Page 71 - Radiation Safety
P. 71
EXERCISE 2
What is the dose rate from a gamma source at 8 m, if
-1
a reading at 2 m is 2 mSv.hr ?
A 125 µSv.hr -1 I /I = (d / d ) 2
2
1 2
1
B 250 µSv.hr -1
2
C 400 µSv.hr -1 I (d ) = I (d ) 2
2
2
1
1
D 1200 µSv.hr -1
45
