Exercise 3: Determine the thickness of lead that is required to reduce the flux density of a 150 keV gamma ray to 5% of its incident value. The half value layer for 150 keV gamma rays in lead is 0.068 cm.
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Determine the thickness of lead that is required to reduce the flux density of a
150 ??? gamma ray to 5% of its incident value. The half value layer for 150 ??? gamma rays in
lead is 0.068 ?m.
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