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 runs for the Lively Detector
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)






















Background 1

171.327
Mar 29, 2019 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Completely Empty Detector



Jan 20, 2020 (mBq) 1.201 +- 0.053 2.58 +- 0.40 0.110 +- 0.015 1.074 +- 0.058 4.97 +- 0.45 0.024 +- 0.021 0.118 +- 0.018





































Results: 210Pb:
7Be:

54Mn

228Ac:

210Po:














(mBq) 289.25 +- 31.53 <0.26

0.024 +- 0.021 1.305 +- 0.099 <2629.00









































Background 2

55.461 200324
200430		 Mar 24, 2020 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Completely Empty Detector



May 19, 2020 (mBq) 1.243 +- 0.083 3.02 +- 0.86 0.161 +- 0.029 1.38 +- 0.10 8.35 +- 0.94 <0.043

0.111 +- 0.031





































Results: 210Pb:
7Be:

54Mn

228Ac:

210Po:














(mBq) 554.52 +- 80.36 0.74 +- 0.30 0.020 +- 0.035 2.22 +- 0.18 <4463.00









































Combined Background Combined Backgrounds of runs CW1
171.327

Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments






(mBq) 1.201 +- 0.053 2.58 +- 0.40 0.110 +- 0.015 1.074 +- 0.058 4.97 +- 0.45 0.024 +- 0.021 0.118 +- 0.018
Completely Empty Detector



































Results: 210Pb:
7Be:

54Mn

228Ac:

210Po:














(mBq) 289.25 +- 31.53 <0.26

0.024 +- 0.021 1.305 +- 0.099 <2629.00









































Completed Sample Measurements for the Lively Detector
NEWS-G Measurements:




























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






















NEWS-G L01 Sample made by P.G. 104.2 g 8.840 210623
210627
21062701
210630		 Jun 23, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Wash Solution from Naked 22Na Source 22Na Source is soaked in Cleaning Solution


Jul 2, 2021 (mBq/kg) <1.67

<121.80

<1.66

3.38 +- 4.40 90.76 +- 29.58 <5.83

104.90 +- 6.46

Cleaning Solution: Radiacwash + Water + 2% Nitric Acid



(ppm / ppb / ppt) <0.14 ppb

<9.87 ppb

<2.92 ppb
. 0.83 ppb +- 1.08 ppb 2931.52 ppb +- 955.43 ppb














Results: 210Pb:
7Be:

54Mn

228Ac:
152Eu:














(mBq/kg) <1712.00

<21.89

<6.30

<5.51

1041.00 +- 25.20














(ppm / ppb / ppt) <138.67 ppb







<1.36 ppb













NEWS-G L02 Sample made by P.G. 99.0 g 13.978 210715 Jul 15, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Wash Solution from Naked 22Na Source 22Na Source is soaked in Cleaning Solution


Jul 29, 2021 (mBq/kg) <1.16

<23.69

1.21 +- 0.68 2.97 +- 2.02 37.27 +- 19.03 <1.13

3.68 +- 1.04
Attempt #2 Cleaning Solution: Radiacwash + Water + 2% Nitric Acid



(ppm / ppb / ppt) <0.09 ppb

<1.92 ppb

2.13 ppb +- 1.19 ppb 0.73 ppb +- 0.5 ppb 1203.92 ppb +- 614.67 ppb














Results: 210Pb:
7Be:

54Mn

228Ac:

152Eu















(mBq/kg) <2243.00

<11.63

<1.99

2.86 +- 3.26 <3.04
















(ppm / ppb / ppt) <181.68 ppb







0.7 ppb +- 0.8 ppb











NEWS-G L03 Sample made by P.G. 102.3 g 10.117 210823
210901
21090101		 Aug 23, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Wash Solution from Inner Encapsulation of 22Na Source 22Na Source is soaked in Cleaning Solution


Sep 3, 2021 (mBq/kg) <1.43

<28.24

<1.49

3.15 +- 2.20 35.23 +- 20.34 <0.85

<1.20



Cleaning Solution: Radiacwash + Water + 2% Nitric Acid



(ppm / ppb / ppt) <0.12 ppb

<2.29 ppb

<2.62 ppb
. 0.78 ppb +- 0.54 ppb 1137.93 ppb +- 656.98 ppb














Results: 210Pb:
7Be:

54Mn

228Ac:

152Eu















(mBq/kg) <828.60

<14.02

<1.05

2.98 +- 3.79 <1.03
















(ppm / ppb / ppt) <67.12 ppb







0.73 ppb +- 0.93 ppb











NEWS-G L04 Polycarbonate AR-2
Clear AR-2		 336.2 g 6.951 210910 Sep 10, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Polycarbonate Sheet Product Name: Tuffak


Sep 17, 2021 (mBq/kg) <0.39

<13.25

<0.53

<1.79

<15.76

<0.77

<0.67



Item No: 85316363



(ppm / ppb / ppt) <31.59 ppt

<1.07 ppb

<0.93 ppb
. <0.44 ppb

<509.05 ppb















Results: 210Pb:
7Be:

54Mn

228Ac:













Company: Plaskolite



(mBq/kg) <1617.00

<8.36

<0.44

<4.28



















(ppm / ppb / ppt) <130.98 ppb







<1.05 ppb













NEWS-G L05 Sample made by P.G. 89.45 g 6.722 210917
210921		 Sep 17, 2021 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Wash Solution from Outer Encapsulation of 22Na Source 22Na Source is soaked in Cleaning Solution


Sep 24, 2021 (mBq/kg) <4.21

<46.46

<1.05

5.58 +- 3.14 21.45 +- 26.94 <2.85

<7.18



Cleaning Solution: Radiacwash + Water + 2% Nitric Acid



(ppm / ppb / ppt) <0.34 ppb

<3.76 ppb

<1.85 ppb
. 1.37 ppb +- 0.77 ppb 692.77 ppb +- 870.16 ppb














Results: 210Pb:
7Be:

54Mn

228Ac:

152Eu















(mBq/kg) <1567.00

<14.06

<3.28

<7.18

<1.91
















(ppm / ppb / ppt) <126.93 ppb







<1.77 ppb













NEWS-G L06 Etching Solution: UPW, 3% H2O2, 2% H2SO4 1026.1 g 7.805 240226 Feb 26, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Copper Etching Solution Blank


Mar 5, 2024 (mBq/kg) <0.089

<15.20

0.31 +- 0.14 <0.39

<3.56

<0.33

<0.13


Blank




(ppm / ppb / ppt) <7.21 ppt

<1.23 ppb

0.55 ppb +- 0.24 ppb <0.1 ppb

<114.99 ppb















Results: 210Pb:
7Be:

54Mn

228Ac:


















(mBq/kg) <520.10

<1.08

<0.22

<1.02



















(ppm / ppb / ppt) <42.13 ppb







<0.25 ppb













NEWS-G L07 Etching Solution: UPW, 3% H2O2, 2% H2SO4 974.2 g 15.902 240209
240210
24021001		 Feb 9, 2024 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Copper Etching Solution Used on January 16, 2024


Feb 26, 2024 (mBq/kg) <0.13

<8.39

0.11 +- 0.10 <0.51

<5.41

<0.17

<0.20


Used




(ppm / ppb / ppt) <10.53 ppt

<0.68 ppb

0.2 ppb +- 0.17 ppb <0.13 ppb

<174.74 ppb
















Results: 210Pb:
7Be:

54Mn

228Ac:


















(mBq/kg) 362.47 +- 244.60 1.04 +- 0.04 <0.27

0.51 +- 0.45

















(ppm / ppb / ppt) 29.36 ppb +- 19.81 ppb





0.13 ppb +- 0.11 ppb











In Progress Sample Measurements for the Lively Detector
Runs in Progress:




























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






















Next Sample




Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments






(mBq/kg)



























(ppm / ppb / ppt)







.




















Results: 210Pb:
7Be:

54Mn

228Ac:
210Po:














(mBq/kg)





























(ppm / ppb / ppt)