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 cpm = 4.5045e-13 Ci
1 Ci = 2,220,000,000,000 cpm
例子:
将15 每分钟计数转换为居里:
15 cpm = 6.7568e-12 Ci
| 每分钟计数 | 居里 |
|---|---|
| 0.01 cpm | 4.5045e-15 Ci |
| 0.1 cpm | 4.5045e-14 Ci |
| 1 cpm | 4.5045e-13 Ci |
| 2 cpm | 9.0090e-13 Ci |
| 3 cpm | 1.3514e-12 Ci |
| 5 cpm | 2.2523e-12 Ci |
| 10 cpm | 4.5045e-12 Ci |
| 20 cpm | 9.0090e-12 Ci |
| 30 cpm | 1.3514e-11 Ci |
| 40 cpm | 1.8018e-11 Ci |
| 50 cpm | 2.2523e-11 Ci |
| 60 cpm | 2.7027e-11 Ci |
| 70 cpm | 3.1532e-11 Ci |
| 80 cpm | 3.6036e-11 Ci |
| 90 cpm | 4.0541e-11 Ci |
| 100 cpm | 4.5045e-11 Ci |
| 250 cpm | 1.1261e-10 Ci |
| 500 cpm | 2.2523e-10 Ci |
| 750 cpm | 3.3784e-10 Ci |
| 1000 cpm | 4.5045e-10 Ci |
| 10000 cpm | 4.5045e-9 Ci |
| 100000 cpm | 4.5045e-8 Ci |