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: | ||||||||||||||||||||||||||
(mBq) | 101.72 | +- | 20.73 | <0.98 | <0.12 | 1.03 | +- | 0.37 | ||||||||||||||||||||||
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 | ||||||||||||||||||||||
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. | ||||||||||||||||||||||||||||||
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 | ||||||||||||||||||||||||
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) |
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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) |