361 / 1840
Now, Specification of Sources in terms of Energy
Deposition, per unit of time at a given distance:
The “Strength” of a Source
•
exposure rate: R. h
-1
@ 1cm
•
in Air Kerma Rate:
µ
Gy . h
-1
@ 1 m
For linear sources this can be expressed in
•
exposure rate per unit of length, or
•
Air Kerma Rate units per unit of length