Page 73 - Radiation Safety

EXERCISE 3

The dose rate from an unshielded radiation source is

-1
1600 µSv.hr and the HVL of lead is 3 cm. What is the

dose rate if 12 cm of lead is used as shielding?

A 50 µSv.hr -1

I = I .e (-0.693x/HVL)
B 100 µSv.hr -1 x o

C 200 µSv.hr -1 n
I / I = 2

D 400 µSv.hr -1 o n

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