Question

a. Write the definitions of the microscopic and macroscopic cross sections

b. What is the inverse of the macroscopic cross-section signify in terms of interaction probability?

c. If the macroscopic neutron scattering cross-section is 0.1
cm^{-1} , how far will a neutron travel on average before a
collision will take place?

d. For a thermal LWR, how would the size of the reactor vary with the scattering mean free path?

Answer #1

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