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UK DM project: radioactivity test results
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UK DM project: radioactivity test results |
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| sample (source) | analysis | U conc. (ppb) |
Th conc. (ppb) |
K conc. (ppm) |
comments | |
| by | method | |||||
| Cu | ? | ? | < 0.006 | < 0.025 | < 0.065 | |
| Fe cathode | ? | ? | < 0.002 | < 0.007 | ~ 0.002 | |
| Quartz | ? | ? | < 0.0067 | < 2.5 10-4 | < 0.0013 | |
Notes:
Converted from reported values in mBq kg-1.
Hand-written on the transparency appears to be a U concentration in quartz one-tenth of
what I obtain; I have no way of telling which value is correct - the printed 1.2 mBq kg-1 or the written .66 ppt.
Other remarks:
