctite/Henkel 3.0 g 7.750 220509 May 9, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Lead-free Solder Wire ID: C511 97SC 3C


May 17, 2022 (mBq/kg) <19.57

179.50 +- 215.30 6.80 +- 7.75 <25.84

352.10 +- 977.90 <138.60

<108.30



Diameter: 0.56 mm



(ppb or ppm) <1.59 ppb

14.54 ppb +- 17.44 ppb 11.96 ppb +- 13.64 ppb <6.36 ppb

11.37 ppm +- 31.59 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 15815.00 +- 1419.00 70.71 +- 114.10 <63.81

82.29 +- 67.84















(ppb or ppm) 1281.02 ppb +- 114.94 ppb





20.24 ppb +- 16.69 ppb










PICO CW40 Kester Solder (vendor Digi-Key) 5.8 g 13.618 220928
22100601
221012		 Sep 28, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Lead-free Solder Wire Sn: 95.5, Ag: 3.0, Cu: 0.4


Oct 14, 2022 (mBq/kg) 10.64 +- 8.98 230.60 +- 236.80 <9.37

<23.78

108.14 +- 108.60 <45.48

<10.81



24-7068-6403
Lot No: 02136567L



(ppb or ppm) 0.86 ppb +- 0.73 ppb 18.68 ppb +- 19.18 ppb <16.49 ppb

<5.85 ppb

3.49 ppm +- 3.51 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 375250.00 +- 21320.00 <82.19

<5.16

39.59 +- 15.96















(ppb or ppm) 30.4 ppm +- 1.73 ppm





9.74 ppb +- 3.93 ppb










PICO CW41 Exocor 65.7 g 13.566 221109
221121		 Nov 9, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
TIG Filler Rod Executive 316L


Nov 23, 2022 (mBq/kg) <2.65

<21.11

0.33 +- 0.27 10.65 +- 1.52 <23.15

<5.64

<1.26



2-36” Welding electrodes cut into 8 cm sections



(ppb or ppm) <0.21 ppb

<1.71 ppb

0.57 ppb +- 0.47 ppb 2.62 ppb +- 0.37 ppb <0.75 ppm















Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co












(mBq/kg) <356.90

6.55 +- 5.55 3.42 +- 1.05 5.23 +- 2.02 0.86 +- 0.68 2.54 +- 0.95









(ppb or ppm) <28.91 ppb







1.29 ppb +- 0.5 ppb









PICO CW42 Lincoln 71.3 g 6.841 221123
221128		 Nov 23, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
TIG Filler Rod 316L


Nov 30, 2022 (mBq/kg) <1.78

<25.37

0.92 +- 0.36 2.17 +- 1.56 115.33 +- 63.56 <7.68

<4.60



2-36” Welding electrodes cut into 8 cm sections



(ppb or ppm) <0.14 ppb

<2.05 ppb

1.62 ppb +- 0.64 ppb 0.53 ppb +- 0.38 ppb 3.73 ppm +- 2.05 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co












(mBq/kg) <951.70

<9.71

4.29 +- 2.30 9.20 +- 2.85 1.33 +- 0.81 2.40 +- 1.62









(ppb or ppm) <77.09 ppb







2.26 ppb +- 0.7 ppb









PICO CW43 Flux Coated 96.3 g 6.862 221130
221201		 Nov 30, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
TIG Filler Rod 316L


Dec 7, 2022 (mBq/kg) 14870.00 +- 330.60 40070.00 +- 1910.00 1051.00 +- 24.73 8635.00 +- 244.90 79438.00 +- 4206.00 <12.70

<38.73



2-36” Welding electrodes cut into 8 cm sections



(ppb or ppm) 1204.47 ppb +- 26.78 ppb 3245.67 ppb +- 154.71 ppb 1849.76 ppb +- 43.52 ppb 2124.21 ppb +- 60.25 ppb 2565.85 ppm +- 135.85 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co












(mBq/kg) 73510.00 +- 4452.00 <123.50

105.72 +- 34.27 12470.00 +- 319.20 <25.81

<15.37











(ppb or ppm) 5954.31 ppb +- 360.61 ppb





3067.62 ppb +- 78.52 ppb









PICO CW44 Exocor 97.1 g 14.578 230404 Apr 4, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
TIG Filler Rod Executive 316/316L


Apr 19, 2023 (mBq/kg) 3.54 +- 0.93 <27.13

0.38 +- 0.24 77.40 +- 1.14 <44.24

<6.56

<2.36



3-36” Welding filler rod cut into 8 cm sections



(ppb or ppm) 0.29 ppb +- 0.08 ppb <2.2 ppb

0.68 ppb +- 0.42 ppb 19.04 ppb +- 0.28 ppb <1.43 ppm















Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co












(mBq/kg) 223.30 +- 1570.00 <4.40

5.11 +- 1.54 6.77 +- 1.88 <0.75

1.15 +- 1.03









(ppb or ppm) 18.09 ppb +- 127.17 ppb





1.67 ppb +- 0.46 ppb









PICO CW45 PICO Heating Element Circuit Boards 2.2 g 13.742 230517 May 17, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Polyimide Circuit Boards



May 31, 2023 (mBq/kg) <16.91

<258.90

4.85 +- 4.70 15.34 +- 22.89 12716.00 +- 1914.00 <193.80

<40.27








(ppb or ppm) <1.37 ppb

<20.97 ppb

8.53 ppb +- 8.27 ppb 3.77 ppb +- 5.63 ppb 410.73 ppm +- 61.82 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <1587.00

<124.00

<24.31

<95.26

















(ppb or ppm) <128.55 ppb







<23.43 ppb











PICO CW46 SAC305 No-Clean T3 Solder Paste 35.721 g 7.956 230719 Jul 19, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Chip Quick Solder Paste Type: SMD291SNL50T3


Jul 27, 2023 (mBq/kg) <7.47

<220.60

<2.87

8.06 +- 6.14 217.09 +- 106.90 <13.26

<3.15



Lot No.: 520005-19986



(ppb or ppm) <0.61 ppb

<17.87 ppb

<5.05 ppb

1.98 ppb +- 1.51 ppb 7.01 ppm +- 3.45 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 535680.00 +- 32320.00 <25.21

<4.50

8.49 +- 4.47















(ppb or ppm) 43.39 ppm +- 2.62 ppm





2.09 ppb +- 1.1 ppb









PICO CW47 T4 – Halogen & Pb Free 22.90 g 27.113 231228
240105
240117		 Dec 28, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Loctite Solder Paste PN: GC 10 SAC305T4 885V 52K


Jan 25, 2024 (mBq/kg) <2.99

<140.70

2.57 +- 1.61 <5.70

<177.30

<18.55

<5.80



Batch No: A733040271



(ppb or ppm) <0.24 ppb

<11.4 ppb

4.52 ppb +- 2.82 ppb <1.4 ppb

<5.73 ppm















Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 251960.00 +- 14500.00 <29.52

<2.24

6.49 +- 3.78















(ppb or ppm) 20.41 ppm +- 1.17 ppm





1.6 ppb +- 0.93 ppb









PICO CW48 Type: EP21TDCS-LO Part A 5.971 g 16.479 240226
240313		 Feb 26, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
MasterBond Epxoy Part A Lot: 225967


Mar 15, 2024 (mBq/kg) <8.96

<266.70

4.39 +- 2.12 3.69 +- 9.17 797.35 +- 407.90 <64.07

<24.95








(ppb or ppm) <0.73 ppb

<21.6 ppb

7.72 ppb +- 3.73 ppb 0.91 ppb +- 2.26 ppb 25.75 ppm +- 13.18 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <9206.00

<112.80

<10.88

38.57 +- 16.40















(ppb or ppm) <745.69 ppb







9.49 ppb +- 4.03 ppb









PICO CW49 Type: EP21TDCS-LO Part B 6.900 g 12.657 230315
23031801		 Mar 15, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
MasterBond Epxoy Part B Lot: 225967


Mar 28, 2024 (mBq/kg) <13.84

<138.70

<2.97

<23.88

639.33 +- 371.70 <62.81

<18.71








(ppb or ppm) <1.12 ppb

<11.23 ppb

<5.23 ppb

<5.87 ppb

20.65 ppm +- 12.01 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 2161.70 +- 7968.00 33.31 +- 45.04 <19.84

<36.37

















(ppb or ppm) 175.1 ppb +- 645.41 ppb





<8.95 ppb











PICO CW50 Type: TMP1826DGKR 0.253 g 13.467 240411
240419
240422		 Apr 11, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Texas Instruments Temperature Sensors One-Wire temperature sensors


Apr 25, 2024 (mBq/kg) <129.40

<1935.00

32.21 +- 36.20 <251.00

165.01 +- 9182.00 <1703.00

379.20 +- 388.60

10 units



(ppb or ppm) <10.48 ppb

<156.74 ppb

56.69 ppb +- 63.71 ppb <61.75 ppb

5.33 ppm +- 296.58 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <11930.00

<2127.00

<485.50

757.20 +- 385.70















(ppb or ppm) <0.97 ppm







186.27 ppb +- 94.88 ppb









DAMIC Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
DAMIC CW01 Epotek 301-2FL two-part epoxy 4.5 g 9.042 140318 Mar 18, 2014 (mBq/kg) 1.50 +- 50.24 11.11 +- 31.43 13.29 +- 9.25 24.47 +- 43.98 <63.49

<496.84

<269.47


Epoxy Epoxy Technology, Billerica, Mass, USA Also DAMIC 7

Mar 27, 2014 (ppb or ppm) 0.12 ppb +- 4.07 ppb 0.90 ppb +- 2.45 ppb 23.39 ppb +- 16.28 ppb 6.02 ppb +- 10.82 ppb <15.62 ppb










DAMIC CW02 Ametek Engineered Materials SDN BHD 11.6 g 13.575 190513
180523
19052301
190527		 May 13, 2019 (mBq/kg) 5.24 +- 19.83 240.90 +- 31.40 24.70 +- 5.17 205.90 +- 30.81 55.94 +- 38.67 <161.40

92.46 +- 50.45 40K: <9865.00
Aluminum Rod (with 1% Silicon)



May 27, 2019 (ppb or ppm) 0.42 ppb +- 1.61 ppb 19.51 ppb +- 2.54 ppb 43.47 ppb +- 9.1 ppb 50.65 ppb +- 7.58 ppb 13.76 ppb +- 9.51 ppb


7.49 ppb +- 4.09 ppb
<318.64 ppm
DEAP Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
DEAP CW01 Prepared On: 140904 3.1 g 6.847 140908 Sep 8, 2014 (mBq/kg) 38.99 +/- 92.99 <55.47

57.941 +- 27.941 354.31 +- 64.13 49.06 +- 139.04 <969.36

419.36 +- 193.55
Acrylic Vaporization Sample



Sep 15, 2014
3.16 ppb +- 7.69 ppb <4.49 ppb

101.98 ppb +- 49.18 ppb 87.16 ppb +- 15.78 ppb 12.07 ppb +- 34.20 ppb








DEAP CW02 Prepared On: 140826 0.3 g 21.535 150708
150729
17072905		 Jul 8, 2015 (mBq/kg) <616.67

466.18 +- 288.16 <93.33

196.91 +- 390.32 1497.00 +- 797.65 <5106.67

22833.33 +- 1986.67
Acrylic Vaporization Sample



Jul 30, 2015 (ppb or ppm) <49.85 ppb

37.76 ppb +- 23.34 ppb <164.27 ppb

48.44 ppb +- 96.02 ppb 368.26 ppb +- 196.22 ppb


1.85 ppm +- 0.16 ppm


DEAP CW03 Solder used for 22Na source encapsulation 1.4 g 8.083 151028 Oct 28, 2015 (mBq/kg) <366.43

393.36 +- 418.39 <69.29

<174.29

547.94 +- 599.52 <2582.14

152650.00 +- 8272.86
Solder



Nov 5, 2015 (ppb or ppm) <29.68 ppb

31.86 ppb +- 33.89 ppb <121.94 ppb

<42.87 ppb

134.79 ppb +- 147.48 ppb


12.36 ppm +- 0.67 ppm


DEAP CW04 Foil is 0.0015” thick 1.5 g 32.097 151115
151125
151209
151212
15121201
151217		 Nov 15, 2015 (mBq/kg) 164.23 +- 92.80 <50.89

7.09 +- 13.60 <117.86

<708.86

<539.29

513.57 +- 168.57
Copper Foil for 22Na Inner Encapsulation


Dec 18, 2015 (ppb or ppm) 13.30 ppb +- 7.52 ppb <4.14 ppb

12.47 ppb +- 23.93 ppb <28.99 ppb

<174.13 ppb




41.60 ppb +- 13.65 ppb


DEAP CW05 Prepared by Joshua Bonatt on 23 Aug 2016 --- 7.823 160915
160916
160919
190920		 Sep 15, 2016 (mBq) 0.38 +- 0.25 0.15 +- 0.24 0.075 +- 0.048 0.18 +- 0.16 <0.80

<3.74

627.97 +- 32.59
Acrylic Vaporization Sample Labelled “Efficiency 4”


Sep 23, 2016
























DEAP CW06 Prepared by Joshua Bonatt on 02 Nov 2016 --- 10.792 161103 161104 161111 16111101 Nov 3, 3016 (mBq) 0.28 +- 0.24 <0.098

0.117 +- 0.044 2.79 +- 0.30 0.21 +- 0.43 <2.33

426.29 +- 22.16
Acrylic Vaporization Sample Labelled “Efficiency 5”


Nov 14, 2016
























DEAP CW07 Prepared by Joshua Bonatt on 03 Nov 2016 --- 17.716 161114 Nov 14, 2016 (mBq) 0.25 +- 0.17 <0.124

0.051 +- 0.029 0.06 +- 0.12 0.12 +- 0.26 0.29 +- 1.21 6.26 +- 0.60
Acrylic Vaporization Sample Labelled ”Blank”


Dec 2, 2016
























DEAP CW08 Silver Zeolite: Ionex Type AG400 6.8 g 13.808 201204 Dec 4, 2020 (mBq/kg) 3783.00 +- 215.80 2066.00 +- 187.50 216.40 +- 11.78 3515.00 +- 213.20 1686.00 +- 182.50 <508.60

742.57 +- 163.20


Silver Zeolite Lot #: 1911002-0062
Molecular Products Inc.

The sample is also counted on the PGT detector as DEAP 138 Dec 18, 2020 (ppb or ppm) 306.42 ppb +- 17.48 ppb 167.35 ppb +- 15.19 ppb 380.86 ppb +- 20.73 ppb 864.69 ppb +- 52.45 ppb 414.76 ppb +- 44.9 ppb


60.15 ppb +- 13.22 ppb


EXO and nEXO Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
3 samples have been counted for nEXO, results are only available to EXO and nEXO collaboration members.
NEWS-G Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
NEWS-G CW01 400 micron UV/Vis Item No: 6-103288 0.8 g 19.756 170207
170214
170216		 Feb 7, 2017 (mBq/kg) 79.42 +- 209.19 <140.78

39.95 +- 35.08 <165.00

62.73 +- 297.70 296.25 +- 1361.25 1365.00 +- 413.75
In-Vacuum multimode fibre optic cable, Polymide Buffer Accu-Glass Products Inc., Valenca 79 pieces

Feb 27, 2017 (ppb or ppm) 6.43 ppb +- 16.94 ppb <11.40 ppb

70.31 ppb +- 61.74 ppb <40.59 ppb

15.43 ppb +- 73.24 ppb


110.57 ppb +- 33.51 ppb


NEWS-G CW02 400 micron UV/Vis Item No: 6-103289 1.4 g 15.750 170227 Feb 27, 2017 (mBq/kg) <134.29

<94.42

31.90 +- 20.32 <103.57

225.58 +- 195.72 <1510.71

750.71 +- 257.14
In-Vacuum multimode fibre optic cable, Aluminum Buffer Accu-Glass Products Inc., Valenca 79 pieces

Mar 15, 2017 (ppb or ppm) <10.88 ppb

<7.65 ppb

56.15 ppb +- 35.76 ppb <25.28 ppb

55.49 ppb +- 48.15 ppb


60.81 ppb +- 20.83 ppb


NEWS-G CW03 Arubis
C10100 –
Cu-OFE (OF-Cu)		 23.634 g 14.281 171005
171009		 Oct 5, 2017 (mBq) 0.20 +- 0.29 0.58 +- 0.40 0.07 +- 0.07 0.42 +- 0.28 <0.67

<1.06

11.70 +- 5.71 57Co:
Copper Rod Cleaned with 1% citric acid


Oct 20, 2017 (mBq/kg) 8.28 +- 12.32 24.64 +- 17.00 3.05 +- 2.86 17.80 +- 11.91 <28.39

<44.82

494.89 +- 241.47 0.041 mBq +- 0.027 mBq


Efficiencies are corrected for self-absorption by the copper using ANGLE4 (ppb or ppm) 0.67 ppb +- 1.00 ppb 2.00 ppb +- 1.38 ppb 5.37 ppb +- 5.03 ppb 4.39 ppb +- 2.93 ppb <6.98 ppb




40.09 ppb +- 19.56 ppb 1.74 mBq/kg +- 1.16 mBq/kg
NEWS-G CW04 Arubis
C10100 –
Cu-OFE (OF-Cu)		 23.724 g 15.475 171101
171106
17110601
17110602
171114
171115		 Nov 1, 2017 (mBq) <0.038

0.14 +- 0.36 0.063 +- 0.070 0.07 +- 0.28 0.22 +- 0.63 <0.63

8.52 +- 5.95 57Co:
Copper Rod Etched with 5% nitric acid

Nov 17, 2017 (mBq/kg) <1.62

5.90 +- 15.12 2.65 +- 2.97 2.90 +- 11.61 9.25 +- 26.38 <26.42

359.20 +- 250.67 0.033 mBq +- 0.027 mBq


Efficiencies are corrected for self-absorption by the copper using ANGLE4 (ppb or ppm) <0.13 ppb

0.48 ppb +- 1.23 ppb 4.66 ppb +- 5.22 ppb 0.71 ppb +- 2.86 ppb 2.28 ppb +- 6.49 ppb


29.10 ppb +- 20.30 ppb 1.37 mBq/kg +- 1.12 mBq/kg
NEWS-G 005 This sample is also being counted for CUTE 119.1 g 5.400 171201 Dec 1, 2017 (mBq) <3.72

71.50 +- 41.85 <4.58

2.78 +- 5.64 <5.32

<5.85

38865.30 +- 2067.18
Lead Rod from Marshield Manufactured by Marshield Ltd


Dec 6, 2017 (mBq/kg) <31.19

600.29 +- 351.40 <38.46

23.37 +- 47.36 <44.65

<49.08

326324.93 +- 17356.70



Cylinder is 34 mm x 10 mm Efficiencies are corrected for self-absorption by the lead using ANGLE4 (ppb or ppm) <2.53 ppb

48.62 ppb +- 28.46 ppb <67.69 ppb

5.75 ppb +- 11.65 ppb <10.98 ppb




26.43 ppm +- 1.41 ppm


NEWS-G CW06 Extraordinary Adsorbants 8.9 g 8.928 210426
210429		 Apr 26, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Silver Zeolite Ag-ETS-10


May 5, 2021 (mBq/kg) 987.90 +- 47.62 2022.00 +- 390.10 49.81 +- 8.22 601.40 +- 43.04 579760.00 +- 30440.00 <127.20

<147.20



(15 g 16-30 mesh)



(ppb or ppm) 80.02 ppb +- 3.86 ppb 163.78 ppb +- 31.6 ppb 87.67 ppb +- 14.46 ppb 147.94 ppb +- 10.59 ppb 1.87 % +- 0.1 %












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 3437.90 +- 2156.00 <174.70

<62.09

398.90 +- 76.70















(ppb or ppm) 278.47 ppb +- 174.64 ppb





98.13 ppb +- 18.87 ppb









NEWS-G CW07 Extraordinary Adsorbents 7.2 g 20.083 210709 Jul 9, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Sodium Zeolite Absorbent Na-ETS-10


Jul 29, 2021 (mBq/kg) 204.90 +- 32.13 1473.00 +- 390.10 15.45 +- 7.42 48.00 +- 31.02 5113706.08 + 14163.44 27.79 +- 57.30 178.20 +- 137.90

(16-30 Mesh)



(ppb or ppm) 16.6 ppb +- 2.6 ppb 119.31 ppb +- 31.6 ppb 27.19 ppb +- 13.07 ppb 11.81 ppb +- 7.63 ppb 16.52 % +- 0.05 %













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 5380.00 +- 2560.00 <162.60

<89.79

<74.57

















(ppb or ppm) 435.78 ppb +- 207.36 ppb





<18.34 ppb











CUTE Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
CUTE CW01 FA 412 Lead
(low activity lead)
1” x 5/8” d 		56.5 g 13.124 19011602
19011702
19012102		 Jan 16, 2019 (mBq/kg) 52.53 +- 24.60 <132.60

17.05 +- 16.33 17.91 +- 27.34 <59.10

<45.20

38748.00 +- 2903.00
Lead Cylinder Fonderie de Gentilly Efficiencies are corrected for self-absorption by the lead using ANGLE4
Jan 30, 2019 (ppb or ppm) 4.25 ppb +- 1.99 ppb <10.74 ppb

30.01 ppb +- 28.74 ppb 4.41 ppb +- 6.73 ppb <14.54 ppb




3.14 ppm +- 0.24 ppm


CUTE CW02 TFA 393 Lead
(very low activity lead)
1” x 5/8” d 		56.6 g 15.538 190213
190218		 Feb 13, 2019 (mBq/kg) 12.24 +- 20.30 <109.90

8.80 +- 10.88 33.81 +- 20.17 <59.77

<38.20

6294.80 +- 1107.00
Lead Cylinder Fonderie de Gentilly Efficiencies are corrected for self-absorption by the lead using ANGLE4
Mar 1, 2019 (ppb or ppm) 0.99 ppb +- 1.64 ppb <8.9 ppb

15.49 ppb +- 19.15 ppb 8.32 ppb +- 4.96 ppb <14.7 ppb




509.88 ppb +- 89.67 ppb


SENSEI Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
SENSEI CW01 TFA Lead
1” x 5/8” d 		56.5 g 10.754 190926 Sep 26, 2019 (mBq/kg) 47.14 +- 21.98 74.58 +- 116.60 <6.94

19.95 +- 25.22 42.26 +- 75.16 <47.38

4238.90 +- 999.80
Lead Cylinder Fonderie de Gentilly Efficiencies are corrected for self-absorption by the lead using ANGLE4
Oct 7, 2019 (ppb or ppm) 3.82 ppb +- 1.78 ppb 6.04 ppb +- 9.44 ppb <12.21 ppb

4.91 ppb +- 6.2 ppb 10.4 ppb +- 18.49 ppb


343.35 ppb +- 80.98 ppb


SBC Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
40K:
SBC CW01 SiPMs labelled 96 & 97 2.6 g 21.516 200302 Mar 2, 2020 (mBq/kg) 45060.00 +- 2019.00 28170.00 +- 2292.00 2328.00 +- 72.40 10940.00 +- 708.10 6009.00 +- 568.30 222.88 +- 593.60 20544.00 +- 611.80 68019.00 +- 49610.00
Hamamatsu VUV4 Quad SiPM (MEG-II Style)
(2 SiPMs)

Mar 24, 2020 (ppb or ppm) 3649.86 ppb +- 163.54 ppb 2281.77 ppb +- 185.65 ppb 4097.28 ppb +- 127.42 ppb 2691.24 ppb +- 174.19 ppb 1478.21 ppb +- 139.8 ppb


1664.06 ppb +- 49.56 ppb 2197.01 ppm +- 1602.4 ppm






(mBq / SiPM) 58.58 +- 2.62 36.62 +- 2.98 3.03 +- 0.09 14.22 +- 0.92 7.81 +- 0.74 0.29 +- 0.77 26.71 +- 0.80 88.42 +- 64.49
SBC CW02 PCB Size:
15 mm x 15 mm x 1.5 mm		 21.2 g 15.552 200722 Jul 22, 2020 (mBq/kg) 8740.00 +- 337.30 7803.00 +- 615.60 498.80 +- 14.69 15710 +- 688.20 8831.00 +- 349.00 <299.80

4824.20 +- 324.50
PCBs for the SBC SiPMs Quantity: 30 0.7 g/ PCB

Aug 11, 2020 (ppb or ppm) 707.94 ppb +- 27.32 ppb 632.04 ppb +- 49.86 ppb 877.89 ppb +- 25.85 ppb 3864.66 ppb +- 169.3 ppb 2172.43 ppb +- 85.85 ppb


390.76 ppb +- 26.28 ppb



Additional Activities:

(mBq/kg)

40K: 11541.00 +- 11560.00 227Ac: 1233.00 +- 92.76
54Mn: 212.23 +- 493.20

60Co: 1005.00 +- 678.20


(ppb or ppm)


372.77 ppm +- 373.39 ppm
2170.08 ppb +- 163.26 ppb









SBC CW03 Kester Lead-Free Solder 10.6 g 8.887 210623
210627
210630		 Jun 23, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Tin-Silver Solder Solder: Sn 96.5%
Sg: 3.0%
Cu: 05%


Jul 2, 2021 (mBq/kg) <7.54

528.20 +- 364.40 5.07 +- 5.36 <13.30

<329.40

<36.93

<7.49



Lot: W201038
Solder diameter: 0.8 mm



(ppb or ppm) <0.61 ppb

42.78 ppb +- 29.52 ppb 8.92 ppb +- 9.43 ppb <3.27 ppb

<10.64 ppm










Also counted as PGT SBC P09


Results: 210Pb:
7Be:

54Mn:

228Ac:













Kester
Itaska, IL, USA



(mBq/kg) 10329.00 +- 7231.00 24.90 +- 39.77 <7.34

<11.50

















(ppb or ppm) 836.65 ppb +- 585.71 ppb





<2.83 ppb











SBC CW04 Stainless Steel 53.5 g 11.486 210505 May 5, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Stainless Steel Pressure Vessel Body


May 17, 2021 (mBq/kg) 1.45 +- 1.43 <25.48

<0.31

<3.24

15.50 +- 47.23 <11.46

<6.62



PV Drawing Item #3



(ppb or ppm) 0.12 ppb +- 0.12 ppb <2.06 ppb

<0.55 ppb

<0.8 ppb

0.5 ppm +- 1.53 ppm








Also counted as VDA SBC-V01



Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co












(mBq/kg) 838.27 +- 907.90 <11.73

9.39 +- 2.71 <3.67

0.74 +- 0.73 <2.53











(ppb or ppm) 67.9 ppb +- 73.54 ppb





<0.9 ppb











SBC CW05 Units: 10 2.85 g 6.589 211029
211101
211102		 Oct 29, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Four-Pin RTD Connectors



Nov 5, 2021 (mBq/kg) 4972.00 +- 196.50 9792.00 +- 758.60 282.60 +- 19.92 9605.00 +- 372.00 12476.00 +- 2337.00 <180.70

<135.20








(ppb or ppm) 402.73 ppb +- 15.92 ppb 793.15 ppb +- 61.45 ppb 497.38 ppb +- 35.06 ppb 2.36 ppm +- 0.09 ppm 402.97 ppm +- 75.49 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 4722.50 +- 1342.00 <603.20

<174.10

8948.00 +- 372.80















(ppb or ppm) 382.52 ppb +- 108.7 ppb





2.2 ppm +- 0.09 ppm









SBC CW06 Epoxy colour is blue 6.25 g 27.383 211105 Nov 5, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Stycast Epoxy



Dec 3, 2021 (mBq/kg) 160.80 +- 9.87 2658.00 +- 163.00 48.19 +- 2.45 119.80 +- 9.49 473.77 +- 225.00 <59.64

<14.21








(ppb or ppm) 13.02 ppb +- 0.8 ppb 215.3 ppb +- 13.2 ppb 84.81 ppb +- 4.32 ppb 29.47 ppb +- 2.33 ppb 15.3 ppm +- 7.27 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <545.10

<65.98

<16.26

75.30 +- 13.88















(ppb or ppm) <44.15 ppb







18.52 ppb +- 3.41 ppb









SBC CW07 Kapton Insulated single conductor wire 8.45 g 13.587 211203
211207
211213		 Dec 3, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
RTD Wire Kapton, Silver plated copper


Dec 17, 2021 (mBq/kg) <5.92

19.85 +- 45.18 1.33 +- 1.10 <7.68

1045.90 +- 734.30 <527.90

<12.42








(ppb or ppm) <0.48 ppb

1.61 ppb +- 3.66 ppb 2.34 ppb +- 1.93 ppb <1.89 ppb

33.78 ppm +- 23.72 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <660.40

553.13 +- 570.40 <112.80

13.44 +- 10.47















(ppb or ppm) <53.49 ppb







3.31 ppb +- 2.58 ppb










SBC CW08 Circuit Board Material: Arlon 85N 1.85 g 27.571 211217
220103		 Dec 17, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
PCB Materials OnBoardCircuits Inc.


Jan 14, 2022 (mBq/kg) 8782.00 +- 268.40 15040.00 +- 924.10 506.90 +- 18.63 12300.00 +- 399.70 14881.00 +- 1851.00 <164.10

<118.60








(ppb or ppm) 711.34 ppb +- 21.74 ppb 1218.24 ppb +- 74.85 ppb 892.14 ppb +- 32.79 ppb 3025.8 ppb +- 98.33 ppb 480.66 ppm +- 59.79 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 7378.00 +- 1067.00 <454.80

177.64 +- 78.80 14050.00 +- 425.30















(ppb or ppm) 597.62 ppb +- 86.43 ppb





3456.3 ppb +- 104.62 ppb









SBC CW09 FBK VUV HD4 1x1cm 13.5 g 14.680 240125 Jan 25, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
SiPMs
 Foundazione Bruno Kessler, Italy


Feb 9, 2024 (mBq/kg) <2.03

<15.80

<1.24

<4.35

344.60 +- 191.50 <31.10

<7.92



Quantity: 30



(ppb or ppm) <0.16 ppb

<1.28 ppb

<2.18 ppb

<1.07 ppb

11.13 ppm +- 6.19 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <263.40

<21.85

<8.89

<6.48

















(ppb or ppm) <21.34 ppb







<1.59 ppb












QBITS-CUTE Measurements:




























QBITS-CUTE 01 Homemade IR filters (CNTs) 68.8 g 13.408 220712
220720
220721
22072101		 Jul 12, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
IR Filter
3 Pieces

Jul 26, 2022 (mBq/kg) 3.53 +- 1.61 193.30 +- 37.37 5.38 +- 0.61 9.63 +- 2.04 57.84 +- 34.61 <0.89

<3.62








(ppb or ppm) 0.29 ppb +- 0.13 ppb 15.66 ppb +- 3.03 ppb 9.47 ppb +- 1.07 ppb 2.37 ppb +- 0.5 ppb 1.87 ppm +- 1.12 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co












(mBq/kg) 753.24 +- 876.40 0.87 +- 0.59 <0.15

11.46 +- 3.13 <0.063

<0.34











(ppb or ppm) 61.01 ppb +- 70.99 ppb





2.82 ppb +- 0.77 ppb









QBITS-CUTE 02
6.2 g 8.708 220726
220728
220729
22072901		 Jul 26, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
NbTI Coaxial Cable with Connectors


220731
220803		 Aug 5, 2022 (mBq/kg) 56.60 +- 13.82 17470.00 +- 1043.00 352.20 +- 13.31 509.40 +- 33.78 137.77 +- 146.40 <58.40

<9.25








(ppb or ppm) 4.58 ppb +- 1.12 ppb 1415.07 ppb +- 84.48 ppb 619.87 ppb +- 23.43 ppb 125.31 ppb +- 8.31 ppb 4.45 ppm +- 4.73 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 11055.00 +- 4231.00 <150.20

<16.52

527.00 +- 49.22















(ppb or ppm) 895.46 ppb +- 342.71 ppb





129.64 ppb +- 12.11 ppb









QBITS-CUTE CW03
10.0 g 6.711 230210 Feb 10, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Used Sample Holder Circuit Boards
5 Units

Feb 17, 2023 (mBq/kg) 270.40 +- 18.18 419.30 +- 94.71 15.22 +- 2.70 220.50 +- 18.03 3593.40 +- 686.70 <39.71

9.72 +- 15.07






(ppb or ppm) 21.9 ppb +- 1.47 ppb 33.96 ppb +- 7.67 ppb 26.79 ppb +- 4.75 ppb 54.24 ppb +- 4.44 ppb 116.07 ppm +- 22.18 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 1610.10 +- 717.70 <42.98

<15.71

200.90 +- 26.82















(ppb or ppm) 130.42 ppb +- 58.13 ppb





49.42 ppb +- 6.6 ppb









QBITS-CUTE CW04
10.7 g 6.866 230217 Feb 17, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
New Sample Holder Circuit Boards
5 Units

Feb 24, 2023 (mBq/kg) 241.60 +- 16.41 459.10 +- 83.62 11.70 +- 2.48 208.70 +- 16.62 1802.20 +- 517.10 <40.46

<25.22








(ppb or ppm) 19.57 ppb +- 1.33 ppb 37.19 ppb +- 6.77 ppb 20.59 ppb +- 4.36 ppb 51.34 ppb +- 4.09 ppb 58.21 ppm +- 16.7 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <984.90

47.63 +- 40.28 <13.69

174.60 +- 24.30















(ppb or ppm) <79.78 ppb







42.95 ppb +- 5.98 ppb









QBITS-CUTE CW05 Kurt-J Lesker (99.999% Pure) 4.246 g 6.759 230224
230228		 Feb 24, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Aluminum Pellets (New)



Mar 3, 2023 (mBq/kg) <13.58

<133.00

<6.66

16.20 +- 13.42 <754.90

<90.26

<12.60








(ppb or ppm) <1.1 ppb

<10.77 ppb

<11.72 ppb

3.99 ppb +- 3.3 ppb <24.38 ppm















Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co

24Na









(mBq/kg) <967.10

<128.60

<15.93

41.26 +- 18.96 9.16 +- 4.55 <16.20

<38.64








(ppb or ppm) <78.34 ppb







10.15 ppb +- 4.66 ppb









QBITS-CUTE CW06 Alfa Aeser Puratonics (99.999% Pure) 1.97 g 13.031 230303
230314		 Mar 3, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Aluminum Slugs (New)



Mar 17, 2023 (mBq/kg) <17.31

<131.90

<7.83

<18.91

1780.10 +- 962.00 <209.00

<38.08








(ppb or ppm) <1.4 ppb

<10.68 ppb

<13.78 ppb

<4.65 ppb

57.5 ppm +- 31.07 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co

24Na









(mBq/kg) <1762.00

<160.60

<37.99

53.61 +- 43.65 <15.02

<27.79

<47.76








(ppb or ppm) <142.72 ppb







13.19 ppb +- 10.74 ppb









QBITS-CUTE CW07 Kurt-J Lesker (99.995% Pure) 2.66 g 10.704 230317 Mar 17, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Titanium Pellets (New)



Mar 28, 2023 (mBq/kg) 21.97 +- 20.06 <154.40

5.00 +- 4.34 <23.08

<1538.00

<129.80

<72.47








(ppb or ppm) 1.78 ppb +- 1.62 ppb <12.51 ppb

8.8 ppb +- 7.63 ppb <5.68 ppb

<49.68 ppm















Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <2802.00

<137.70

<45.93

<47.48

















(ppb or ppm) <226.96 ppb







<11.68 ppb











QBITS-CUTE CW08 Chalmers University of Technology 4.806 g 6.866 230328 Mar 28, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Tin Plated Printed Circuit Boards



Apr 4, 2023 (mBq/kg) 5386.00 +- 191.30 9544.00 +- 688.60 304.20 +- 16.54 6481.00 +- 250.10 7503.00 +- 1695.00 <70.62

<69.07



13 units



(ppb or ppm) 436.27 ppb +- 15.5 ppb 773.06 ppb +- 55.78 ppb 535.39 ppb +- 29.11 ppb 1594.33 ppb +- 61.52 ppb 242.35 ppm +- 54.75 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 3163.10 +- 1665.00 <376.80

199.85 +- 78.96 6254.00 +- 253.10















(ppb or ppm) 256.21 ppb +- 134.87 ppb





1538.48 ppb +- 62.26 ppb









QBITS-CUTE CW09 Chalmers University of Technology 12.9568 g 6.812 231129 Nov 29, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
IR Filter from Bluefors



Dec 6, 2023 (mBq/kg) <8.66

1459.00 +- 216.50 28.91 +- 3.36 20.58 +- 9.11 505.53 +- 297.60 <40.70

<20.96



Sample #2



(ppb or ppm) <0.7 ppb

118.18 ppb +- 17.54 ppb 50.88 ppb +- 5.92 ppb 5.06 ppb +- 2.24 ppb 16.33 ppm +- 9.61 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 77515.00 +- 5479.00 <55.55

8.86 +- 9.63 23.51 +- 13.18















(ppb or ppm) 6.28 ppm +- 0.44 ppm





5.78 ppb +- 3.24 ppb









QBITS-CUTE CW10 Chalmers University of Technology 5.092 g 5.843 231206
231209		 Dec 6, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Screws M2 Brass screws small 16 units Skruvcenter


Dec 12, 2023 (mBq/kg) <14.96

<62.19

<6.64

<11.83

391.51 +- 525.70 <79.64

27.71 +- 28.12

Sample #5
16 units



(ppb or ppm) <1.21 ppb

<5.04 ppb

<11.69 ppb

<2.91 ppb

12.65 ppm +- 16.98 ppm













Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <603.70

<146.40

<15.44

<30.20

















(ppb or ppm) <48.9 ppb







<7.43 ppb











QBITS-CUTE CW11 Chalmers University of Technology 0.584 g 6.860 231212 Dec 12, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
PCB Circuits AlOx Tin plated PCB from CERcuits


Dec 19, 2023 (mBq/kg) 3337.00 +- 276.70 8104.00 +- 1197.00 189.50 +- 41.39 6149.00 +- 407.20 14077.00 +- 7897.00 <679.10

<469.20



Sample #6



(ppb or ppm) 270.3 ppb +- 22.41 ppb 656.42 ppb +- 96.96 ppb 333.52 ppb +- 72.85 ppb 1512.65 ppb +- 100.17 ppb 454.69 ppm +- 255.07 ppm









2 Units



Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) <4672.00

984.92 +- 946.92 <228.90

4253.00 +- 573.20















(ppb or ppm) <378.43 ppb







1046.24 ppb +- 141.01 ppb









QBITS-CUTE CW12 Chalmers University of Technology 1.506 g 9.007 231219 Dec 19, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Circuit Boards PCB from CIRcuits


Dec 28, 2023 (mBq/kg) 3144.00 +- 161.80 6719.00 +- 604.50 215.90 +- 21.15 5079.00 +- 256.10 2901.80 +- 2820.00 <323.40

<153.20



Sample #8-1



(ppb or ppm) 254.66 ppb +- 13.11 ppb 544.24 ppb +- 48.96 ppb 379.98 ppb +- 37.22 ppb 1249.43 ppb +- 63 ppb 93.73 ppm +- 91.09 ppm









5 Units



Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg) 1439.30 +- 1707.00 <335.30

132.08 +- 109.00 4354.00 +- 307.10















(ppb or ppm) 116.58 ppb +- 138.27 ppb





1071.08 ppb +- 75.55 ppb









HALO Measurements:




























HALO CW01 HALO Cf-252 Source 34.012 g
221104 Nov 4, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
SRS-10-003 Cf-252 Source



Nov 4, 2022 (mBq/kg)






















Special measurement to determine strength of the HALO source



(ppb or ppm)




























Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg)



























(ppb or ppm)





















HALO CW02 HALO Cf-252 “Dummy” Source 51.03 g 11.412 221107
22110701		 Dec 7, 2022 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
SRS-10-003 Cf-252 “Dummy” Source



Dec 19, 2022 (mBq/kg) 2.08 +- 1.70 <42.61

<0.61

9.59 +- 2.22 <40.49

<8.46

2.68 +- 1.47






(ppb or ppm) 0.17 ppb +- 0.14 ppb <3.45 ppb

<1.07 ppb

2.36 ppb +- 0.55 ppb <1.31 ppm















Results: 210Pb:
7Be:

54Mn:

228Ac:

57Co

58Co












(mBq/kg) <537.50

<9.77

<1.82

10.03 +- 3.52 <1.07

<2.86











(ppb or ppm) <43.54 ppb







2.47 ppb +- 0.87 ppb









CNL Measurements:




























CNL CW01




Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Place Holder




(mBq/kg)



























(ppb or ppm)




























Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg)



























(ppb or ppm)





















Super CDMS Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
11 samples have been counted for SuperCDMS, results are only available to SuperCDMS collaboration members.
DARKSIDE Measurements:




























Sample Description Manufacturer Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

228Ac

137Cs

210Pb
Comments
6 samples have been counted for DarkSide, results are only available to DarkSide collaboration members.
In Progress and To Be Measured:




























Sample Description
Mass (g) Live Time (days) Run Numbers Counting Dates
(if applicable)






















Background CW20
N/A 35.57 230916
23091801
230927
230929
23092901		 Sep 16, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Completely Empty Detector

230930
23093001
231001
231003
23100401		 Oct 26, 2023 (mBq) 0.166 +- 0.027 0.194 +- 0.131 0.0082 +- 0.0060 0.195 +- 0.028 6.03 +- 1.35 0.069 +- 0.031 0.090 +- 0.050




231008
231012
231014
231018
23101801




























231023
231024
23102401
231025
Results: 210Pb:
7Be:

54Mn

228Ac:
















(Mbq) <1.19

0.10 +- 0.14 0.023 +- 0.036 0.248 +- 0.074










































PICO CW51 Part Number: C0805X105K8RAC7210 0.140 g


Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
KEMET Capacitors Type: 1uF 10V X7R 0805



(mBq/kg)






















13 units



(ppb or ppm)




























Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg)



























(ppb or ppm)





















LEGEND CW01 Taiwan Semiconductor Manufacturing Company Limited 0.57 g 7.093 250425 Apr 25, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
ASIC Chips J/N A16-07-374-4



(mBq/kg) <132.50

<359.80

29.65 +- 26.03 <163.00

7703.20 +- 6561.00 <643.10

<263.30


Cold ATA V1 Die Size: 7.85 mm x 7.85 mm x 0.3 mm



(ppb or ppm) <10.73 ppb

<29.14 ppb

52.18 ppb +- 45.81 ppb <40.1 ppb

248.81 ppm +- 211.92 ppm












Results: 210Pb:
7Be:

54Mn:

228Ac:













Number of Units: 13



(mBq/kg) <5312.00

<623.50

<210.40

<424.30

















(ppb or ppm) <430.27 ppb







<104.38 ppb











NEXO 5 Part Name: MMC-S5B8
S/N: 935131424610-T3N		 0.08 g


Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
MuRata Silicon Capacitors Type: 3.3 uF



(mBq/kg)






















www.murata.com
100 units



(ppb or ppm)




























Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg)



























(ppb or ppm)





















Next Sample




Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments






(mBq/kg)



























(ppb or ppm)




























Results: 210Pb:
7Be:

54Mn:

228Ac:


















(mBq/kg)



























(ppb or ppm)