Question

2. A beam of 100 keV neutrons is sent through a tank of water (H20, p = 1 g/cm3). The neutron scattering cross-sections of hydrogen and oxygen are os(H, 100 keV) = 12.5 b, os(0, 100 keV) = 3.6 b. (a) What are the macroscopic scattering cross-sections for this beam of neutrons from the hydrogen and oxygen? (b) The neutron beam has an initial intensity of 105 neutrons/second, after passing through 2.5 cm of water, what is the beam intensity that was not scattered?

Answer 1

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