CPB Ljubljana 2018 course book

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The “Strength” of a Source

Apparent Activity A

:

S

app

K

usually in MBq

For example for HDR 192 Ir sources: 10Ci = 370 GBq  ≈ 41 kU

41000 µGy.m².h -1 41000 cGy.cm².h -1

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