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.
CNL Measurements:



























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






















CNL P01
34.6111 g 6.909 Jul 5, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Fish
2 Pacific Salmon

Run: 230705 Jul 12, 2023 (mBq/kg) <68.32

<2868.00

<34.58

71.56 +- 37.55 286910.00 +- 14940.00 232.82 +- 45.86 <115.20







(ppm / ppb / ppt) <5.53 ppb

<232.31 ppb

<60.86 ppb

17.6 ppb +- 9.24 ppb 9267.19 ppm +- 482.56 ppm












Results:
7Be:

54Mn




228Ac:


234Cs











(mBq/kg) <358.40

<84.11




<180.70




<29.29












(ppm / ppb / ppt)








<44.45 ppb













CNL P02
27.7983 g 13.854 Jul 12, 2023 Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments
Pan-AM Processed Resin

Run: 23071204
230725		 Jul 27, 2023 (mBq/kg) 36.00 +- 16.16 991.7 +- 659.10 38.73 +- 8.09 <30.27

18738.00 +- 1110.00 3301.00 +- 177.60 <9.94







(ppm / ppb / ppt) 2.92 ppb +- 1.31 ppb 80.33 ppb +- 53.39 ppb 68.16 ppb +- 14.24 ppb <7.45 ppb

605.24 ppm +- 35.85 ppm












Results:
7Be:

54Mn




228Ac:


134Cs:











(mBq/kg) <148.20

<5.57




137.60 +- 33.86


33.06 +- 9.03










(ppm / ppb / ppt)








33.85 ppb +- 8.33 ppb











In Progress and To Be Measured:



























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






















Next Sample

Queue: Empty
Results:
238U from 226Ra

238U from 234Th

235U

232Th

40K

137Cs

60Co
Comments




(mBq/kg)


























(ppm / ppb / ppt)



























Results:
7Be:

54Mn




228Ac:















(mBq/kg)




























(ppm / ppb / ppt)