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KALMATRON KF-aßy MATERIAL RADIOACTIVE RESISTANCE KF-aby, CONCRETE, LEAD COMPARISON Units of Radioactivity Measurement Dose
of Ionizing Radiation or Exposure Dose Activity
of a radionuclide exposure of radiation curie Ci, roentgen R 1MeV
= 1.602 x 10-13J 1J
= (m2Kg/s2) = 107ergs = 0.2388
calorie = 624x107MeV 1J
= 1:1.602 x 10-13MeV = 6.24 x 1010MeV = 624 x
107MeV Absorbed
Dose:
Absorbed dose is becquerel (Bq), gray (Gy), sievert (Sv);
couloumb (C),
and rem-roentgen equivalent men and rd or rad radiation absorbed
dose. R
= 2.58 x 10-4C Kg-1 = 88eregs/g = 0.88rad =
8.8mGy R
= 10-2J Kg-1 Ci
= 3.7 x 1010Bq
(1gr of radium 226) 1Bg
= 1s-1 1Gy
= 1J Kg-1
= 100rad 1rad
= 100erg/g = 10-2Gy 1rem
= 10-2Sv 1Sv
= Q x 1Gy = Q x J Kg-1 = Q x 624 x 107MeV/Kg
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