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A 100 keV x-ray beam is incident on a block of lead. Calculate the fraction transmitted...

A 100 keV x-ray beam is incident on a block of lead. Calculate the fraction transmitted through layers of material 1mm, 0.5 cm, and 5 cm thick.
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Answer #1

When X-ray passes through matter it is attenuated. The intensity relation is given by the equation where mu is the attenuation coefficient

x is the distance, here x= 1mm, 0.5cm, 5cm

for Lead, the attenuation coefficient for 100 keV is 62 cm-1

so for x = 1mm, I_out = 0.202 keV

x= 0.5cm, I_out = 3.44*10-12 (almost blocked)

x= 5cm, I_out = 2.33*10-133 (almost fully blocked)

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