| A | B |
|---|
| becquerel | activity of a radioactive source - nucleus decays/s |
| curie | disintegrations/s in 1 g radium |
| gray | radiation absorption - 1 J of energy to 1 kg living tissue |
| rad | radiation absorbed dose |
| roentgen | measure of the ionizing effect of radiation on air |
| sievart | measure of health effect on living tissue |
| fission | the process of splitting a large nucleus |
| fusion | the process of combining light nuclei |
