Table 2 The minimum detectable activity radionuclides of interest.
From: Evaluation of radiological hazards associated with some Egyptian marble and granite rocks
Decay series | 238U Series | 232Th Series | 40K | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Radioactive isotope | 234Th | 226Ra | 214Bi | 214Pb | 228Ra (228Ac) | 234mPa | 212Pb | 212Bi | 208Tl | 40K | |
Energy (keV) | 92 | 186 | 609 | 351 | 911 | 968 | 1001 | 238 | 727 | 583 | 1460 |
Minimum detectable activity (Bqkg− 1) | 0.27 | 9.51 | 1.45 | 3.38 | 5.1 | 8.75 | 1.87 | 2.19 | 1.45 | 0.92 | 3.571 |
