Nuclear

QuantityOld UnitSI Unit
ActivityCurie (Ci)bequerel (Bq)
3.7 x 10¹⁰ disintegrations/s1 disintegration/s
Exposureroentgen (R) No special unit
2.6 x 10⁻⁴ coulomb (c)/kg in air
Absorbed doserad (rad)gray (Gy)
0.01 J/kg1 J/kg
Dose equivalentremSievert (Sv)