For 140 keV gamma rays, the mass attenuation coefficients for hydrogen and oxygen are 0.26 and 0.14 cm^2/g, respectively. What is the mean free path in water at this energy?

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For 140 keV gamma rays, the mass attenuation coefficients for hydrogen and
oxygen are 0.26 and 0.14 cm^2/g, respectively. What is the mean free path in
water at this energy?
Transcribed Image Text:For 140 keV gamma rays, the mass attenuation coefficients for hydrogen and oxygen are 0.26 and 0.14 cm^2/g, respectively. What is the mean free path in water at this energy?
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