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 = 1,000,000,000 nSv
1 nSv = 1.0000e-9 Bq
例子:
将15 贝克雷尔转换为nanosevert：
15 Bq = 15,000,000,000 nSv
| 贝克雷尔 | nanosevert |
|---|---|
| 0.01 Bq | 10,000,000 nSv |
| 0.1 Bq | 100,000,000 nSv |
| 1 Bq | 1,000,000,000 nSv |
| 2 Bq | 2,000,000,000 nSv |
| 3 Bq | 3,000,000,000 nSv |
| 5 Bq | 5,000,000,000 nSv |
| 10 Bq | 10,000,000,000 nSv |
| 20 Bq | 20,000,000,000 nSv |
| 30 Bq | 30,000,000,000 nSv |
| 40 Bq | 40,000,000,000 nSv |
| 50 Bq | 50,000,000,000 nSv |
| 60 Bq | 60,000,000,000 nSv |
| 70 Bq | 70,000,000,000 nSv |
| 80 Bq | 80,000,000,000 nSv |
| 90 Bq | 90,000,000,000 nSv |
| 100 Bq | 100,000,000,000 nSv |
| 250 Bq | 250,000,000,000 nSv |
| 500 Bq | 500,000,000,000 nSv |
| 750 Bq | 750,000,000,000 nSv |
| 1000 Bq | 1,000,000,000,000 nSv |
| 10000 Bq | 9,999,999,999,999.998 nSv |
| 100000 Bq | 99,999,999,999,999.98 nSv |
规则