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

SNO+ Measurements:

Sample Description

Mass (g)

Live Time (days)

Run Numbers

Counting Dates
(if applicable)

SNO+ L01

ThermoFisher Scientific

506.3 g

12.263

210408

Apr 8, 2021

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Butylated Hydroxytoluene

Generally called BHT

Apr 21, 2021

(mBq/kg)

<0.69

<8.00

0.21

0.19

0.79

0.54

<2.21

<0.32

<0.21

(ppm / ppb / ppt)

<55.89 ppt

<0.65 ppb

0.36 ppb

0.34 ppb

194.36 ppt

132.23 ppt

<71.38 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

<543.70

1.48

1.78

<0.20

<1.34

(ppm / ppb / ppt)

<44.04 ppb

<329.64 ppt

SNO+ L02

Lot Number: 72B10

90.233 g

23.748

220615
220621
22070101

Jun 15, 2022

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

BIS-MSB
1,4-bis-
(2-Methylstyryl)-Benzene

Cas Number: 13280-61-0

220707
22070701
22070706

Jul 12, 2022

(mBq/kg)

<0.34

49.36

22.70

1.80

0.58

<2.85

<12.16

<1.39

Curtiss Laboratories, Ivyland, PA

(ppm / ppb / ppt)

<27.54 ppt

4 ppb

1.84 ppb

3.17 ppb

1.03 ppb

<0.7 ppb

<392.77 ppb

Results:

210Pb:

7Be:

54Mn

228Ac:

(mBq/kg)

898.76

816.20

5.60

6.67

0.60

0.73

8.50

3.28

(ppm / ppb / ppt)

72.8 ppb

66.11 ppb

2.09 ppb

0.81 ppb

SNO+ L03

Lucas cell cylinder. R=25mm, h=~82.5mm

138.7 g

23.568

240827

Aug 27, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Lucas Cell

SN: L11

Sep 16, 2024

(mBq/kg)

<0.28

19.05

15.06

<0.54

1.16

1.41

10.45

10.63

<0.73

<0.75

(ppm / ppb / ppt)

<22.68 ppt

1.54 ppb

1.22 ppb

<0.95 ppb

0.29 ppb

0.35 ppb

337.6 ppb

343.35 ppb

Results:

210Pb

7Be

54Mn

228Ac

(mBq/kg)

<703.30

<6.16

0.89

0.57

2.57

2.35

(ppm / ppb / ppt)

<56.97 ppb

0.63 ppb

0.58 ppb

SNO+ L04

Lucas cell cylinder. R=25mm, h=~82.5mm

147.1 g

18.173

240920
24092001
240930
241002

Sep 20, 2024

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

Lucas Cell

SN: N8

Oct 9, 2024

(mBq/kg)

<0.35

<20.62

<0.40

<1.27

38.55

13.28

<1.51

<0.40

(ppm / ppb / ppt)

<28.35 ppt

<1.67 ppb

<0.7 ppb

<0.31 ppb

1245.17 ppb

428.94 ppb

Results:

210Pb

7Be

54Mn

228Ac

(mBq/kg)

389.18

600.60

<8.21

<0.89

2.81

2.50

(ppm / ppb / ppt)

31.52 ppb

48.65 ppb

0.69 ppb

0.62 ppb

SNO+ L05

70.2 g

10.791

250224

Feb 24, 2025

Results:

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

ZnS (Ag) Powder

Mar 7, 2025

(mBq/kg)

<0.68

79.47

78.19

2.27

1.19

2.35

3.50

45.95

27.64

1.11

1.51

<1.40

(ppm / ppb / ppt)

<55.08 ppt

6.44 ppb

6.33 ppb

4 ppb

2.09 ppb

0.58 ppb

0.86 ppb

1.48 ppm

0.89 ppm

Results:

210Pb

7Be

54Mn

228Ac

(mBq/kg)

<19470.00

5.94

10.19

<1.28

12.85

6.01

(ppm / ppb / ppt)

<1.58 ppm

3.16 ppb

1.48 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)