Mass-attenuation coefficient of Al and Pb in 300keV is 1.042E-01 and 4.031E-01, respectively. The material density...

Mass-attenuation coefficient of Al and Pb in 300keV is 1.042E-01 and 4.031E-01, respectively. The material density of Al and Pb is 2.7 and 11.35g/cm3, respectively.

1) What thickness of Al and Pb are needed to reduce the number of 300keV photons in a narrow beam to one-fourth the incident number?

2) Compare the thickness in cm and g/cm2.

Expert Solution

genius_generous answered 2 years ago

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