放射性是不稳定原子核因辐射失去能量的过程。它以Becquerels(BQ)进行测量。
1 mrem = 0.06 cpm
1 cpm = 16.667 mrem
例子:
将15 搅拌转换为每分钟计数:
15 mrem = 0.9 cpm
| 搅拌 | 每分钟计数 |
|---|---|
| 0.01 mrem | 0.001 cpm |
| 0.1 mrem | 0.006 cpm |
| 1 mrem | 0.06 cpm |
| 2 mrem | 0.12 cpm |
| 3 mrem | 0.18 cpm |
| 5 mrem | 0.3 cpm |
| 10 mrem | 0.6 cpm |
| 20 mrem | 1.2 cpm |
| 30 mrem | 1.8 cpm |
| 40 mrem | 2.4 cpm |
| 50 mrem | 3 cpm |
| 60 mrem | 3.6 cpm |
| 70 mrem | 4.2 cpm |
| 80 mrem | 4.8 cpm |
| 90 mrem | 5.4 cpm |
| 100 mrem | 6 cpm |
| 250 mrem | 15 cpm |
| 500 mrem | 30 cpm |
| 750 mrem | 45 cpm |
| 1000 mrem | 60 cpm |
| 10000 mrem | 600 cpm |
| 100000 mrem | 6,000 cpm |