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 μSv = 1.0000e-4 R
1 R = 10,000 μSv
例子:
将15 Microsievert转换为罗恩根：
15 μSv = 0.001 R
| Microsievert | 罗恩根 |
|---|---|
| 0.01 μSv | 1.0000e-6 R |
| 0.1 μSv | 1.0000e-5 R |
| 1 μSv | 1.0000e-4 R |
| 2 μSv | 0 R |
| 3 μSv | 0 R |
| 5 μSv | 0.001 R |
| 10 μSv | 0.001 R |
| 20 μSv | 0.002 R |
| 30 μSv | 0.003 R |
| 40 μSv | 0.004 R |
| 50 μSv | 0.005 R |
| 60 μSv | 0.006 R |
| 70 μSv | 0.007 R |
| 80 μSv | 0.008 R |
| 90 μSv | 0.009 R |
| 100 μSv | 0.01 R |
| 250 μSv | 0.025 R |
| 500 μSv | 0.05 R |
| 750 μSv | 0.075 R |
| 1000 μSv | 0.1 R |
| 10000 μSv | 1 R |
| 100000 μSv | 10 R |
规则