Radioactivity is the process by which an unstable atomic nucleus loses energy by radiation. It is measured in becquerels (Bq).
1 Bq = 1 Gy 
1 Gy = 1 Bq 
उदाहरण: 
कन्वर्ट 15 Becquerel से Gray:
15 Bq = 15 Gy 
| Becquerel | Gray | 
|---|---|
| 0.01 Bq | 0.01 Gy | 
| 0.1 Bq | 0.1 Gy | 
| 1 Bq | 1 Gy | 
| 2 Bq | 2 Gy | 
| 3 Bq | 3 Gy | 
| 5 Bq | 5 Gy | 
| 10 Bq | 10 Gy | 
| 20 Bq | 20 Gy | 
| 30 Bq | 30 Gy | 
| 40 Bq | 40 Gy | 
| 50 Bq | 50 Gy | 
| 60 Bq | 60 Gy | 
| 70 Bq | 70 Gy | 
| 80 Bq | 80 Gy | 
| 90 Bq | 90 Gy | 
| 100 Bq | 100 Gy | 
| 250 Bq | 250 Gy | 
| 500 Bq | 500 Gy | 
| 750 Bq | 750 Gy | 
| 1000 Bq | 1,000 Gy | 
| 10000 Bq | 10,000 Gy | 
| 100000 Bq | 100,000 Gy |