Question
In: Physics
What thickness of lead is required to attenuate a broad beam of 500 keV photons to...
What thickness of lead is required to attenuate a broad beam of 500
keV photons to one half of the original number (with better than 5%
precision) ? Hint: use buildup factors for this poor geometry.
Solutions
Expert Solution
Say that original number of photons be N_0
We require number of particles as=
We also know that
where x is thickness of lead required , mu is attenuation coefficient
Put
For lead the attenuation coefficient is given by:
WIth 500 keV beam 
for lead
genius_generous answered 2 years agoRelated Solutions
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