放射能は、不安定な原子核が放射によってエネルギーを失うプロセスです。Beckerels（BQ）で測定されます。
1 cps = 1,000,000,000 nGy
1 nGy = 1.0000e-9 cps
例:
15 毎秒カウントをナノグレイに変換します。
15 cps = 15,000,000,000 nGy
| 毎秒カウント | ナノグレイ |
|---|---|
| 0.01 cps | 10,000,000 nGy |
| 0.1 cps | 100,000,000 nGy |
| 1 cps | 1,000,000,000 nGy |
| 2 cps | 2,000,000,000 nGy |
| 3 cps | 3,000,000,000 nGy |
| 5 cps | 5,000,000,000 nGy |
| 10 cps | 10,000,000,000 nGy |
| 20 cps | 20,000,000,000 nGy |
| 30 cps | 30,000,000,000 nGy |
| 40 cps | 40,000,000,000 nGy |
| 50 cps | 50,000,000,000 nGy |
| 60 cps | 60,000,000,000 nGy |
| 70 cps | 70,000,000,000 nGy |
| 80 cps | 80,000,000,000 nGy |
| 90 cps | 90,000,000,000 nGy |
| 100 cps | 100,000,000,000 nGy |
| 250 cps | 250,000,000,000 nGy |
| 500 cps | 500,000,000,000 nGy |
| 750 cps | 750,000,000,000 nGy |
| 1000 cps | 1,000,000,000,000 nGy |
| 10000 cps | 9,999,999,999,999.998 nGy |
| 100000 cps | 99,999,999,999,999.98 nGy |
Inayam