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Nuclear Reactions

Problem 6.281

A narrow beam of thermal neutrons is attenuated η=\eta= =360=360 times after passing through a cadmium plate of thickness d=0.50 mm.d=0.50 \mathrm{~mm} . Determine the effective cross-section of interaction of these neutrons with cadmium nuclei.

Reveal Answer
6.281. σ=(M/Nρd)ln⁡η=2.5 kb,\sigma=(M / N \rho d) \ln \eta=2.5 \mathrm{~kb}, where MM is the molar mass of cadmium, NN is the Avogadro number, ρ\rho is the density of cadmium.
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