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 n/cm²/s = 1 Sv
1 Sv = 1 n/cm²/s
例子:
将15 中子通量转换为sievert：
15 n/cm²/s = 15 Sv
| 中子通量 | sievert |
|---|---|
| 0.01 n/cm²/s | 0.01 Sv |
| 0.1 n/cm²/s | 0.1 Sv |
| 1 n/cm²/s | 1 Sv |
| 2 n/cm²/s | 2 Sv |
| 3 n/cm²/s | 3 Sv |
| 5 n/cm²/s | 5 Sv |
| 10 n/cm²/s | 10 Sv |
| 20 n/cm²/s | 20 Sv |
| 30 n/cm²/s | 30 Sv |
| 40 n/cm²/s | 40 Sv |
| 50 n/cm²/s | 50 Sv |
| 60 n/cm²/s | 60 Sv |
| 70 n/cm²/s | 70 Sv |
| 80 n/cm²/s | 80 Sv |
| 90 n/cm²/s | 90 Sv |
| 100 n/cm²/s | 100 Sv |
| 250 n/cm²/s | 250 Sv |
| 500 n/cm²/s | 500 Sv |
| 750 n/cm²/s | 750 Sv |
| 1000 n/cm²/s | 1,000 Sv |
| 10000 n/cm²/s | 10,000 Sv |
| 100000 n/cm²/s | 100,000 Sv |
规则