A collimated X-ray beam of 0.3 MeV has an energy fluence of 5J/(m²s) and is shielded by 2 cm Pb.
A collimated X-ray beam of 0.3 MeV has an energy fluence of 5J/(m²s) and is shielded by 2 cm Pb.
(a) What is the incident particle flux, and the particle flux after the shield?
(b) What is the exposure before and after shield?
Homework Answers
Here we calculated flux by multiplying energy and energy fluence of unshielded instrument
Then for flux of shielded, i calculated the difference of flux unexposed and which is blocked by shielding
And for exposure we just took ratios of part exposed
In first case no shielding so 100% exposed.In second case it is shielded by 2cm pb so 2/5=.4 and .4×100=40%.
Regards
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A collimated X-ray beam of 0.3 MeV has an energy fluence of 5J/(m²s) and is shielded by 2 cm Pb.
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