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:

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: 583.19 and 2614.53 keV,

228Ac: 911.21 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 of the Vue des Alpes Detector

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

Background 1

Efficiency assumes no samples

36.187

171213
171218

Dec 13, 2017

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Jan 19, 2018

(mBq)

1.87

0.17

5.04

1.61

0.061

0.052

1.35

0.17

15.26

1.93

0.201

0.096

0.063

0.054

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

76.66

14.04

<0.67

<0.081

0.88

0.26

Background 2

Efficiency assumes no samples

17.497

180212

Feb 12, 2018

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Mar 2, 2018

(mBq)

1.32

0.22

3.73

2.32

0.233

0.076

0.79

0.22

18.39

2.84

0.392

0.159

0.024

0.082

Results:

210Pb:

7Be:

54Mn:

228Ac:

Background 3

Efficiency assumes no samples

51.750

180319
180417

Mar 18, 2018

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

May 12, 2018

(mBq)

2.23

0.15

4.95

1.39

0.140

0.046

1.274

0.133

17.11

1.74

0.433

0.090

<0.068

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

101.15

12.63

0.50

0.55

0.075

0.065

1.21

0.22

Background 4

Efficiency assumes no samples

82.542

180522
18053001
180801

May 22, 2018

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Aug 12, 2018

(mBq)

2.05

0.12

6.24

1.17

0.124

0.034

1.328

0.114

15.52

1.39

0.319

0.067

0.122

0.037

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

79.59

9.88

0.73

0.46

0.040

0.047

1.13

0.18

Background 5

Efficiency assumes no samples

76.532

190910
190914
190915

Sep 10, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Nov 28, 2019

(mBq)

2.04

0.12

6.37

1.19

0.133

0.035

1.164

0.116

16.22

1.45

0.385

0.076

0.097

0.039

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

82.07

10.15

0.48

0.44

<0.052

1.48

0.19

Background 6

Efficiency assumes no samples

55.304

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)

3.40

0.18

7.80

1.57

0.154

0.043

2.40

0.17

29.09

2.38

0.25

0.09

0.032

0.050

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

191.42

21.95

0.49

0.55

0.043

0.060

2.09

0.26

Background 7

Efficiency assumes no samples

7.257

210111
210119

Jan 11, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Jan 20, 2021

(mBq)

2.06

0.38

8.57

3.77

0.22

0.11

1.14

0.37

29.32

5.23

0.36

0.23

<0.12

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

172.52

44.42

<1.55

<0.21

1.73

0.60

Background 8

N/A

67.574

210517
210524
210627
210630

May 17, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Jul 25, 2021

(mBq)

1.91

0.13

4.78

1.19

0.18

0.04

1.28

0.12

19.49

1.70

0.39

0.08

0.032

0.041

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

141.39

16.91

<1.25

<0.061

1.18

0.20

Combined Background

Combined Backgrounds of Runs 1+2+3+4+5

238.322

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Efficiency assumes no samples

(mBq)

2.414

0.094

6.61

0.85

0.333

0.060

1.534

0.082

18.65

1.22

0.405

0.052

0.151

0.026

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

99.20

7.71

0.32

0.33

0.006

0.034

1.394

0.041

Completed Sample Measurements Counted on the Vue des Alpes Detector

The measurements of the samples below take into account the background measurement shown above. 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)

SNOLAB V01

Background is NOT subtracted

20.583

170901

Sep 1, 2017

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Acrylic Sample Beaker H

Efficiency assumes no samples

Sep 22, 2017

(mBq)

1.44

0.15

0.18

0.73

0.354

0.104

0.80

0.11

7.89

1.32

0.197

0.082

0.040

0.048

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

32.62

5.26

0.38

0.56

<0.052

0.46

0.20

SNOLAB V01A

Background Subtracted

20.853

170901

Sep 1, 2017

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Acrylic Sample Beaker H

Efficiency assumes no samples

Sep 22, 2017

(mBq)

0.29

0.14

<0.095

0.149

0.105

0.01

0.12

<0.26

<0.096

0.012

0.050

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq)

12.81

5.10

0.38

0.56

<0.052

<0.082

SNOLAB V02

Lot No. A4B8 02/20

1871.5 g

6.979

180511

May 12, 2018

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Alconox

Alconox Inc.

May 18, 2018

(mBq/kg)

184.60

4.64

104.50

18.43

5.73

0.54

139.50

4.39

8664.00

446.70

<0.65

0.81

0.79

(ppb or ppm)

14.95 ppb

0.38 ppb

8.46 ppb

1.49 ppb

10.08 ppb

0.95 ppb

34.32 ppb

1.08 ppb

279.85 ppm

14.43 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<79.93

5.61

5.46

<1.21

61.58

3.48

(ppb or ppm)

<6.47 ppb

15.15 ppb

0.86 ppb

SNOLAB V03

Sterling AP 308/3-8L, AWS E308-16, E308L-16

2294.9 g

3.910

180518

May 18, 2018

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Premium Welding Electrodes --- Calibration

McKay Welding Products, Troy, Ohio, Lot No 24L056, Heat No. 738228

May 22, 2018

(mBq/kg)

32330.00

564.60

15260.00

854.50

1110.00

24.75

4810.00

116.10

261860.00

13380.00

<1.68

<6.29

(ppb or ppm)

2.62 ppm

0.05 ppm

1.24 ppm

0.07 ppm

1.95 ppm

0.04 ppm

1.18 ppm

0.03 ppm

8458.08 ppm

432.17 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

414.69

1085.00

4376.00

120.20

(ppb or ppm)

33.59 ppb

87.89 ppb

1.08 ppm

0.03 ppm

SNOLAB V04

Sources prepared on Nov 21, 2019

4.4 g

12.638

191129

Nov 28, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Calibration Source Wipes

The Kimwipes are from sources SRS-19-004

Standard Background Subtraction Using Combined Backgrounds

Dec 11, 2019

(mBq/kg)

455.60

79.18

1335.00

733.50

12.51

22.94

300.50

76.03

5534.60

1118.00

<48.00

11.39

31.69

(ppb or ppm)

36.9 ppb

6.41 ppb

108.14 ppb

59.41 ppb

22.02 ppb

40.37 ppb

73.92 ppb

18.7 ppb

178.77 ppm

36.11 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

986.42

6241.00

<229.50

28.19

26.26

99.80

116.50

(ppb or ppm)

79.9 ppb

505.52 ppb

24.55 ppb

28.66 ppb

SNOLAB V04A

Sources prepared on Nov 21, 2019

4.4 g

12.638

191129

Nov 28, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Calibration Source Wipes

The Kimwipes are from sources SRS-19-004

Background Subtraction Using The Results from SNOLAB 05

Dec 11, 2019

(mBq/kg)

8.96

114.20

264.90

989.30

<23.57

18.40

111.70

0.00

1567.00

<137.40

0.02

38.30

(ppb or ppm)

0.73 ppb

9.25 ppb

21.46 ppb

80.13 ppb

<41.48 ppb

4.53 ppb

27.48 ppb

0 ppm

50.61 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

0.02

24810.00

<944.30

0.03

47.83

6.35

165.80

(ppb or ppm)

0 ppb

2009.61 ppb

1.56 ppb

40.79 ppb

SNOLAB V05

Sample prepared on Dec 05, 2019

4.4 g

7.882

191211

Dec 11, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Kimwipes Blank

These are clean Kimwipes

Standard Background Subtraction Using Combined Backgrounds

Dec 19, 2019

(mBq/kg)

40.49

84.56

801.40

823.40

<14.59

55.51

88.79

635.30

990.90

<83.35

<43.88

(ppb or ppm)

3.28 ppb

6.85 ppb

64.91 ppb

66.7 ppb

<25.68 ppb

13.66 ppb

21.84 ppb

20.52 ppm

32.01 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

20521.00

11650.00

212.32

352.60

17.38

29.66

115.10

142.60

(ppb or ppm)

1662.2 ppb

943.65 ppb

28.31 ppb

35.08 ppb

SNOLAB V06

Vial cap is downwards

0.832 g

17.701

191219
191220

Dec 19, 2019

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

19-004-K2 nEXO Calibration Sample

Specific Activity: 14.0 +- 0.09 Bq of 40K / [g RGK-1]

Jan 6, 2020

(mBq/kg)

4315.00

513.70

8816.00

15340.00

146.60

180.20

297.10

420.20

15233000.00

801100.00

615.97

484.90

<981.60

[11.57 – 11.72] Bq, 3-sigma range

(ppb or ppm)

349.52 ppb

41.61 ppb

714.1 ppb

1242.54 ppb

258.02 ppb

317.15 ppb

73.09 ppb

103.37 ppb

492025.9 ppm

25875.53 ppm

(Bq)

12.67

0.50

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

795110.00

2797000.00

1644.00

3001.00

594.49

511.20

<1864.00

(ppb or ppm)

64.4 ppm

226.56 ppm

<458.54 ppb

SNOLAB V07

Vial cap is upwards

2.046 g

1.937

200106

Jan 6, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

19-004-U1 nEXO Calibration Sample

Specific Activity: 4.94 +- 0.03 Bq of 238U / [g RGU-1]

Jan 8, 2020

(mBq/kg)

5114000.00

93980.00

6168000.00

377900.00

231300.00

5404.00

2079.00

1486.00

4783.50

28500.00

<637.00

<3318.00

[10.04 – 10.17] Bq, 3-sigma range

(ppb or ppm)

414.23 ppm

7.61 ppm

499.61 ppm

30.61 ppm

407.09 ppm

9.51 ppm

511.43 ppb

365.56 ppb

154.51 ppm

920.55 ppm

(Bq)

10.46

0.19

12.62

0.77

Average:

10.59

0.19

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

66658000.00

9102000.00

<10990.00

<960.20

<8204.00

(ppb or ppm)

5399.3 ppm

737.26 ppm

<2.02 ppm

(Bq)

136.38

18.62

SNOLAB V08

Vial cap is upwards

3.327 g

5.000

200108

Jan 8, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

19-004-T1 nEXO Calibration Sample

Specific Activity: 3.25 +- 0.07 Bq of 232Th / [g RGTh-1]

Jan 13, 2020

(mBq/kg)

50150.00

2512.00

511500.00

73360.00

3829.00

540.70

2961000.00

68880.00

233380.00

15970.00

<1441.00

<729.70

[10.58 – 11.05] Bq,
3-sigma range

(ppb or ppm)

4.06 ppm

0.2 ppm

41.43 ppm

5.94 ppm

6.74 ppm

0.95 ppm

728.41 ppm

16.94 ppm

7538.17 ppm

515.83 ppm

(Bq)

Sample Strength:

9.85

0.23

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<1159000.00

23356.00

7448.00

26100.00

1789.00

2804000.00

64000.00

(ppb or ppm)

<93.88 ppm

689.78 ppm

15.74 ppm

(Bq)

Sample Strength:

9.33

0.21

Average:

9.57

0.16

SNOLAB V09

Vial cap is upwards

0.832 g

6.896

200113

Jan 13, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

19-004-K2 nEXO Calibration Sample

Specific Activity: 14.0 +- 0.09 Bq of 40K / [g RGK-1]

Jan 20, 2020

(mBq/kg)

494.30

686.50

1890.00

24090.00

<437.50

918.80

767.20

15495000.00

818300.00

763.17

785.30

<1728.00

[11.57 – 11.72 Bq,
3-sigma range

(ppb or ppm)

40.04 ppb

55.61 ppb

153.09 ppb

1951.29 ppb

<0.77 ppm

226.02 ppb

188.73 ppb

500488.5 ppm

26431.09 ppm

(Bq)

12.89

0.68

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

9895400.00

4772000.00

2661.30

4678.00

180.42

825.50

<1627.00

(ppb or ppm)

801.53 ppm

386.53 ppm

<400.24 ppb

SNOLAB V10

G.F. Thompson Co Ltd.

78.7 g

2.104

200120

Jan 20, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Masters Pro-Dope with Teflon

Newmarket ON

Jan 22, 2020

(mBq/kg)

10880.00

279.90

23870.00

2191.00

555.00

34.31

12220.00

361.10

53843.00

3100.00

<64.63

20.91

27.51

Pipe Sealant

(ppb or ppm)

881.28 ppb

22.67 ppb

1933.47 ppb

177.47 ppb

976.8 ppb

60.39 ppb

3006.12 ppb

88.83 ppb

1739.13 ppm

100.13 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

113630.00

135500.00

340.15

308.30

82.98

43.57

13140.00

422.80

(ppb or ppm)

9204.03 ppb

10975.5 ppb

3232.44 ppb

104.01 ppb

SNOLAB V11

Vial cap is upwards

2.102 g

4.791

200122

Jan 22, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

19-004-U2 nEXO Calibration Sample

Specific Activity: 4.94 +- 0.03 Bq of 238U / [g RGU-1]

Jan 27, 2020

(mBq/kg)

4911000.00

88240.00

5713000.00

311500.00

221400.00

4801.00

2384.00

993.70

<15330.00

<336.50

<1583.00

[10.32 – 10.45] Bq,
3-sigma range

(ppb or ppm)

397.79 ppm

7.15 ppm

462.75 ppm

25.23 ppm

389.66 ppm

8.45 ppm

586.46 ppb

244.45 ppb

<495.16 ppm

(Bq)

10.32

0.19

12.01

0.63

Average:

10.46

0.18

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

71438000.00

6386000.00

<472.00

<461.00

7337.00

4053.00

(ppb or ppm)

5786.48 ppm

517.27 ppm

1804.9 ppb

997.04 ppb

(Bq)

146.16

13.07

SNOLAB V12

Vial cap is upwards

3.180 g

2.958

200127

Jan 27, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

19-004-T2 nEXO Calibration Sample

Specific Activity: 3.25 +- 0.07 Bq of 232Th / [g RGTh-1]

Jan 30, 2020

(mBq/kg)

50670.00

2986.00

787600.00

99220.00

3309.00

723.50

3087000.00

72390.00

224340.00

18380.00

<1361.00

<610.70

[10.11 – 10.56] Bq,
3-sigma range

(ppb or ppm)

4.1 ppm

0.24 ppm

63.8 ppm

8.04 ppm

5.82 ppm

1.27 ppm

759.4 ppm

17.81 ppm

7246.18 ppm

593.67 ppm

(Bq)

Sample Strength:

10.27

0.24

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<453000.00

52273.00

10520.00

27111.00

2143.00

2936000.00

67660.00

(ppb or ppm)

<36.69 ppm

722.26 ppm

16.64 ppm

(Bq)

Sample Strength:

9.77

0.23

Average:

10.00

0.16

SNOLAB V13

Vial cap is upwards

0.626 g

4.910

200130

Jan 30, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

19-004-K1 nEXO Calibration Sample

Specific Activity: 14.0 +- 0.09 Bq of 40K / [g RGK-1]

Feb 4, 2020

(mBq/kg)

2371.00

1068.00

68810.00

33160.00

<311.40

<1200.00

15444000.00

836630.00

<1641.00

104.30

1429.00

[ 8.70 – 8.82] Bq,
3-sigma range

(ppb or ppm)

192.05 ppb

86.51 ppb

5.57 ppm

2.69 ppm

<0.55 ppm

<295.2 ppb

498841.2 ppm

27023.15 ppm

(Bq)

9.67

0.52

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<562400.00

<928.20

<933.30

<4932.00

(ppb or ppm)

<45.55 ppm

<1213.27 ppb

SNOLAB V14

Part No: FG-p

63.9 g

6.021

200204

Feb 4, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Plastic Process Equipment Inc.
Food Grade Anti-Seize Thread Compound

Macedonia, OH, 44056

Feb 10, 2020

(mBq/kg)

1519.00

48.29

1630.00

268.80

75.37

7.18

601.70

30.42

189.63

118.30

7.47

8.36

<4.27

Pipe Sealant
Fortified with PTFE

(ppb or ppm)

123.04 ppb

3.91 ppb

132.03 ppb

21.77 ppb

132.65 ppb

12.64 ppb

148.02 ppb

7.48 ppb

6.13 ppm

3.82 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

46194.00

25930.00

<70.64

<9.71

430.30

38.22

(ppb or ppm)

3741.71 ppb

2100.33 ppb

105.85 ppb

9.4 ppb

SNOLAB V15

Type: 801-16-BLU

357.4 g

2.819

200210

Feb 10, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Push Lok Plus Muli-Purpose Hose

Parker Hannifin Corp

Feb 13, 2020

(mBq/kg)

1803.00

51.43

5141.00

534.40

106.00

8.73

3102.00

91.69

9333.10

568.80

5.01

9.99

<5.85

(ppb or ppm)

146.04 ppb

4.17 ppb

416.42 ppb

43.29 ppb

186.56 ppb

15.36 ppb

763.09 ppb

22.56 ppb

301.46 ppm

18.37 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

5826.00

7988.00

<124.20

22.17

10.20

3004.00

101.90

(ppb or ppm)

471.91 ppb

647.03 ppb

738.98 ppb

25.07 ppb

SNOLAB V16

¾” Natural polypropylene

623.5 g

7.646

200213
200214

Feb 13, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

ENPURE Polypropylene Tubing

Type: SCH-80 Natural

Feb 21, 2020

(mBq/kg)

6.11

1.71

17.12

23.48

<1.34

12.55

1.97

4.02

15.06

<1.20

1.02

0.51

Lot: JJ05-B-12021321352

(ppb or ppm)

0.49 ppb

0.14 ppb

1.39 ppb

1.9 ppb

<2.36 ppb

3.09 ppb

0.48 ppb

129.85 ppb

486.44 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

1062.50

569.20

<6.47

0.88

0.64

<3.34

(ppb or ppm)

86.06 ppb

46.11 ppb

<0.82 ppb

SNOLAB V17

Clear Non-Toxic PVC with Polyester Braid and Rigid PVC Helix

240.5 g

3.847

200221

Feb 21, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Reinforced FDA PVC Suction Hose

Feb 25, 2020

(mBq/kg)

494.30

19.11

739.30

127.20

26.56

3.28

60.84

8.14

678.07

100.80

<3.93

<3.08

(ppb or ppm)

40.04 ppb

1.55 ppb

59.88 ppb

10.3 ppb

46.75 ppb

5.78 ppb

14.97 ppb

2 ppb

21.9 ppm

3.26 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

2178.20

1735.00

60.51

28.93

<2.38

48.45

12.81

(ppb or ppm)

176.43 ppb

140.54 ppb

11.92 ppb

3.15 ppb

SNOLAB V18

NIST Sample

28.825 g

12.736

200225
200302

Feb 25, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Powdered Ocean Sediment Calibration Sample

Cross Comparison Sample A

Mar 9, 2020

(mBq/kg)

11640.00

255.70

21440.00

2071.00

588.40

23.00

12650.00

331.70

255240.00

13160.00

7109.00

366.40

<29.11

Sample placed directly on top of the detector

(ppb or ppm)

942.84 ppb

20.71 ppb

1736.64 ppb

167.75 ppb

1035.58 ppb

40.48 ppb

3.11 ppm

0.08 ppm

8244.25 ppm

425.07 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

241Am

(mBq/kg)

<15060.00

<452.60

91.50

29.67

12730.00

352.00

20580.00

1569.00

(ppb or ppm)

<1219.86 ppb

3.13 ppm

0.09 ppm

SNOLAB V19

NIST Sample

33.454 g

21.617

200519

May 19, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Powdered Ocean Sediment Calibration Sample

Cross Comparison Sample B

Jun 10, 2020

(mBq/kg)

10980.00

223.00

17630.00

1702.00

571.60

18.50

12060.00

299.10

247900.00

12720.00

6397.80

352.70

<25.82

Sample placed directly on top of the detector

(ppb or ppm)

889.38 ppb

18.06 ppb

1428.03 ppb

137.86 ppb

1006.02 ppb

32.56 ppb

2.97 ppm

0.07 ppm

8007.17 ppm

410.86 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

241Am

(mBq/kg)

<8362.00

<272.30

74.54

20.54

12000.00

307.10

28410.00

1509.00

(ppb or ppm)

<677.32 ppb

2.95 ppm

0.08 ppm

SNOLAB V20

Lake in City of Greater Sudbury, Ontario

993.9 g

14.666

200309

Mar 9, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Long Lake Water

Sample collected on 2019-10-14 at 16:54

Mar 24, 2020

(mBq/kg)

2.15

0.56

<12.40

<0.27

<0.61

52.14

8.26

1.00

0.38

<0.15

Sample placed in beaker “∆”

(ppb or ppm)

174.23 ppt

45.23 ppt

<1 ppb

<0.48 ppb

<0.15 ppb

1684.19 ppb

266.89 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

1151.50

456.70

6.81

2.47

<0.38

1.24

0.81

(ppb or ppm)

93.27 ppb

36.99 ppb

0.31 ppb

0.2 ppb

SNOLAB V21

Lake in City of Greater Sudbury, Ontario

981.4 g

17.117

200610
200624

Jun 10, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Simon Lake Water

Sample collected on 2019-11-01 at 18:15

Jun 30, 2020

(mBq/kg)

1.60

0.51

12.40

13.22

<0.44

<0.82

402.00

25.30

<0.46

0.11

0.23

Sample placed in beaker “H”

(ppb or ppm)

129.52 ppt

40.99 ppt

1004.4 ppt

1070.82 ppt

<0.77 ppb

<0.2 ppb

12984.6 ppb

817.19 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

1144.60

434.20

<2.80

<0.27

4.99

1.07

(ppb or ppm)

92.71 ppb

35.17 ppb

1.23 ppb

0.26 ppb

SNOLAB V22

Lake in City of Greater Sudbury, Ontario

935.2 g

21.708

200630

Jun 30, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Robinson Lake Water

Sample collected on 2019-10-22 at 12:43

Jul 22, 2020

(mBq/kg)

5.12

0.58

21.36

12.70

<0.33

0.32

0.49

95.61

9.55

0.23

0.30

<0.14

Sample placed in beaker “□”

(ppb or ppm)

414.48 ppt

46.96 ppt

1.73 ppb

1.03 ppb

<0.58 ppb

0.08 ppb

0.12 ppb

3088.33 ppb

308.47 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

536.35

394.10

0.50

2.04

0.23

0.30

1.94

0.79

(ppb or ppm)

43.44 ppb

31.92 ppb

0.48 ppb

0.19 ppb

SNOLAB V23

Lake in City of Greater Sudbury, Ontario

986.0 g

16.659

200722

Jul 22, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Meatbird Lake Water

Sample collected on 2019-10-08 at 10:50

Aug 11, 2020

(mBq/kg)

0.19

0.45

<13.83

0.37

0.22

<0.32

124.59

11.09

<0.39

<0.21

Sample placed in beaker “∆”

(ppb or ppm)

15.39 ppt

36.17 ppt

<1.12 ppb

0.65 ppb

0.38 ppb

<0.08 ppb

4024.26 ppb

358.21 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<567.10

0.98

1.91

0.03

0.19

0.79

(ppb or ppm)

<45.94 ppb

0.19 ppb

SNOLAB V24

Lake in City of Greater Sudbury, Ontario

842.7 g

13.500

200811
20081101

Aug 11, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Kelly Lake Water

Sample collected on 2019-10-7 at 10:30

Aug 25, 2020

(mBq/kg)

3.31

0.78

11.09

30.51

<0.60

0.36

0.77

501.76

33.74

0.60

0.49

<0.24

(ppb or ppm)

267.95 ppt

63.22 ppt

898.29 ppt

2471.31 ppt

<1.06 ppb

0.09 ppb

0.19 ppb

16.21 ppm

1.09 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

2300.50

1355.00

2.43

3.23

<0.43

6.61

1.40

(ppb or ppm)

186.34 ppb

109.76 ppb

1.62 ppb

0.34 ppb

SNOLAB V25

Lake in City of Greater Sudbury, Ontario

1032.2 g

13.395

201006

Oct 6, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Robinson Lake Water

Sample collected on 2020-09-19 at 14:30

Oct 20, 2020

(mBq/kg)

1.35

0.56

<29.58

0.42

0.24

<1.04

100.12

11.32

0.50

0.39

<0.16

(ppb or ppm)

109.59 ppt

45.27 ppt

<2.4 ppb

0.73 ppb

0.42 ppb

<0.26 ppb

3233.88 ppb

365.64 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

881.22

989.90

10.41

3.23

0.34

0.23

1.88

0.99

(ppb or ppm)

71.38 ppb

80.18 ppb

0.46 ppb

0.24 ppb

SNOLAB V26

Lake in City of Greater Sudbury, Ontario

985.3 g

10.743

201023

Oct 23, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

St. Charles Lake Water

Sample collected on 2020-09-19 at 14:53

Nov 3, 2020

(mBq/kg)

1.50

0.62

27.39

23.77

0.28

0.32

0.66

56.58

9.84

1.25

0.47

0.17

0.24

(ppb or ppm)

0.12 ppb

0.05 ppb

2.22 ppb

1.93 ppb

0.49 ppb

0.5 ppb

0.08 ppb

0.16 ppb

1.83 ppm

0.32 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

23258.00

29210.00

13.73

3.76

<0.24

0.16

0.93

(ppb or ppm)

1883.9 ppb

2366.01 ppb

0.04 ppb

0.23 ppb

SNOLAB V27

Lake in City of Greater Sudbury, Ontario

956.4 g

11.146

201106

Nov 6, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Long Lake Water

Sample collected on 2020-09-27 at 15:00

Nov 17, 2020

(mBq/kg)

<0.98

<16.85

0.40

0.26

<0.63

35.53

8.90

0.61

0.44

<0.31

(ppb or ppm)

<79.38 ppt

<1.36 ppb

0.71 ppb

0.46 ppb

<0.15 ppb

1147.59 ppb

287.53 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

1542.40

1182.00

14.09

3.54

<0.39

<0.84

(ppb or ppm)

124.93 ppb

95.74 ppb

<0.21 ppb

SNOLAB V28

Lake Bed Sand from Lohi Lake in City of Greater Sudbury, Ontario

600.4 g

2.930

201020

Oct 20, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Lohi Lake Sand

Sample collected on 2020-09-19 at 17:10

Oct 23, 2020

(mBq/kg)

7917.00

172.90

17980.00

1656.00

422.10

18.84

6592.00

179.80

381970.00

19550.00

N/D – No observable signal due to U & Th Interference

<27.73

(ppb or ppm)

641.28 ppb

14 ppb

1456.38 ppb

134.14 ppb

742.9 ppb

33.16 ppb

1621.63 ppb

44.23 ppb

12337.63 ppm

631.47 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

455740.00

198800.00

N/D – No observable signal due to U & Th Interference

6194.00

190.90

(ppb or ppm)

36914.94 ppb

16102.8 ppb

1523.72 ppb

46.96 ppb

SNOLAB V29

Lake Bed Sand from Ramsey Lake in City of Greater Sudbury, Ontario

605.1 g

2.930

201103

Nov 3, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Ramsey Lake Sand

Sample collected on 2020-09-15 at 18:50

Nov 6, 2020

(mBq/kg)

14950.00

305.70

28000.00

2515.00

765.40

27.20

16230.00

407.20

513760.00

26280.00

N/D – No observable signal due to U & Th Interference

<34.32

(ppb or ppm)

1210.95 ppb

24.76 ppb

2268 ppb

203.72 ppb

1347.1 ppb

47.87 ppb

3992.58 ppb

100.17 ppb

16594.45 ppm

848.84 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

156490.00

184600.00

N/D – No observable signal due to U & Th Interference

14800.00

392.30

(ppb or ppm)

12675.69 ppb

14952.6 ppb

3640.8 ppb

96.51 ppb

SNOLAB V30

Lake Bed Sand from St Charles Lake in City of Greater Sudbury, Ontario

591.6 g

2.534

201117

Nov 17, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

St Charles Lake Sand

Sample collected on 2020-09-19 at 14:55

Nov 20, 2020

(mBq/kg)

12370.00

263.60

29950.00

2642.00

606.50

25.82

16700.00

422.70

572120.00

29270.00

N/D – No observable signal due to U & Th Interference

17.15

25.66

(ppb or ppm)

1001.97 ppb

21.35 ppb

2425.95 ppb

214 ppb

1067.44 ppb

45.44 ppb

4108.2 ppb

103.98 ppb

18479.48 ppm

945.42 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<266100.00

N/D – No observable signal due to U & Th Interference

16120.00

429.60

(ppb or ppm)

<21.55 ppm

3965.52 ppb

105.68 ppb

SNOLAB V31

Lake in City of Greater Sudbury, Ontario

1023.10 g

13.687

201120

Nov 20, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Vermillion Lake Water

Sample collected on 2020-10-23 at 13:00

Dec 4, 2020

(mBq/kg)

2.20

0.58

15.37

20.24

<0.42

0.97

0.60

63.51

9.21

<0.38

<0.22

(ppb or ppm)

178.44 ppt

46.95 ppt

1.24 ppb

1.64 ppb

<0.74 ppb

0.24 ppb

0.15 ppb

2051.44 ppb

297.32 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<1381.00

57.03

5.72

<0.24

3.17

0.95

(ppb or ppm)

<111.86 ppb

0.78 ppb

0.23 ppb

SNOLAB V32

Lake in City of Greater Sudbury, Ontario

961.0 g

13.777

201204

Dec 4, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Meatbird Lake Water

Sample collected on October 05, 2020 @ 14:00

Dec 18, 2020

(mBq/kg)

0.83

0.58

<24.71

<0.30

0.06

0.60

167.44

15.20

0.18

0.35

0.27

0.25

(ppb or ppm)

67.28 ppt

47.34 ppt

<2 ppb

<0.53 ppb

0.02 ppb

0.15 ppb

5.41 ppm

0.49 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

977.51

1067.00

5.13

2.80

0.30

0.27

4.56

1.18

(ppb or ppm)

79.18 ppb

86.43 ppb

1.12 ppb

0.29 ppb

SNOLAB V33

Lucas Cell Coating

68.3 g

23.652

201218

Dec 18, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

ZnS(Ag) Powder

Saint-Gobain

The sample is also counted in the Well detector as SNOLAB CW10

Jan 11, 2021

(mBq/kg)

<3.30

<98.38

0.86

0.90

<4.37

21.74

34.92

<3.09

<0.89

(ppb or ppm)

<0.27 ppb

<7.97 ppb

1.52 ppb

1.59 ppb

<1.08 ppb

702.33 ppb

1127.92 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

53891.00

34430.00

5.06

11.94

<1.33

<5.33

(ppb or ppm)

4.37 ppm

2.79 ppm

<1.31 ppb

SNOLAB V34

72% Cocoa

202.9 g

4.980

240425

Apr 25, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Merci (Stork) Dark Chocolate

Made in Germany

Apr 30, 2024

(mBq/kg)

453.30

23.50

952.50

379.50

5.61

6.60

285.70

21.85

20507.00

10540.00

62.39

14.87

<19.40

(ppb or ppm)

36.72 ppb

1.9 ppb

77.15 ppb

30.74 ppb

9.88 ppb

11.62 ppb

70.28 ppb

5.38 ppb

662.38 ppm

340.44 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<29620.00

227.13

95.34

22.85

14.15

630.10

51.65

(ppb or ppm)

<2.4 ppm

155 ppb

12.71 ppb

PICO Measurements:

Sample Description

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

PICO V01

Model No. S1328PD3T72
Omega

60.1 g

15.659

200825

Aug 25, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

White RTD Wire Leads

Sep 10, 2020

(mBq/kg)

5.38

7.22

<127.80

2.54

2.40

<9.16

69.28

72.04

<5.89

<1.78

(ppb or ppm)

0.44 ppb

0.58 ppb

<10.35 ppb

4.47 ppb

4.22 ppb

<2.25 ppb

2237.78 ppb

2326.89 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

140700.00

38520.00

<53.17

<1.90

<14.98

(ppb or ppm)

11.4 ppm

3.12 ppm

<3.69 ppb

PICO V02

Model No. S1328PD3T72 Omega

23.9 g

11.639

200910

Sep 10, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Red RTD Wire Leads

Sep 22, 2020

(mBq/kg)

4.67

20.77

<422.90

6.19

6.59

<27.98

74.99

232.80

<17.53

<3.64

(ppb or ppm)

0.38 ppb

1.68 ppb

<34.25 ppb

10.89 ppb

11.59 ppb

<6.88 ppb

2.42 ppm

7.52 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

148160.00

69770.00

132.14

84.27

<14.75

<42.97

(ppb or ppm)

12 ppm

5.65 ppm

<10.57 ppb

PICO V03

Hard Copper Wire

45.2 g

13.687

200922

Sep 22, 2020

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

PICO Heater Cables

Oct 6, 2020

(mBq/kg)

<13.25

<127.70

<3.89

6.70

9.82

<148.60

9.17

6.88

<5.33

(ppb or ppm)

<1.07 ppb

<10.34 ppb

<6.85 ppb

1.65 ppb

2.42 ppb

<4.8 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

58Co

57Co

(mBq/kg)

143110.00

62600.00

3.33

41.87

2.55

4.67

21.23

16.07

0.54

3.65

7.05

6.27

(ppb or ppm)

11.59 ppm

5.07 ppm

5.22 ppb

3.95 ppb

PICO V04

Preamps for Piezos for the PICO and SBC experiments

21.2 g

25.610

210421
210429

Apr 21, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Kapton Preamp Boards

Quantity: 28

May 17, 2021

(mBq/kg)

1504.00

45.52

4544.00

459.10

89.11

7.12

2226.00

71.56

4239.80

321.90

<9.34

<5.98

(ppb or ppm)

121.82 ppb

3.69 ppb

368.06 ppb

37.19 ppb

156.83 ppb

12.53 ppb

547.6 ppb

17.6 ppb

136.95 ppm

10.4 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

259030.00

88590.00

<108.00

12.60

9.45

2254.00

80.58

(ppb or ppm)

20.98 ppm

7.18 ppm

554.48 ppb

19.82 ppb

PICO V05

BLU-25751706 Lot 230328
3/32 “ x 7”

276.2 g

5.088

231026
23102601
231028
231029

Oct 26, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Tungsten Ceriated Welding Electrodes

Air Liquide, Blueshield, Made in China

231030

Oct 31, 2023

(mBq/kg)

<186.40

9577.00

4406.00

<193.20

570400.00

13220.00

14541.00

902.70

61.79

71.90

<50.83

Sample contains 20 electrodes

(ppb or ppm)

<15.1 ppb

775.74 ppb

356.89 ppb

<340.03 ppb

140.32 ppm

3.25 ppm

469.67 ppm

29.16 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<2.62E6

2903.00

633.10

2985.60

182.10

207300.00

4975.00

(ppb or ppm)

<212.22 ppm

51 ppm

1.22 ppm

PICO V06

BLU-25751706 Lot 220713
3/32 “ x 7”

422.2 g

4.687

231031 23103101 231101 231102 231103

Oct 31, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Tungsten Ceriated Welding Electrodes

Air Liquide, Blueshield, Made in China

Nov 5, 2023

(mBq/kg)

<68.47

927.80

1908.00

64.68

53.28

93870.00

2196.00

7938.60

475.80

<66.87

<10.82

Sample contains 30 electrodes

(ppb or ppm)

<5.55 ppb

75.15 ppb

154.55 ppb

113.84 ppb

93.77 ppb

23.09 ppm

0.54 ppm

256.42 ppm

15.37 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

2324000.00

2368000.00

1866.60

317.70

1527.00

84.04

105300.00

2557.00

(ppb or ppm)

188.24 ppm

191.81 ppm

25.9 ppm

0.63 ppm

PICO V07

BLU-25751708 Lot 230204
1/8 “ x 7”

251.5 g

3.126

231105

Nov 5, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Tungsten Ceriated Welding Electrodes

Air Liquide, Blueshield, Made in China

Nov 8, 2023

(mBq/kg)

<115.70

<7092.00

<235.50

577200.00

13410.00

16792.00

1114.00

<111.70

<59.50

Sample contains 10 electrodes

(ppb or ppm)

<9.37 ppb

<574.45 ppb

<414.48 ppb

141.99 ppm

3.3 ppm

542.38 ppm

35.98 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<7.92E6

3190.90

949.60

3172.30

181.60

222400.00

5483.00

(ppb or ppm)

<641.52 ppm

54.71 ppm

1.35 ppm

PICO V08

BLU-25751708 Lot 230515
1/8 “ x 7”

1004.4 g

7.786

231108

Nov 8, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Tungsten Ceriated Welding Electrodes

Air Liquide, Blueshield, Made in China

Nov 16, 2023

(mBq/kg)

<33.37

263.40

2273.00

299.50

113.60

599300.00

14060.00

17403.00

929.60

<59.25

<14.68

Sample contains 40 electrodes

(ppb or ppm)

<2.7 ppb

21.34 ppb

184.11 ppb

527.12 ppb

199.94 ppb

147.43 ppm

3.46 ppm

562.12 ppm

30.03 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<1.79E7

3007.20

395.00

2659.20

146.10

213800.00

5309.00

(ppb or ppm)

<1449.9 ppm

52.59 ppm

1.31 ppm

PICO V09

Molex wire ring connectors

100.6 g

8.757

240305
240313

Mar 5, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Wire Ring connectors

Types: 16-14 MX
22-18 MX

Mar 15, 2024

(mBq/kg)

<4.41

99.35

249.00

<4.27

<5.03

<64.56

<3.73

<3.75

(ppb or ppm)

<357.21 ppt

8.05 ppb

20.17 ppb

<7.52 ppb

<1.24 ppb

<2.09 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

371410.00

337700.00

46.92

30.78

7.53

3.97

<7.22

(ppb or ppm)

30.08 ppm

27.35 ppm

<1.78 ppb

NEXO Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

NEXO V01

TIVAR UMHW

1065.6 g

19.495

231122
231209

Nov 22, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

TIVAR UHMW
EC J-202

Cuboid Pieces

Dec 12, 2023

(mBq/kg)

<0.62

21.02

12.66

<0.41

<1.12

49.56

8.10

<0.43

<0.14

(ppb or ppm)

<50.22 ppt

1.7 ppb

1.03 ppb

<0.72 ppb

<0.28 ppb

1.6 ppm

0.26 ppm

4 Units

Results:

210Pb:

7Be:

54Mn:

228Ac:

210Po

(mBq/kg)

3108.00

1928.00

3.34

2.34

0.28

0.23

<1.71

(ppb or ppm)

251.75 ppb

156.17 ppb

<0.42 ppb

NEXO V02

TIVAR ESD

2478.77 g

15.853

231212
231219

Dec 12, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

TIVAR ESD
J-203

Cylinders

Dec 28, 2023

(mBq/kg)

0.52

0.18

<8.46

0.09

0.07

0.21

0.18

5.96

2.11

<0.065

<0.12

(ppb or ppm)

42.1 ppt

14.46 ppt

<0.69 ppb

0.16 ppb

0.13 ppb

51.12 ppt

44.85 ppt

192.59 ppb

68.19 ppb

27 units counted

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

1835.70

816.50

1.23

0.78

<0.061

<0.25

(ppb or ppm)

148.69 ppb

66.14 ppb

<61.5 ppt

NEXO V03

Semi-Gloss – White
Oil Based

73.3 g

9.869

240216

Feb 16, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Tremclad Rust Paint

Part No: 254933

Feb 26, 2024

(mBq/kg)

737.50

26.44

2487.00

276.20

35.97

4.72

619.40

27.16

3033.10

238.90

14.65

7.06

<4.29

Rust-Oleum, Concord, ON

(ppb or ppm)

59.74 ppb

2.14 ppb

201.45 ppb

22.37 ppb

63.31 ppb

8.3 ppb

152.37 ppb

6.68 ppb

97.97 ppm

7.72 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

210Po

(mBq/kg)

<19550.00

<75.74

18.18

6.30

592.40

35.18

(ppb or ppm)

<1.58 ppm

145.73 ppb

8.65 ppb

CUTE Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

CUTE V01

CUTE Source SRS-19-003

194.0 g

6.791

210120

Jan 20, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

CUTE Fe-55 Calibration Sample

55-Fe source inside a copper holder

Jan 27, 2021

(mBq/kg)

<1.44

<247.60

6.19

3.94

7.23

2.44

7.67

20.01

<1.56

175.30

8.40

The source strength is 222 kBq

(ppb or ppm)

<0.12 ppb

<20.06 ppb

10.9 ppb

6.94 ppb

1.78 ppb

0.6 ppb

247.71 ppb

646.32 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

<639400.00

High limit due to large number of 55-Fe X-rays

5.86

9.09

<2.18

4.19

4.47

<53.66

<1.79

+ large number of X-Rays from 55-Fe

(ppb or ppm)

<51.79 ppm

1.03 ppb

1.1 ppb

CUTE V02

Loctite Epoxy by Henkel

52.3 g

5.861

210415

Apr 15, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Loctite EA-0151 Epoxy

PN: 398454

Apr 21, 2021

(mBq/kg)

<8.65

<64.10

<3.01

<9.01

<78.76

<4.56

<6.37

Batch No: LB0KAA3587 21/043

(ppb or ppm)

<0.7 ppb

<5.19 ppb

<5.3 ppb

<2.22 ppb

<2.54 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

897.72

981.50

<74.36

<6.39

<27.55

(ppb or ppm)

72.72 ppb

79.5 ppb

<6.78 ppb

CUTE V03

51.6 g

7.883

240411

Apr 11, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

G10 Plastic Tubes & Inserts

Apr 19, 2024

(mBq/kg)

8100.00

184.20

25000.00

1808.00

397.20

19.02

20790.00

512.10

16364.00

950.00

<26.87

<14.42

(ppb or ppm)

656.1 ppb

14.92 ppb

2.03 ppm

0.15 ppm

699.07 ppb

33.48 ppb

5.11 ppm

0.13 ppm

528.56 ppm

30.69 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

30602.00

83100.00

354.71

202.00

236.28

30.01

18730.00

476.90

(ppb or ppm)

2.48 ppm

6.73 ppm

4.61 ppm

0.12 ppm

CUTE V04

16.9 g

5.778

240419
240425

Apr 19, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

G10 Plastic Tubes

Apr 25, 2024

(mBq/kg)

10710.00

323.50

39930.00

3861.00

527.30

51.78

27360.00

793.20

22372.00

1778.00

<86.57

<78.20

(ppb or ppm)

867.51 ppb

26.2 ppb

3.23 ppm

0.31 ppm

928.05 ppb

91.13 ppb

6.73 ppm

0.2 ppm

722.62 ppm

57.43 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

100830.00

253700.00

<1163.00

415.95

80.19

25420.00

812.20

(ppb or ppm)

8.17 ppm

20.55 ppm

6.25 ppm

0.2 ppm

SBC Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

SBC V01

Stainless Steel

364.72 g

8.777

210127
210202

Jan 27, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Stainless Steel

Pressure Vessel Body

Feb 5, 2021

(mBq/kg)

1.91

1.13

<61.70

0.47

0.43

<2.64

<23.78

0.71

0.68

5.06

0.82

PV Drawing Item #3

(ppb or ppm)

154.63 ppt

91.29 ppt

<5 ppb

0.83 ppb

0.76 ppb

<0.65 ppb

<0.77 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

148260.00

118900.00

<7.53

2.84

0.70

<1.76

4.73

1.90

<0.86

(ppb or ppm)

12.01 ppm

9.63 ppm

<0.43 ppb

SBC V02

Stainless Steel

254.35 g

6.791

210205
200207

Feb 5, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Stainless Steel

Feedthrough Tube for the Pressure Vessel

Feb 12, 2021

(mBq/kg)

3.86

2.03

<67.98

0.34

0.72

4.66

2.15

<34.73

1.09

1.45

1.02

0.82

PV Drawing Item #8

(ppb or ppm)

312.66 ppt

164.27 ppt

<5.51 ppb

0.6 ppb

1.27 ppb

1.15 ppb

0.53 ppb

<1.12 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

141470.00

129400.00

7.42

8.76

2.40

1.24

<7.34

<2.44

<1.17

(ppb or ppm)

11.46 ppm

10.48 ppm

<1.81 ppb

SBC V03

Stainless Steel

189.45 g

11.541

210212
210216

Feb 12, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Stainless Steel

Pressure Vessel Spool

Feb 24, 2021

(mBq/kg)

0.94

1.76

126.80

71.45

2.38

0.75

<3.89

<32.52

1.57

1.16

75.03

4.17

PV Drawing Item #6

(ppb or ppm)

0.08 ppb

0.14 ppb

10.27 ppb

5.79 ppb

4.18 ppb

1.31 ppb

<0.96 ppb

<1.05 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

122400.00

106900.00

<12.46

6.46

1.47

2.61

3.37

<3.72

<2.38

(ppb or ppm)

9.91 ppm

8.66 ppm

0.64 ppb

0.83 ppb

SBC V04

Stainless Steel

134.65 g

8.639

210224
210301

Feb 24, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Stainless Steel

Pressure Vessel Dome

Mar 5, 2021

(mBq/kg)

<3.93

<108.50

<0.74

4.87

2.87

<42.76

<1.27

<1.33

PV Drawing Item #1

(ppb or ppm)

<0.32 ppb

<8.79 ppb

<1.3 ppb

1.2 ppb

0.71 ppb

<1.38 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

74615.00

120200.00

3.12

8.98

4.13

1.37

12.30

4.23

3.75

2.12

<1.59

(ppb or ppm)

6.04 ppm

9.74 ppm

3.03 ppb

1.04 ppb

SBC V05

Stainless Steel

372.40 g

14.722

210305

Mar 5, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Stainless Steel

Pressure Relief Pipe

Mar 22, 2021

(mBq/kg)

3.97

1.47

82.29

53.49

0.82

0.62

6.32

1.59

<5.66

<0.80

3.23

0.81

(ppb or ppm)

0.32 ppb

0.12 ppb

6.67 ppb

4.33 ppb

1.44 ppb

1.09 ppb

1.56 ppb

0.39 ppb

<0.18 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

130530.00

136300.00

<6.77

1.64

0.77

<2.38

<2.28

0.55

0.62

(ppb or ppm)

10.57 ppm

11.04 ppm

<0.59 ppb

SBC V06

Silver Plated Bolts

744.9 g

7.182

231228

Dec 28, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Silter Plated Bolts

Label: S30400 THE

Jan 5, 2024

(mBq/kg)

<1.40

26.97

36.14

0.40

0.39

3.42

1.10

<9.62

<0.50

23.25

1.56

Units: 6

(ppb or ppm)

<0.11 ppb

2.18 ppb

2.93 ppb

0.71 ppb

0.69 ppb

0.84 ppb

0.27 ppb

<0.31 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

18039.00

20200.00

10.84

5.09

0.83

0.63

2.58

1.83

(ppb or ppm)

1.46 ppm

1.64 ppm

0.63 ppb

0.45 ppb

SBC V07

PTFE

48.5 g

11.708

240105

Jan 5, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

IA PTFE inner Tower

Jan 17, 2024

(mBq/kg)

<4.70

181.10

111.80

<4.56

<5.05

<63.58

<11.23

<2.16

(ppb or ppm)

<0.38 ppb

14.67 ppb

9.06 ppb

<8.03 ppb

<1.24 ppb

<2.05 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

23168.00

13680.00

<40.04

<8.61

<9.43

(ppb or ppm)

1.88 ppm

1.11 ppm

<2.32 ppb

SBC V08

1695.2 g

7.854

240117

Jan 17, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Stainless Steel Bellows Flange

8 Pieces

Jan 25, 2024

(mBq/kg)

4.94

0.86

15.12

27.78

0.19

0.38

12.42

1.20

<7.91

<0.59

10.29

0.80

(ppb or ppm)

0.4 ppb

0.07 ppb

1.22 ppb

2.25 ppb

0.33 ppb

0.67 ppb

3.06 ppb

0.3 ppb

<0.26 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

14818.00

21610.00

5.07

3.81

0.84

0.48

15.84

1.97

<1.30

0.97

0.45

(ppb or ppm)

1.2 ppm

1.75 ppm

3.9 ppb

0.48 ppb

SBC V09

Standard Stainles Steel Tubes which are welded together

150.8 g

6.730

240209
240210
24021001

Feb 9, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Stainless Steel Welded Tubes

Feb 16, 2024

(mBq/kg)

<1.61

<73.78

<0.93

4.50

2.51

<21.85

<1.57

6.46

1.51

(ppb or ppm)

<0.13 ppb

<5.98 ppb

<1.64 ppb

1.11 ppb

0.62 ppb

<705.76 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

<14390.00

<12.37

2.85

1.39

2.07

3.81

<1.65

<2.51

(ppb or ppm)

<1.17 ppm

0.51 ppb

0.94 ppb

DEAP Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

DEAP V01

Carlisle Brushes

151.7 g

8.819

210322

Mar 22, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Carlisle Brushes

Part No: 4039002

Quantity: 5

Mar 31, 2021

(mBq/kg)

90.62

6.71

237.90

99.48

5.37

1.66

16.09

4.77

648.34

82.23

<1.48

<2.27

(ppb or ppm)

7.34 ppb

0.54 ppb

19.27 ppb

8.06 ppb

9.45 ppb

2.91 ppb

3.96 ppb

1.17 ppb

20.94 ppm

2.66 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

31077.00

23210.00

<20.17

2.57

2.07

31.42

8.24

(ppb or ppm)

2.52 ppm

1.88 ppm

7.73 ppb

2.03 ppb

DEAP V02

Gordon Brushes

207.0 g

14.715

210331
210405

Mar 31, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Gordon Brushes

Part No: 906389

Quantity: 5

Apr 15, 2021

(mBq/kg)

0.43

1.66

<67.28

<1.63

10.54

2.13

<24.83

<1.70

1.94

0.83

(ppb or ppm)

0.03 ppb

0.13 ppb

<5.45 ppb

<2.87 ppb

2.59 ppb

0.52 ppb

<0.8 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

53660.00

41610.00

<13.76

1.85

0.87

10.81

3.29

(ppb or ppm)

4.35 ppm

3.37 ppm

2.66 ppb

0.81 ppb

CNL Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

CNL V01

49.2919 g

4.443

230202

Feb 2, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 3
10-15 cm

Feb 7, 2023

(mBq/kg)

10880.00

279.70

39520.00

2966.00

501.20

33.79

13540.00

396.00

669460.00

34440.00

4596.90

254.70

<80.57

(ppb or ppm)

881.28 ppb

22.66 ppb

3201.12 ppb

240.25 ppb

882.11 ppb

59.47 ppb

3330.84 ppb

97.42 ppb

21623.56 ppm

1112.41 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

57367.00

108600.00

<724.90

202.97

60.98

13100.00

432.40

(ppb or ppm)

4.65 ppm

8.8 ppm

3222.6 ppb

106.37 ppb

CNL V02

41.7266 g

3.002

230207

Feb 7, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 2
10-15 cm

Feb 10, 2023

(mBq/kg)

10760.00

302.50

26190.00

2540.00

598.70

41.24

10610.00

348.30

705960.00

36490.00

6556.00

366.60

<127.10

(ppb or ppm)

871.56 ppb

24.5 ppb

2121.39 ppb

205.74 ppb

1053.71 ppb

72.58 ppb

2610.06 ppb

85.68 ppb

22802.51 ppm

1178.63 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

256440.00

123600.00

<999.10

93.62

66.66

10820.00

418.80

(ppb or ppm)

20.77 ppm

10.01 ppm

2661.72 ppb

103.02 ppb

CNL V03

48.4052 g

2.841

230210

Feb 10, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 1
10-15 cm

Feb 13, 2023

(mBq/kg)

9014.00

367.50

29300.00

2834.00

450.90

40.66

12620.00

403.20

807110.00

41600.00

4355.50

257.00

<51.11

(ppb or ppm)

730.13 ppb

29.77 ppb

2373.3 ppb

229.55 ppb

793.58 ppb

71.56 ppb

3104.52 ppb

99.19 ppb

26069.65 ppm

1343.68 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

128320.00

137500.00

<655.20

139.87

76.46

12320.00

461.00

(ppb or ppm)

10.39 ppm

11.14 ppm

3030.72 ppb

113.41 ppb

CNL V04

51.0620 g

3.899

230213

Feb 13, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Lemieux Island
10-15 cm

Feb 17, 2023

(mBq/kg)

12050.00

309.50

45830.00

3314.00

746.30

40.25

19810.00

552.80

641560.00

30300.00

2681.60

166.60

<71.39

(ppb or ppm)

976.05 ppb

25.07 ppb

3712.23 ppb

268.43 ppb

1313.49 ppb

70.84 ppb

4873.26 ppb

135.99 ppb

20722.39 ppm

978.69 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

641560.00

33030.00

715.55

458.00

361.53

166.60

18830.00

576.30

(ppb or ppm)

51.97 ppm

2.68 ppm

4632.18 ppb

141.77 ppb

CNL V05

39.3869 g

3.871

230217

Feb 17, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-004
10-15 cm

Feb 21, 2023

(mBq/kg)

26070.00

598.90

77410.00

5281.00

1596.00

64.14

34040.00

912.80

590410.00

30510.00

972.83

110.30

43.70

77.43

(ppb or ppm)

2111.67 ppb

48.51 ppb

6270.21 ppb

427.76 ppb

2808.96 ppb

112.89 ppb

8373.84 ppb

224.55 ppb

19070.24 ppm

985.47 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<291400.00

160.19

600.00

705.75

94.70

32860.00

933.70

(ppb or ppm)

<23.6 ppm

8083.56 ppb

229.69 ppb

CNL V06

43.9680 g

2.957

230221

Feb 21, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-003
10-15 cm

Feb 24, 2023

(mBq/kg)

19080.00

487.50

56920.00

4889.00

1207.00

62.66

41210.00

1090.00

622680.00

32210.00

4544.20

274.30

<85.05

(ppb or ppm)

1545.48 ppb

39.49 ppb

4610.52 ppb

396.01 ppb

2124.32 ppb

110.28 ppb

10137.66 ppb

268.14 ppb

20112.56 ppm

1040.38 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

286110.00

189600.00

<1059.00

715.21

105.40

40500.00

1125.00

(ppb or ppm)

23.17 ppm

15.36 ppm

9963 ppb

276.75 ppb

CNL V07

39.8567 g

3.766

230224
230228

Feb 24, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-002
10-15 cm

Feb 28, 2023

(mBq/kg)

11660.00

310.00

32310.00

2711.00

611.00

38.36

12530.00

383.40

371710.00

19330.00

5223.60

293.20

64.58

58.44

(ppb or ppm)

944.46 ppb

25.11 ppb

2617.11 ppb

219.59 ppb

1075.36 ppb

67.51 ppb

3082.38 ppb

94.32 ppb

12006.23 ppm

624.36 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

78726.00

115200.00

231.36

444.70

206.38

62.46

12400.00

430.40

(ppb or ppm)

6.38 ppm

9.33 ppm

3050.4 ppb

105.88 ppb

CNL V08

41.9112 g

2.915

29022801

Feb 28, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-005
10-15 cm

Mar 3, 2023

(mBq/kg)

23300.00

564.10

64860.00

4750.00

1431.00

65.68

29120.00

814.20

333920.00

27700.00

7712.20

427.60

<167.10

(ppb or ppm)

1887.3 ppb

45.69 ppb

5253.66 ppb

384.75 ppb

2518.56 ppb

115.6 ppb

7163.52 ppb

200.29 ppb

10785.62 ppm

894.71 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

119830.00

180100.00

1389.20

687.10

294.54

91.79

28480.00

856.40

(ppb or ppm)

9706.23 ppb

14588.1 ppb

7006.08 ppb

210.67 ppb

CNL V09

41.9332 g

3.853

230303

Mar 3, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-006
10-15 cm

Mar 7, 2023

(mBq/kg)

25500.00

581.20

68240.00

4574.00

1435.00

58.89

27010.00

739.80

539400.00

27910.00

1702.60

131.90

<93.04

(ppb or ppm)

2065.5 ppb

47.08 ppb

5527.44 ppb

370.49 ppb

2525.6 ppb

103.65 ppb

6644.46 ppb

181.99 ppb

17422.62 ppm

901.49 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

19616.00

155700.00

<1074.00

403.79

82.89

26630.00

780.60

(ppb or ppm)

1.59 ppm

12.61 ppm

6550.98 ppb

192.03 ppb

CNL V10

49.9195 g

2.724

230307

Mar 7, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Princess Sodalite Mine
10-15 cm

Mar 10, 2023

(mBq/kg)

22930.00

552.90

63690.00

4739.00

1049.00

57.99

26130.00

746.80

828250.00

42690.00

62.47

93.55

<150.30

(ppb or ppm)

1857.33 ppb

44.78 ppb

5158.89 ppb

383.86 ppb

1846.24 ppb

102.06 ppb

6427.98 ppb

183.71 ppb

26752.48 ppm

1378.89 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

<252500.00

1041.00

655.60

377.08

98.05

27410.00

831.00

(ppb or ppm)

<20.45 ppm

6742.86 ppb

204.43 ppb

CNL V11

43.4597 g

6.300

230310
230314

Mar 10, 0203

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Silver Crater Mine
10-15 cm

Mar 17, 2023

(mBq/kg)

99480.00

1861.00

341400.00

15640.00

8150.00

186.30

45590.00

1156.00

599190.00

30810.00

5185.40

287.60

<169.50

(ppb or ppm)

8057.88 ppb

150.74 ppb

27653.4 ppb

1266.84 ppb

14344 ppb

327.89 ppb

11215.14 ppb

284.38 ppb

19353.84 ppm

995.16 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

349250.00

196200.00

592.52

637.60

730.47

95.68

39990.00

1103.00

(ppb or ppm)

28.29 ppm

15.89 ppm

9837.54 ppb

271.34 ppb

CNL V12

29.3726 g

3.897

230317

Mar 17, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Silver Crate Mine 5-10 cm

Mar 21, 2023

(mBq/kg)

164900.00

3116.00

495300.00

23130.00

11780.00

279.80

52230.00

1402.00

592680.00

30740.00

9499.80

527.60

<237.60

(ppb or ppm)

13356.9 ppb

252.4 ppb

40119.3 ppb

1873.53 ppb

20732.8 ppb

492.45 ppb

12848.58 ppb

344.89 ppb

19143.56 ppm

992.9 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

117790.00

306300.00

<2320.00

849.02

151.50

47310.00

1409.00

(ppb or ppm)

9.54 ppm

24.81 ppm

11638.26 ppb

346.61 ppb

CNL V13

35.6399 g

2.878

230321

Mar 21, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-2
5-10 cm

Mar 24, 2023

(mBq/kg)

16170.00

434.50

42940.00

3753.00

733.10

53.65

14460.00

467.70

719350.00

37270.00

5218.80

313.40

<188.70

(ppb or ppm)

1309.77 ppb

35.19 ppb

3478.14 ppb

303.99 ppb

1290.26 ppb

94.42 ppb

3557.16 ppb

115.05 ppb

23235.01 ppm

1203.82 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

287490.00

175600.00

<962.90

260.74

95.67

13920.00

543.20

(ppb or ppm)

23.29 ppm

14.22 ppm

3424.32 ppb

133.63 ppb

CNL V14

17.3276 g

3.869

230324

Mar 24, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-8
5-10 cm

Mar 28, 2023

(mBq/kg)

7913.00

272.50

25650.00

2906.00

485.30

48.01

8285.00

325.40

450450.00

23810.00

16529.00

889.60

<136.30

(ppb or ppm)

640.95 ppb

22.07 ppb

2077.65 ppb

235.39 ppb

854.13 ppb

84.5 ppb

2038.11 ppb

80.05 ppb

14549.54 ppm

769.06 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

286810.00

154000.00

1499.80

717.50

96.87

85.97

7417.00

410.40

(ppb or ppm)

23.23 ppm

12.47 ppm

1824.58 ppb

100.96 ppb

CNL V15

40.0602 g

2.916

230328

Mar 28, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-5
5-10 cm

Mar 31, 2023

(mBq/kg)

16440.00

425.10

35480.00

3479.00

764.60

50.13

10810.00

366.70

704010.00

36420.00

4833.40

288.70

<138.00

(ppb or ppm)

1331.64 ppb

34.43 ppb

2873.88 ppb

281.8 ppb

1345.7 ppb

88.23 ppb

2659.26 ppb

90.21 ppb

22739.52 ppm

1176.37 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

175180.00

155600.00

716.91

608.10

130.04

84.14

10500.00

441.80

(ppb or ppm)

14.19 ppm

12.6 ppm

2583 ppb

108.68 ppb

CNL V16

45.9848 g

3.923

230331

Mar 31, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-9
10-15 cm

Apr 4, 2023

(mBq/kg)

12370.00

319.50

32200.00

2829.00

582.30

37.65

11900.00

367.90

663670.00

34190.00

3926.30

227.90

<65.56

(ppb or ppm)

1001.97 ppb

25.88 ppb

2608.2 ppb

229.15 ppb

1024.85 ppb

66.26 ppb

2927.4 ppb

90.5 ppb

21436.54 ppm

1104.34 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

41530.00

119000.00

<709.80

165.29

65.00

11400.00

412.00

(ppb or ppm)

3363.93 ppb

9639 ppb

2804.4 ppb

101.35 ppb

CNL V17

5.6586 g

6.755

230404

Apr 4, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-7
0-5 cm

Apr 11, 2023

(mBq/kg)

3382.00

206.70

17150.00

2924.00

243.20

52.88

6710.00

322.60

170070.00

9840.00

21146.00

1156.00

<73.91

(ppb or ppm)

273.94 ppb

16.74 ppb

1389.15 ppb

236.84 ppb

428.03 ppb

93.07 ppb

1650.66 ppb

79.36 ppb

5493.26 ppm

317.83 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

3012500.00

393900.00

<2021.00

250.25

85.25

6325.00

433.40

(ppb or ppm)

244.01 ppm

31.91 ppm

1555.95 ppb

106.62 ppb

CNL V18

42.6733 g

2.640

230411

Apr 11, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-9
10-15 cm

Apr 14, 2023

(mBq/kg)

8319.00

256.60

26760.00

2724.00

417.30

41.61

8318.00

298.60

618890.00

32080.00

8730.70

479.10

<177.70

(ppb or ppm)

673.84 ppb

20.78 ppb

2167.56 ppb

220.64 ppb

734.45 ppb

73.23 ppb

2046.23 ppb

73.46 ppb

19990.15 ppm

1036.18 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

108290.00

137400.00

311.44

465.10

184.44

77.41

7448.00

367.60

(ppb or ppm)

8.77 ppm

11.13 ppm

1832.21 ppb

90.43 ppb

CNL V19

41.4027 g

4.920

230414

Apr 14, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 2-6
10-15 cm

Apr 19, 2023

(mBq/kg)

9160.00

247.70

22370.00

2222.00

459.40

32.23

9486.00

298.20

647360.00

33310.00

4011.60

227.80

<56.49

(ppb or ppm)

741.96 ppb

20.06 ppb

1811.97 ppb

179.98 ppb

808.54 ppb

56.72 ppb

2333.56 ppb

73.36 ppb

20909.73 ppm

1075.91 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

124390.00

105800.00

540.29

412.50

173.60

58.73

9330.00

347.10

(ppb or ppm)

10.08 ppm

8.57 ppm

2295.18 ppb

85.39 ppb

CNL V20

29.3445 g

5.894

230419

Apr 19, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-8
5-10 cm

Apr 25, 2023

(mBq/kg)

12290.00

313.10

27040.00

2374.00

532.00

35.45

10870.00

335.90

564900.00

29100.00

13061.00

677.90

66.18

63.58

(ppb or ppm)

995.49 ppb

25.36 ppb

2190.24 ppb

192.29 ppb

936.32 ppb

62.39 ppb

2674.02 ppb

82.63 ppb

18246.27 ppm

939.93 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

145200.00

107100.00

<601.50

203.01

60.09

9552.00

371.80

(ppb or ppm)

11.76 ppm

8.68 ppm

2349.79 ppb

91.46 ppb

CNL V21

27.2959 g

6.926

230425

Apr 25, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Forest 1-1
0-5 cm

May 2, 2023

(mBq/kg)

13010.00

325.00

35750.00

2724.00

602.80

36.84

12570.00

376.40

663360.00

34110.00

18312.00

938.50

63.93

67.23

(ppb or ppm)

1053.81 ppb

26.33 ppb

2895.75 ppb

220.64 ppb

1060.93 ppb

64.84 ppb

3092.22 ppb

92.59 ppb

21426.53 ppm

1101.75 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

343740.00

119000.00

1077.00

490.80

71.45

60.62

11610.00

417.30

(ppb or ppm)

27.84 ppm

9.64 ppm

2856.06 ppb

102.66 ppb

LEGEND Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

LEGEND V01

Copper: 58.01 g

22.462

240125

Jan 25, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Majorana Copper Embedded into Teflon Holder

Teflon: 275.132 g

Feb 9, 2024

(mBq/kg)

<0.75

8.16

27.66

<0.88

<1.58

<9.16

<0.97

<0.52

Feb 26, 2024

(ppb or ppm)

<60.75 ppt

0.66 ppb

2.24 ppb

<1.55 ppb

<0.39 ppb

<295.87 ppb

March 5,2024

Results:

210Pb:

7Be:

54Mn:

228Ac:

57Co

58Co

(mBq/kg)

5230.70

2585.00

<9.68

0.56

0.53

<2.17

<1.55

<1.06

(ppb or ppm)

0.42 ppm

0.21 ppm

<0.53 ppb

DarT Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

DArT V01

McMaster-Carr

823.8 g

26.570

240315
24031801

Mar 15, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Acrylic Sheet

PN; 8560K222

Apr 11, 2024

(mBq/kg)

0.60

0.53

<19.40

<0.31

<0.51

<6.36

<0.35

<0.26

Units: 50

(ppb or ppm)

48.2 ppt

43.25 ppt

<1.57 ppb

<0.55 ppb

<125.46 ppt

<205.43 ppb

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

3874.50

1856.00

<3.71

0.22

0.26

<0.75

(ppb or ppm)

313.83 ppb

150.34 ppb

<184.5 ppt

In Progress Sample Measurements Counted on the Vue des Alpes Detector

In Progress and To Be Measured:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

Background 11

N/A

35.762

23092101
230928
230929
23092901
230930
23093001
231001
231003
231008
231012
231014
231018
23101801
231020
231023
231024
231025
231116

Sep 21 –
Oct 26, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Completely Empty Detector

Nov 16- 22, 2023

(mBq)

1.78

0.18

4.95

2.40

0.066

0.054

1.52

0.19

13.04

1.74

0.35

0.12

<0.16

Results:

7Be:

54Mn:

228Ac:

(mBq)

153.23

30.36

1.15

0.78

<0.16

1.05

0.32

SNOLAB V35

Medium Grey

107.4 g

1.276

240430

Apr 30, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Sikafloor 22NA PurCem

Type: SS-0721

(mBq/kg)

6096.00

188.30

16150.00

1853.00

290.40

29.44

5830.00

210.10

351500.00

18310.00

40.69

51.89

<62.20

(ppb or ppm)

493.78 ppb

15.25 ppb

1308.15 ppb

150.09 ppb

511.1 ppb

51.81 ppb

1.43 ppm

0.05 ppm

11353.45 ppm

591.41 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

11187.00

13800.00

165.85

361.20

68.98

52.77

6692.00

295.40

(ppb or ppm)

906.15 ppb

1117.8 ppb

1.65 ppm

0.07 ppm

SNOLAB V36

200.5 g

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Cadbury Dark Chocolate

Made in Canada

(mBq/kg)

(ppb or ppm)

0 ppb

0 ppm

Results:

210Pb:

7Be:

54Mn:

228Ac:

(mBq/kg)

(ppb or ppm)

Err:502

0 ppb

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)