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 dps = 100 R
1 R = 0.01 dps
例子:
将15 每秒分解转换为罗恩根：
15 dps = 1,500 R
| 每秒分解 | 罗恩根 |
|---|---|
| 0.01 dps | 1 R |
| 0.1 dps | 10 R |
| 1 dps | 100 R |
| 2 dps | 200 R |
| 3 dps | 300 R |
| 5 dps | 500 R |
| 10 dps | 1,000 R |
| 20 dps | 2,000 R |
| 30 dps | 3,000 R |
| 40 dps | 4,000 R |
| 50 dps | 5,000 R |
| 60 dps | 6,000 R |
| 70 dps | 7,000 R |
| 80 dps | 8,000 R |
| 90 dps | 9,000 R |
| 100 dps | 10,000 R |
| 250 dps | 25,000 R |
| 500 dps | 50,000 R |
| 750 dps | 75,000 R |
| 1000 dps | 100,000 R |
| 10000 dps | 1,000,000 R |
| 100000 dps | 10,000,000 R |
规则