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

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

miniCLEAN and CLEAN Measurements:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

CLEAN 1

Hamamatsu R5912

894.3

5.972

Sep 6, 2006

(mBq/kg)

904.74

+/-

24.68

480.54

+/-

145.78

46.09

3.97

471.02

+/-

14.99

2986.25

+/-

175.35

1.80

+/-

3.10

<1.35

Photomultiplier Tube

Entire Tube

Sep 14, 2006

(ppb)

73.28 ppb

+/-

2.00 ppb

38.91 ppb

+/-

11.81 ppb

81.12 ppb

6.98 ppb

115.87 ppb

+/-

3.69 ppb

96.45 ppm

+/-

5.66 ppm

CLEAN 2

Hamamatsu R5912

714.7

5.592

Sep 14, 2006

(mBq/kg)

1274.86

+/-

34.2

1278.44

+/-

391.63

50.32

4.29

691.89

+/-

21.25

3623.29

+/-

214.94

2.60

+/-

3.90

1.31

+/-

2.25

Photomultiplier Tube

Glass Only

Sep 21, 2006

(ppb)

103.26 ppb

+/-

2.77 ppb

103.55 ppb

+/-

31.72 ppb

88.55 ppb

7.56 ppb

170.21 ppb

+/-

5.23 ppb

117.32 ppm

+/-

6.94 ppm

CLEAN 3

Hamamatsu R5912

147.0

3.746

Sep 21, 2006

(mBq/kg)

15.08

+/-

6.98

46.3

+/-

10.73

2412.24

+/-

270.07

7.48

+/-

6.94

17.01

+/-

5.31

54Mn Signal:

Photomultiplier Tube

Metal Only

Sep 27, 2006

(ppb)

1.22 ppb

+/-

0.57 ppb

11.39 ppb

+/-

2.64 ppb

77.92 ppm

+/-

8.72 ppm

10.88 mBq/kg

+/-

4.76 mBq/kg

CLEAN 4

Hamamatsu R5912

32.6

3.004

Sep 29, 2006

(mBq/kg)

1221.51

+/-

103.42

12668.19

+/-

3303.77

608.07

97.02

382.74

+/-

72.19

20736.2

+/-

1969.33

N/A

Photomultiplier Tube

Ceramic Only

Oct 5, 2006

(ppb)

98.84 ppb

+/-

8.38 ppb

1026.12 ppb

+/-

267.61 ppb

1070.21 ppb

170.75 ppb

94.15 ppb

+/-

17.76 ppb

669.78 ppm

+/-

63.61 ppm

CLEAN 5

Kings UG 21 D/U

81.1

8.909

Dec 1, 2006

(mBq/kg)

9.49

+/-

4.22

11.64

+/-

4.78

2991.99

+/-

223.67

6.78

+/-

4.49

4.63

+/-

2.55

54Mn Signal:

High Voltage Connector

Dec 15, 2006

(ppb)

0.77 ppb

+/-

0.34 ppb

2.86 ppb

+/-

1.18 ppb

96.64 ppm

+/-

7.22 ppm

3.70 mBq/kg

+/-

2.47 mBq/kg

CLEAN 6

2 thick pieces, (1.9 cm, each disc)

3863.49

13.476

Dec 12, 2007

(mBq/kg)

0.92

+/-

0.39

2.86

+/-

0.49

1.84

+/-

2.31

1.35

+/-

0.37

3.73

+/-

0.38

54Mn Signal:

Steel Sample A

Yard Metals, Southington, CT (316L 3/4” Stock) Milled at North American Stainless

Jan 3, 2008

(ppb)

0.07 ppb

+/-

0.03 ppb

0.63 ppb

+/-

0.12 ppb

59.36 ppb

+/-

74.65 ppb

2.33 mBq/kg

+/-

0.39 mBq/kg

CLEAN 7

7 medium thick pieces (0.6 cm, each disc)

4106.14

12.493

Jan 3, 2008

(mBq/kg)

2.09

+/-

0.47

2.31

+/-

0.48

3.00

+/-

2.46

0.93

+/-

0.37

6.99

+/-

0.57

54Mn Signal:

Steel Sample B

Yard Metals, Southington, CT (316L ¼” Stock), Milled at Allegheny-Ludlum

Jan 16, 2008

(ppb)

0.17 ppb

+/-

0.04 ppb

0.57 ppb

+/-

0.12 ppb

96.76 ppb

+/-

79.37 ppb

1.90 mBq/kg

+/-

0.39 mBq/kg

CLEAN 8

15 thin pieces (0.3 cm, each disc)

4065.2

20.562

Jan 16, 2008

(mBq/kg)

<0.44

3.37

+/-

0.43

5.09

+/-

2.08

0.86

+/-

0.28

11.70

+/-

0.59

54Mn Signal:

Steel Sample C

Yard Metals, Southington, CT (316L 1/8” Stock), Milled at Allegheny-Ludlum

Jan 30, 2008

(ppb)

<0.04 ppb

0.83 ppb

+/-

0.11 ppb

164.47 ppb

+/-

67.12 ppb

1.84 mBq/kg

+/-

0.16 mBq/kg

CLEAN 9

Thick discs, 4 discs at 1.3 cm per disc

5547.0

13.656

Apr 28, 2008

(mBq/kg)

0.19

+/-

0.37

4.98

+/-

0.62

5.55

+/-

2.29

1.57

+/-

0.42

11.19

+/-

0.78

54Mn Signal:

Steel Sample D

Made in Germany by Nironit (316 Ti, 15 mm stock)

May 12, 2008

(ppb)

0.02 ppb

+/-

0.03 ppb

1.22 ppb

+/-

0.15 ppb

179.35 ppb

+/-

74.12 ppb

1.62 mBq/kg

+/-

0.34 mBq/kg

CLEAN 10

Medium Thick discs, 12 discs each at 4.1 mm thick

5045.7

10.150

May 12, 2008

(mBq/kg)

1.35

+/-

0.66

9.13

+/-

0.94

5.97

+/-

3.21

1.37

+/-

0.52

14.06

+/-

1.01

54Mn Signal:

Steel Sample E

Made in Germany by Nironit (316Ti, 5 mm stock)

May 23, 2008

(ppb)

0.11 ppb

+/-

0.05 ppb

2.24 ppb

+/-

0.23 ppb

192.68 ppb

+/-

103.57 ppb

2.68 mBq/kg

+/-

0.50 mBq/kg

Sample Description

Manufacturer

Mass (g)

Live Time (days)

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

CLEAN 11

Thin discs, 21 discs, each disc at 2mm thick

4529.4

9.498

May 23, 2008

(mBq/kg)

0.59

+/-

0.66

1.56

+/-

0.64

3.75

+/-

2.98

1.06

+/-

0.53

14.86

+/-

1.1

54Mn Signal:

Steel Sample F

Made in Germany by Nironit (316Ti, 3 mm stock)

Jun 2, 2008

(ppb)

0.05 ppb

+/-

0.05 ppb

0.38 ppb

+/-

0.16 ppb

121.23 ppb

+/-

96.38 ppb

1.92 mBq/kg

+/-

0.51 mBq/kg

CLEAN 12

Swagelok Pieces

2150.2

6.716

Jun 13, 2008

(mBq/kg)

6.36

+/-

0.67

4.26

+/-

0.61

0.47

+/-

3.53

0.14

+/-

0.38

12.05

+/-

0.81

54Mn Signal:

1. 100 gaskets at 1.2g each,
2. MF Nut combinations (5), 3. Long Socket Weld Glands (6),
4. Solid VCR Bodies,
5. Welded Assemblies,
6. Butt Weld Glands (5)

Combination of several swagelok pieces:
sample 1 SS-8, sample 2-5, 316SS,
sample 6 6LV SS

Combined mass of all pieces

Jun 20, 2008

(ppb)

0.52 ppb

+/-

0.05 ppb

1.05 ppb

+/-

0.15 ppb

15.02 ppb

+/-

114.01 ppb

4.33 mBq/kg

+/-

0.60 mBq/kg

CLEAN 13

Aluminized Mylar

56.6

10.255

Jun 2, 2008

(mBq/kg)

154.55

+/-

19.41

189.05

498.23

26.50

15.52

<10.80

91.87

+/-

119.11

7.07

+/-

9.51

<5.06

210Po:

Super Insulation

Mylar is polyethylene terephthalate polyester

Jun 13, 2008

(ppb)

12.51 ppb

+/-

1.57 ppb

15.31 ppb

40.36 ppb

46.63 ppb

27.31 ppb

<2.66 ppb

2.97 ppm

+/-

3.85 ppm

<551.35 Bq/kg

CLEAN 14

Aluminized Mylar

23.0

11.827

Jul 3, 2008

(mBq/kg)

246.03

+/-

30.62

2808.70

1278.26

24.73

29.80

<10.44

91.30

+/-

233.33

17.39

+/-

23.41

<3.76

210Po:

Special Super Insulation

mylar is polyethylene terephthalate polyester

Jul 15, 2008

(ppb)

19.93 ppb

+/-

2.48 ppb

227.50 ppb

103.54 ppb

43.53 ppb

52.45 ppb

<2.57 ppb

2.95 ppm

+/-

7.54 ppm

< 488.20 Bq/kg

CLEAN 15

1,1,4,4-tetraphenyl-1,3-butadiene, Batch #: 16497KJ

498.50

10.794

Oct 17, 2008

(mBq/kg)

1.63

+/-

1.01

0.47

+/-

1.11

8.22

+/-

12.03

<0.35

<0.12

7Be:

Cosmic Ray Produced

TPB

Sigma-Aldrich Chemie GmbH, Made in UK

Oct 28, 2008

(ppb or ppm)

0.13 ppb

+/-

0.08 ppb

0.12 ppb

+/-

0.27 ppb

265.39 ppb

+/-

388.43 ppb

28.46 mBq/kg

+/-

6.81 mBq/kg

CLEAN 16

Thermometers from Omega

Qty: 150

9.581

Feb 10, 2009

(mBq/kg)

1001.96

149.68

423.93

122.24

<2054.07

<11.00

<14.17

54Mn Signal:

Thermometers

Part#: F2020-100-1/3B-100
Lot#: PL084101

Mass: 2.6 g

Feb 20, 2009

(ppb or ppm)

81.16 ppb

12.12 ppb

142.84 ppb

30.07 ppb

<66.35 ppm

38.46 mBq/kg

+/-

38.46 mBq/kg

(mBq/thermometer)

0.017

0.003

0.007

0.002

<0.035

<0.0002

0.001

CLEAN 17

Nanopure Insulation Panel

175.6

9.924

Feb 20, 2009

(mBq/kg)

8.12

3.47

3.41

3.05

412.30

66.90

11.39

3.60

0.28

1.27

Vacuum Insulation Panels

Mar 2, 2009

(ppb or ppm)

0.66 ppb

0.28 ppb

0.84 ppb

0.75 ppb

13.32 ppm

2.16 ppm

CLEAN 18

Harris Products Group

904.0

7.507

Mar 16, 2009

(mBq/kg)

1.01

0.71

2.80

0.80

<1.45

<0.90

3.83

0.67

Stainless Steel TIG

Model: ER316L

Mar 25, 2009

(ppb or ppm)

0.08 ppb

0.06 ppb

0.69 ppb

0.20 ppb

<46.81 ppb

CLEAN 19

Two disks, each disk is ¾ inches thick and 6 inches in diameter

947.0 g

13.833

Mar 25, 2009

(mBq/kg)

<0.35

0.49

0.59

15.31

8.11

1.80

0.77

0.11

0.14

7Be:

Cosmic Ray Produced

Cylinder of White Acrylic

Apr 8, 2009

(ppb or ppm)

<0.03 ppb

0.12 ppb

0.15 ppb

494.56 ppb

262.10 ppb

4.75 mBq/kg

3.38 mBq/kg

CLEAN 20

HEAT 0287-1

2010.9 g

3.929

May 15, 2008

(mBq/kg)

73659.80

2296.32

140521.21

8740.25

8018.14

411.46

22850.48

588.17

38351.29

2917.50

N /A

N/A

Spool of Flux Cored Stainless Steel Wire

Model: E316LT1-1/4 0.045

May 19, 2008

(ppb or ppm)

5.97 ppm

0.19 ppm

11.38 ppm

0.71 ppm

14.11 ppm

0.72 ppm

5.62 ppm

0.14 ppm

1.24%

0.09%

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

CLEAN 21

HT 606974

3894.85 g

7.914

May 25, 2009

(mBq/kg)

0.63

0.15

6.68

9.58

0.62

0.15

<0.97

<0.15

6.51

0.41

54Mn Signal:

Stainless Steel 316L

4 squares, each is 3” by 3” and 3/4” thick

Jun 2, 2009

(ppb or ppm)

0.051 ppb

0.012 ppb

0.54 ppb

0.78 ppb

0.15 ppb

0.04 ppb

<31.27 ppb

1.26 mBq/kg

0.15 mBq/kg

CLEAN 22

HT 838685

3330.8 g

6.845

Aug 24, 2009

(mBq/kg)

0.89

0.15

0.58

0.14

<1.28

<0.09

3.11

0.23

54Mn Signal:

Stainless Steel 316L

4 squares, each is 10 cm by 10 cm and 1 cm thick

Aug 31, 2009

(ppb or ppm)

0.072 ppb

0.013 ppb

0.14 ppb

0.03 ppb

<41.33 ppb

1.02 mBq/kg

0.15 mBq/kg

CLEAN 23

HT 607664

5099.6 g

5.268

May 19, 2009

(mBq/kg)

0.10

0.13

48.61

31.92

0.69

0.18

<1.01

<0.11

5.31

0.35

54Mn Signal:

Stainless Steel 316L

4 squares, each is 3” by 3” and 1” thick

May 25, 2009

(ppb or ppm)

0.008 ppb

0.011 ppb

3.94 ppb

2.59 ppb

0.17 ppb

0.04 ppb

<32.48 ppb

1.10 mBq/kg

+/-

0.16 mBq/kg

CLEAN 24

HT 844397

4340.1 g

2.955

Aug 11, 2009

(mBq/kg)

3.08

1.17

2.75

1.23

6.20

5.76

<0.87

22.89

2.07

54Mn Signal:

Stainless Steel 316L

2 pieces, each is 10.4 cm by 6.1 cm and 4.5 cm thick

Aug 14, 2009

(ppb or ppm)

0.249 ppb

0.095 ppb

0.68 ppb

0.30 ppb

200.15 ppb

186.12 ppb

5.64 mBq/kg

1.31 mbq/kg

CLEAN 25

HT 6072235

3218.15 g

7.016

Jun 8, 2009

(mBq/kg)

0.92

0.74

3.52

0.87

<3.65

1.21

0.69

19.61

1.48

54Mn Signal:

Stainless Steel 316L

4 squares, each is 10 cm by 10 cm and 1 cm thick

Jun 15, 2009

(ppb or ppm)

0.074 ppb

0.060 ppb

0.87 ppb

0.21 ppb

<118.05 ppb

4.88 mBq/kg

0.87 mBq/kg

CLEAN 26

HT 482375-001

1158.0 g

5.955

Jul 9, 2009

(mBq/kg)

2.55

1.12

7.63

1.37

3.20

7.38

1.04

1.05

13.520

1.44

54Mn Signal:

Stainless Steel 316L

1 square, 6” by 6” and 1/4” thick

Jul 15, 2009

(ppb or ppm)

0.206 ppb

0.091 ppb

1.88 ppb

0.34 ppb

103.20 ppb

238.32 ppb

2.68 mBq/kg

0.86 mBq/kg

CLEAN 27

HT 607354

593.95 g

5.895

Jul 30, 2009

(mBq/kg)

6.91

4.88

3.59

2.37

<5.37

2.02

4.39

1228.05

66.50

54Mn Signal:

Stainless Steel 316L

1 square, 3” by 3” and 1/2” thick

Aug 5, 2009

(ppb or ppm)

0.56 ppb

0.40 ppb

0.88 ppb

0.58 ppb

<173.40 ppb

<7.91 mBq/kg

CLEAN 28

HT 823337

618.45 g

6.984

Aug 17, 2009

(mBq/kg)

<1.15

<0.514

<2.10

0.97

1.02

8.21

1.20

54Mn Signal:

Stainless Steel (Flattened Pipe)

4 squares, each is 2” by 2” and 1/4” thick

Aug 24, 2008

(ppb or ppm)

<0.093 ppb

<0.126 ppb

<67.96 ppb

5.66 mBq/kg

1.13 mBq/kg

CLEAN 29

HT 605761

729.45 g

6.952

Jun 17, 2009

(mBq/kg)

0.46

1.06

4.25

1.19

<1.91

<0.87

18.31

1.70

54Mn Signal:

Stainless Steel (Flattened Pipe)

1 square, 4” by 3 3/4” and 3/8” thick

Jun 24, 2009

(ppb or ppm)

0.037 ppb

0.086 ppb

1.05 ppb

0.29 ppb

<61.80 ppb

5.76 mBq/kg

1.10 mBq/kg

CLEAN 30

HT 464751

712.95 g

6.629

Jul 2, 2009

(mBq/kg)

1.86

1.12

<0.97

<2.86

<0.30

11.63

1.34

54Mn Signal:

Stainless Steel (Flattened Pipe)

1 square, 4” by 4” and 3/8” thick

Jul 9, 2009

(ppb or ppm)

0.151 ppb

0.091 ppb

<0.24 ppb

<92.52 ppb

2.81 mBq/kg

0.84 mBq/kg

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

CLEAN 31

HT 820950

403.75 g

11.626

Jul 16, 2009

(mBq/kg)

<0.97

<0.070

<2.01

1.24

1.33

8.67

1.07

54Mn Signal:

Stainless Steel (Flattened Pipe)

1 square, 4” by 3 3/4” and 3/16” thick

Jul 28, 2009

(ppb or ppm)

<0.079 ppb

<0.017 ppb

<64.90 ppb

5.45 mBq/kg

0.99 mBq/kg

CLEAN 32

HT 606975

3260.4 g

5.839

Aug 5, 2009

(mBq/kg)

3.48

0.97

2.31

0.87

<1.49

1.07

0.74

28.58

2.03

54Mn Signal:

Stainless Steel 316L

1 square, 4.5” by 4.5” and 1 1/4” thick

Aug 11, 2009

(ppb or ppm)

0.282 ppb

0.079 ppb

0.57 ppb

0.22 ppb

<48.24 ppb

3.47 mBq/kg

0.83 mBq/kg

CLEAN 33

Lot: 1638-82, 8/12 mesh

273.3 g

1.962

Jun 15, 2009

(mBq/kg)

16816.01

553.02

5301.00

163.96

59441.64

4605.57

<24.90

27.37

22.28

Molecular Sieve 5A (Activated)

Supelco, 595 Harrison Road, Bellefonte, PA, USA

Jun 17, 2009

(ppb or ppm)

1.362 ppm

0.045 ppm

1.304 ppm

0.040 ppm

1.92%

0.15%

CLEAN 34

Welding Rods Used in Cube Hall Steel Structure

69.9 g

0.255

Mar 25, 2010

(mBq/kg)

488.39

100.19

88.25

215.84

43.33

48.41

2550.79

1044.91

<3.50

10.59

34.34

Welding Rod Core

Mar 25, 2010

(ppb or ppm)

39.56 ppb

8.11 ppb

155.31 ppb

379.88 ppb

10.66 ppb

11.91 ppb

82.39 ppm

33.75 ppm

CLEAN 35

Welding Rods Used in Cube Hall Steel Structure

40.8 g

0.259

Mar 12, 2010

(mBq/kg)

40577.08

1906.86

13046.57

36041.67

4767.97

631.30

8060.78

573.38

326708.33

29098.10

<58.86

40.26

223.48

Welding Rod Flux

Mar 12, 2010

(ppb or ppm)

3.29 ppm

0.15 ppm

1.06 ppm

2.92 ppm

8.39 ppm

1.11 ppm

1.99 ppm

0.14 ppm

1.06%

0.09%

CLEAN 36

Hemisphere 1 SDGU SA240316L 1-AA

1458.45 g

6.993

Jun 4, 2010

(mBq/kg)

2.72

1.19

<8.54

5.00

2.22

7.46

1.44

8.57

8.19

1.51

0.97

19.25

1.77

54Mn Signal:

Stainless Steel (316L)

Cylinder 2” Tall, 2.75” diameter

Jun 11, 2010

(ppb or ppm)

0.22 ppb

0.10 ppb

<0.69 ppb

8.80 ppb

3.90 ppb

1.84 ppb

0.35 ppb

276.83 ppb

264.51 ppb

5.76 mBq/kg

1.23 mBq/kg

CLEAN 37

Hemisphere 2 SDGT SA240316L 1-A

1789.05 g

8.923

May 12, 2010

(mBq/kg)

1.66

0.93

112.52

74.23

2.55

1.71

8.70

1.28

19.73

7.39

0.06

0.62

19.36

1.56

54Mn Signal:

Stainless Steel (316L)

Cylinder 2” Tall, 3” diameter

May 21, 2010

(ppb or ppm)

0.14 ppb

0.08 ppb

9.11 ppb

6.01 ppb

4.49 ppb

3.00 ppb

2.14 ppb

0.31 ppb

637.32 ppb

238.67 ppb

3.13 mBq/kg

0.78 mBq/kg

CLEAN 38

Nozzel Material Heat# 607142

1761.1 g

6.961

Apr 26, 2010

(mBq/kg)

4.60

1.13

139.17

71.66

0.44

1.79

7.78

1.25

7.55

6.62

0.34

0.80

15.36

1.41

54Mn Signal:

Stainless Steel (316L Plate)

1.4” thick, 3.125” x 3.125”

May 3, 2010

(ppb or ppm)

0.37 ppb

0.09 ppb

11.27 ppb

5.80 ppb

0.77 ppb

3.15 ppb

1.91 ppb

0.31 ppb

243.93 ppb

213.67 ppb

9.60 mBq/kg

1.36 mBq/kg

CLEAN 39

Thick Wall Material For Ports Heat# 604774

1470.1 g

6.008

Jun 16, 2010

(mBq/kg)

3.93

1.11

91.35

84.55

<1.90

5.28

1.19 ppb

7.89

7.26

1.50

0.89

28.78

2.19

54Mn Signal:

Stainless Steel (316L Plate)

0.625” thick, 4.25” x 4.25”

Jun 22, 2010

(ppb or ppm)

0.32 ppb

0.09 ppb

7.40 ppb

6.85 ppb

<3.34 ppb

1.30 ppb

0.29 ppb

254.87 ppb

234.51 ppb

4.56 mBq/kg

1.09 mBq/kg

CLEAN 40

Foot Gusset Plates Heat# 607832

442.9 g

6.119

Jun 28, 2010

(mBq/kg)

0.07

1.35

93.93

76.99

0.03

2.01

2.11

1.51

<2.28

0.90

1.43

15.64

1.84

54Mn Signal:

Stainless Steel (316L Plate)

0.375” thick, 3” x 3”

Jul 5, 2010

(ppb or ppm)

0.006 ppb

0.110 ppb

7.61 ppb

6.24 ppb

0.05 ppb

3.54ppb

0.52 ppb

0.37 ppb

<73.58

7.23 mBq/kg

1.58 mBq/kg

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

CLEAN 41

Lower Cylinder Replacement Flanges, Heat# 847082

4410.0 g

5.572

Jun 22, 2010

(mBq/kg)

3.44

1.06

<60.76

1.73

1.99

11.05

1.38

11.77

6.06

1.72

0.82

13.55

1.26

54Mn Signal:

Stainless Steel (316L Plate)

2.8” thick, 3.5” x 3.5”

Jun 28, 2010

(ppb or ppm)

0.28 ppb

0.09 ppb

<4.92 ppb

3.04 ppb

3.50 ppb

2.72 ppb

0.34 ppb

380.13 ppb

195.62 ppb

5.99 mBq/kg

1.09 mBq/kg

CLEAN 42

316L S.S.

54.9 g

5.927

Mar 30, 2011

(mBq/kg)

12.56

12.54

185.79

763.21

<4.17

6.39

10.37

196.72

158.47

5.46

14.57

<6.65

SS Welding Wire

Nominal Dimensions:
36” Long,
0.045” Diameter

Apr 5, 2011

(ppb or ppm)

1.02 ppb

15.05 ppb

61.82 ppb

<7.34 ppb

1.57 ppb

2.55 ppb

6.35 ppm

5.12 ppm

CLEAN 43

778.2 g

3.913

Sept 12, 2011

(mBq/kg)

18.35

2.40

<1.52

<2.16

7.42

1.71

<5.22

0.77

1.41

3.28

1.00

54Mn Signal:

Constant Force Springs

Sept 16, 2011

(ppb or ppm)

1.49 ppb

0.20 ppb

<0.12 ppb

<3.90 ppb

1.82 ppb

0.42 ppb

<165.04 ppb

7.45 mBq/kg

1.80 mBq/kg

CLEAN 44

Two pieces each:
10 cm long,
3.1 cm wide,
0.9cm thick

474.5 g

6.996

Oct 7, 2011

(mBq/kg)

1.99

1.32

<49.90

1.29

1.86

4.29

1.49

2.74

11.59

0.21

1.26

12.22

1.49

54Mn Signal:

Stainless Steel 316

HT-608115

Oct 14, 2011

(ppb or ppm)

0.16 ppb

0.11 ppb

<4.04 ppb

2.27 ppb

3.27 ppb

1.05 ppb

0.37 ppb

88.49 ppb

374.39 ppb

11.17 mBq/kg

1.90 mBq/kg

CLEAN 45

Master Bond Inc.

374.0 g

5.903

Mar 15, 2012

(mBq/kg)

2.31

1.24

0.00

42.51

<1.68

<0.59

<6.71

<1.37

<0.45

Cured Two-part Epoxy

Trade Name: EP29LPSP

Mar 21, 2012

(ppb or ppm)

0.19 ppb

0.10 ppb

0.00 ppb

3.44 ppb

<2.96 ppb

<0.15 ppb

<216.76 ppb

CLEAN 46

Auralex Acoustics Inc.

97.1 g

2.900

Aug 27, 2012

(mBq/kg)

26.85

9.97

<260.06

24.38

10.98

29.71

9.45

1489.19

259.53

49.43

13.39

11.87

5.69

7Be Signal:

Urethane foam

Aug 30, 2012

(ppb or ppm)

2.18 ppb

0.81 ppb

<21.07 ppb

42.90 ppb

19.32 ppb

7.31 ppb

2.33 ppb

48.10 ppm

8.38 ppm

30.90mBq/kg

50.46 mBq/kg

CLEAN 47

Winchester Precision Technologies

4526.0 g

6.597

May 28, 2012

(mBq/kg)

2.18

0.88

<65.74

1.96

1.72

5.67

1.00

<1.04

<0.51

10.15

1.50

54Mn Signal:

Stainless Steel, Yard metals, Heat# B9F8

316L Steel

Jun 4, 2012

(ppb or ppm)

0.176 ppb

0.071 ppb

<5.33 ppb

3.45 ppb

3.03 ppb

1.40 ppb

0.25 ppb

<33.61 ppb

1.66 mBq/kg

0.64 mBq/kg

CLEAN 48

Winchester Precision Technologies

4147.0 g

3.909

Aug 9, 2012

(mBq/kg)

0.17

0.92

67.64

62.09

0.68

1.83

<1.08

<2.86

<0.18

12.15

1.26

54Mn Signal:

Stainless Steel, Yard metals, Heat # B7W7

316L Steel

Aug 13, 2012

(ppb or ppm)

0.014 ppb

0.074 ppb

5.48 ppb

5.03 ppb

1.20 ppb

3.21 ppb

<0.27 ppb

<92.36 ppb

1.76 mBq/kg

0.77 mBq/kg

CLEAN 49

Winchester Precision Technologies

4961.2 g

3.725

Aug 15, 2012

(mBq/kg)

3.71

1.11

172.12

73.17

3.01

2.12

11.23

1.44

<4.82

0.10

0.73

12.16

1.23

54Mn Signal:

Stainless Steel, Yard metals, Heat # B9J6

316L Steel

Aug 20, 2012

(ppb or ppm)

0.30 ppb

0.09 ppb

13.94 ppb

5.93 ppb

5.30 ppb

3.73 ppb

2.76 ppb

0.35 ppb

<155.58 ppb

2.58 mBq/kg

0.79 mBq/kg

CLEAN 50

Winchester Precision Technologies

1092.0 g

2.848

Jul 30, 2012

(mBq/kg)

6.61

1.82

83.06

59.07

6.56

2.39

5.56

1.56

<5.24

1.28

1.37

9.46

1.55

54Mn Signal:

Stainless Steel, Yard metals, Heat # 7JD3

316L Steel

Aug 2, 2012

(ppb or ppm)

0.54 ppb

0.15 ppb

6.73 ppb

4.78 ppb

11.54 ppb

4.20 ppb

1.37 ppb

0.39 ppb

<169.27 ppb

3.85 mBq/kg

1.37 mBq/kg

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

CLEAN 51

Sensor Electronic Inc., Columbia SC 29209

8.3 g

4.227

Oct 9, 2012

(mBq/kg)

63.78

40.94

<1024.41

57.73

46.70

16.22

38.51

20662.65

2192.77

<22.24

<26.74

7Be Signal:

UV LED UVTOP

UVTOP 270 to 39BL Set 10/11

Oct 15, 2012

(ppb or ppm)

5.17 ppb

3.32 ppb

<82.98 ppb

101.60 ppb

82.20 ppb

3.99 ppb

9.47 ppb

667.40 ppm

70.83 ppm

349.40 mBq/kg

192.77 mBq/kg

CLEAN 52

1900.5 g

3.709

Mar 21, 2013

(mBq/kg)

2.66

1.15

58.87

58.46

<1.90

2.10

1.11

<3.75

<1.09

14.65

1.56

54Mn Signal:

Stainless Steel Used for Cassettes

Mar 25, 2013

(ppb or ppm)

0.22 ppb

0.09 ppb

4.36 ppb

4.74 ppb

<3.34 ppb

0.52 ppb

0.27 ppb

<121.26 ppb

6.79 mBq/kg

1.42 mBq/kg

CLEAN 53

SN: -3

619.4 g

0.200

Feb 26, 2013

(mBq/kg)

1208.55

205.60

<16904.65

<301.29

386.94

131.20

107443.82

8887.80

<136.63

295.06

118.26

Fiber Optic Taper

Feb 26, 2013

(ppb or ppm)

97.89 ppb

16.65 ppb

<1369.28 ppb

<530.27 ppb

95.19 ppb

32.27 ppb

3470.44 ppm

287.08 ppm

Additional Activities:

(mBq/kg)

138La:

98211.34

5379.26

(ppb or ppm)

116891.14 ppm

6402.39 ppm

CLEAN 54

SN: B13634-4

1785.5 g

1.009

Feb 25, 2013

(mBq/kg)

1035.81

84.62

<2341.19

<96.09

318.02

45.14

110931.45

8485.69

28.17

64.30

49.08

39.48

Fiber Optic Taper

Feb 26, 2013

(ppb or ppm)

83.90 ppb

6.85 ppb

<189.64 ppb

<169.11 ppb

78.23 ppb

11.11 ppb

3583.08 ppm

274.09 ppm

Additional Activities:

(mBq/kg)

138La:

100472.36

5405.53

(ppb or ppm)

119582.20 ppm

6433.66 ppm

CLEAN 55

VFM 718, Nickel Alloy Inconel 718

898.4 g

5.779

Feb 4, 2014

(mBq/kg)

0.94

0.68

421.19

91.27

12.84

1.50

<0.31

<3.08

<0.27

<0.36

54Mn Signal:

Bolts

27 Bolts

Feb 10, 2014

(ppb or ppm)

0.076 ppb

0.055 ppb

34.12 ppb

7.39 ppb

22.60 ppb

2.64 ppb

<0.077 ppb

<99.46 ppb

1.00 mBq/kg

0.45 mBq/kg

CLEAN 56

110 sheets

283.9 g

6.792

Jan 27, 2014

(mBq/kg)

1.28

1.89

131.03

114.48

<2.48

<1.82

1.76

20.43

0.35

1.76

<0.43

3M Film

Feb 3, 2014

(ppb or ppm)

0.10 ppb

0.15 ppb

10.61 ppb

9.27 ppb

<4.37 ppb

<0.45 ppb

56.89 ppb

659.88 ppb

In Progress and To Be Measured:

Sample Description

Manufacturer

Mass (g)

Live Time (days)

Counting Dates
(if applicable)

238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co

Comments

(mBq/kg)

(ppb or ppm)