I. A beam of 2200 m/s neutrons has an intensity of
100,000 neutrons/cm2s. a) What would the beam intensity be after
passing through a 2.5 mm thick sheet of boral? Boral is a shield
material having a density of 2.56 g/cm3 and its composition is 50%
aluminum, 40% boron, and 10% carbon (by weight). b) What would be
the beam intensity after passing through a 2.5 mm sheet of pure
aluminum? The density of Aluminum is 2.70 g/cm3.
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