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 Bq = 100 rad
1 rad = 0.01 Bq
例子:
将15 贝克雷尔转换为rad：
15 Bq = 1,500 rad
| 贝克雷尔 | rad |
|---|---|
| 0.01 Bq | 1 rad |
| 0.1 Bq | 10 rad |
| 1 Bq | 100 rad |
| 2 Bq | 200 rad |
| 3 Bq | 300 rad |
| 5 Bq | 500 rad |
| 10 Bq | 1,000 rad |
| 20 Bq | 2,000 rad |
| 30 Bq | 3,000 rad |
| 40 Bq | 4,000 rad |
| 50 Bq | 5,000 rad |
| 60 Bq | 6,000 rad |
| 70 Bq | 7,000 rad |
| 80 Bq | 8,000 rad |
| 90 Bq | 9,000 rad |
| 100 Bq | 10,000 rad |
| 250 Bq | 25,000 rad |
| 500 Bq | 50,000 rad |
| 750 Bq | 75,000 rad |
| 1000 Bq | 100,000 rad |
| 10000 Bq | 1,000,000 rad |
| 100000 Bq | 10,000,000 rad |
规则