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(a) Calculate the mass attenuation coefficient of silica glass (SiO2, = 2.21 g/cm3) for 5-MeV -rays. (b) What thickness of silica glass is required

(a) Calculate the mass attenuation coefficient of silica glass (SiO2, ρ = 2.21 g/cm3) for 5-MeV γ-rays.

(b) What thickness of silica glass is required to reduce the intensity of a 5-MeV γ-ray beam by a factor of 100?

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