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 rem = 0.01 Sv
1 Sv = 100 rem
例子:
将15 REM转换为sievert:
15 rem = 0.15 Sv
| REM | sievert |
|---|---|
| 0.01 rem | 0 Sv |
| 0.1 rem | 0.001 Sv |
| 1 rem | 0.01 Sv |
| 2 rem | 0.02 Sv |
| 3 rem | 0.03 Sv |
| 5 rem | 0.05 Sv |
| 10 rem | 0.1 Sv |
| 20 rem | 0.2 Sv |
| 30 rem | 0.3 Sv |
| 40 rem | 0.4 Sv |
| 50 rem | 0.5 Sv |
| 60 rem | 0.6 Sv |
| 70 rem | 0.7 Sv |
| 80 rem | 0.8 Sv |
| 90 rem | 0.9 Sv |
| 100 rem | 1 Sv |
| 250 rem | 2.5 Sv |
| 500 rem | 5 Sv |
| 750 rem | 7.5 Sv |
| 1000 rem | 10 Sv |
| 10000 rem | 100 Sv |
| 100000 rem | 1,000 Sv |