Radiation Conversions & Prefixes

Common Conversions and Prefixes

1 µCi = 37 kBq
1 mCi = 37 MBq
1 Bq = 27 pCi
370 MBq = 10 mCi
1 µSv = 0.1 mrem

Roentgen
represented by "R", is the unit of measurement that indicates the charge produced in air by x or gamma rays, whereas SI Units are n terms of coulombs per kilogram of air (C kg-1).

1R = 2.58 X 10-4 C kg-1

Radiation Absorbed Dose and KERMA (Kinetic Energy Released in Material)
100 rad = 1 gray (Gy) 0.01 Gy = 1 rad

Radiation Dose Equivalent
100 rem = 1 sievert (Sv) 0.01 Sv = 1 rem

Activity
1 disintigration per second = 1 becquerel (Bq)
2.7 X 10-11 curie (Ci) = 1 Bq

SI Unit Prefixes
10-3 milli m          103 kilo k
10-6 micro µ        106 mega M
10-9 nano n          109 giga G
10-12 pico p         1012 tera T