Table 3.
Achieved detection limits and detectable effective doses for a separate evaluation and different combined evaluations of 225Ac in 12 whole-body measurements over the course of a year
Detection limit (Bq) | Detectable effective dose per measurement (mSv) | Detectable effective dose per year (mSv) | ||
---|---|---|---|---|
M1, …, M7 | at 218 keV | 270 | 73 | - |
at 440 keV | 83 | 23 | 2801 | |
M8, …, M12 | at 218 keV | 320 | 88 | - |
at 440 keV | 96 | 27 | 3201 | |
M1, …, M12 | at 440 keV | - | - | 300 |
Combination of emissions (method a): | ||||
M1, …, M7 | 94 | 26 | ||
M8, …, M12 | 97 | 26 | ||
M1, …, M12 | - | - | 310 | |
Combination of spectra (method b only): | ||||
M1+…+M7 | at 440 keV | 30 | 8.2 | 98 |
M8+…+M12 | at 440 keV | 36 | 9.8 | 120 |
M1+…+M12 | at 440 keV | 25 | 6.8 | 81 |
1 Under the hypothetical assumption that 12 measurements were conducted under these conditions