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

CNL Measurements:

Sample Description

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

CNL L01

50.0372 g

4.513

230202
230206
23020601

Feb 2, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 3
5-10 cm

Feb 7, 2023

(mBq/kg)

12120.00

289.20

23280.00

1683.00

674.80

30.01

13640.00

379.20

772530.00

39640.00

4531.40

242.60

<34.23

(ppm / ppb / ppt)

981.72 ppb

23.43 ppb

1885.68 ppb

136.32 ppb

1187.65 ppb

52.82 ppb

3355.44 ppb

93.28 ppb

24952.72 ppm

1280.37 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

46371.00

11990.00

268.51

315.30

74.18

42.67

14260.00

422.60

(ppm / ppb / ppt)

3756.05 ppb

971.19 ppb

3507.96 ppb

103.96 ppb

CNL L02

35.2883 g

3.020

230207

Feb 7, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 2
5-10 cm

Feb 10, 2023

(mBq/kg)

13840.00

362.70

32300.00

2389.00

740.00

42.75

15200.00

459.30

851780.00

43900.00

7007.30

381.40

<83.91

(ppm / ppb / ppt)

1121.04 ppb

29.38 ppb

2616.3 ppb

193.51 ppb

1302.4 ppb

75.24 ppb

3739.2 ppb

112.99 ppb

27512.49 ppm

1417.97 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

51108.00

18120.00

<725.60

149.84

67.56

15410.00

525.70

(ppm / ppb / ppt)

4139.75 ppb

1467.72 ppb

3790.86 ppb

129.32 ppb

CNL L03

49.0868 g

2.847

230210

Feb 10, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Pembroke Site 1
5-10 cm

Feb 13, 2023

(mBq/kg)

10900.00

287.60

25350.00

2009.00

581.20

35.80

16090.00

460.20

870580.00

44750.00

4913.60

270.90

97.65

64.10

(ppm / ppb / ppt)

882.9 ppb

23.3 ppb

2053.35 ppb

162.73 ppb

1022.91 ppb

63.01 ppb

3958.14 ppb

113.21 ppb

28119.73 ppm

1445.43 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

61764.00

15690.00

<875.80

165.85

58.95

15530.00

496.70

(ppm / ppb / ppt)

5002.88 ppb

1270.89 ppb

3820.38 ppb

122.19 ppb

CNL L04

46.3664 g

3.923

230213

Feb 13, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Lemieux Island
5-10 cm

Feb 17, 2023

(mBq/kg)

13840.00

334.20

33370.00

2273.00

847.90

36.86

22280.00

588.90

683560.00

35130.00

3073.00

175.50

<88.01

(ppm / ppb / ppt)

1121.04 ppb

27.07 ppb

2702.97 ppb

184.11 ppb

1492.3 ppb

64.87 ppb

5480.88 ppb

144.87 ppb

22078.99 ppm

1134.7 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

35399.00

13900.00

<641.20

91.44

50.27

21760.00

610.20

(ppm / ppb / ppt)

2867.32 ppb

1125.9 ppb

5352.96 ppb

150.11 ppb

CNL L05

38.0314 g

3.881

230217

Feb 17, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-004
5-10 cm

Feb 21, 2023

(mBq/kg)

27360.00

607.20

56990.00

3479.00

1726.00

59.29

34620.00

896.20

640220.00

32980.00

2050.00

135.20

<107.80

(ppm / ppb / ppt)

2216.16 ppb

49.18 ppb

4616.19 ppb

281.8 ppb

3037.76 ppb

104.35 ppb

8516.52 ppb

220.47 ppb

20679.11 ppm

1065.25 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

46425.00

18250.00

1136.30

474.30

257.19

65.65

34940.00

918.80

(ppm / ppb / ppt)

3760.43 ppb

1478.25 ppb

8595.24 ppb

226.02 ppb

CNL L06

43.2873 g

2.972

230221

Feb 21, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-003
5-10 cm

Feb 24, 2023

(mBq/kg)

21470.00

505.40

14750.00

3172.00

1395.00

56.39

43640.00

1108.00

668350.00

34450.00

6942.10

375.40

51.24

66.57

(ppm / ppb / ppt)

1739.07 ppb

40.94 ppb

1194.75 ppb

256.93 ppb

2455.2 ppb

99.25 ppb

10735.44 ppb

272.57 ppb

21587.71 ppm

1112.74 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

41776.00

18790.00

<950.40

381.88

75.62

42120.00

1105.00

(ppm / ppb / ppt)

3383.86 ppb

1521.99 ppb

10361.52 ppb

271.83 ppb

CNL L07

29.6233 g

3.805

230224
230228

Feb 24, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-002
5-10 cm

Feb 28, 2023

(mBq/kg)

13730.00

340.60

22190.00

1716.00

730.50

36.79

12410.00

374.30

387860.00

20150.00

17443.00

898.50

<60.86

(ppm / ppb / ppt)

1112.13 ppb

27.59 ppb

1797.39 ppb

139 ppb

1285.68 ppb

64.75 ppb

3052.86 ppb

92.08 ppb

12527.88 ppm

650.85 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

87983.00

13800.00

136.54

417.70

29.12

47.20

12940.00

430.20

(ppm / ppb / ppt)

7126.62 ppb

1117.8 ppb

3183.24 ppb

105.83 ppb

CNL L08

38.9419 g

2.930

23022801

Feb 28, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-005
5-10 cm

Mar 3, 2023

(mBq/kg)

23480.00

549.00

46310.00

3136.00

1362.00

56.18

29960.00

800.90

575930.00

29770.00

9097.30

484.20

<94.01

(ppm / ppb / ppt)

1901.88 ppb

44.47 ppb

3751.11 ppb

254.02 ppb

2397.12 ppb

98.88 ppb

7370.16 ppb

197.02 ppb

18602.54 ppm

961.57 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

78910.00

20130.00

<1173.00

231.67

69.35

29180.00

830.90

(ppm / ppb / ppt)

6391.71 ppb

1630.53 ppb

7178.28 ppb

204.4 ppb

CNL L09

47.0206 g

3.874

230303

Mar 3, 2023

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

22-ES-006
5-10 cm

Mar 7, 2023

(mBq/kg)

26910.00

576.00

50430.00

3057.00

1507.00

51.39

29430.00

757.70

583440.00

30020.00

1403.70

99.72

<69.28

(ppm / ppb / ppt)

2179.71 ppb

46.66 ppb

4084.83 ppb

247.62 ppb

2652.32 ppb

90.45 ppb

7239.78 ppb

186.39 ppb

18845.11 ppm

969.65 ppm

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

45891.00

15500.00

587.81

396.20

106.96

53.53

28430.00

761.70

(ppm / ppb / ppt)

3717.17 ppb

1255.5 ppb

6993.78 ppb

187.38 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:

(mBq/kg)

(ppm / ppb / ppt)