Q6. When a slab of material is inserted between a collimated 60ºCo source and a detector, it is found that the fluxes of 1.17 and 1.33 MeV gamma-rays are reduced, respectively, to 62 and 65% of their values with no absorbers. Calculate the ratio of the attenuation coefficient of the material for the two energies. What would be the reduction in the fluxes if two slabs were used?
Q6. When a slab of material is inserted between a collimated 60ºCo source and a detector, it is found that the fluxes of 1.17 and 1.33 MeV gamma-rays are reduced, respectively, to 62 and 65% of their values with no absorbers. Calculate the ratio of the attenuation coefficient of the material for the two energies. What would be the reduction in the fluxes if two slabs were used?
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Transcribed Image Text:Q6. When a slab of material is inserted between a collimated 60Co source and a detector, it is
found that the fluxes of 1.17 and 1.33 MeV gamma-rays are reduced, respectively, to 62 and
65% of their values with no absorbers. Calculate the ratio of the attenuation coefficient of the
material for the two energies. What would be the reduction in the fluxes if two slabs were used?
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