# 1. Albedo, or the reflection coefficient (a), is defined as the ratio of the reflected to the…

1. Albedo, or the reflection coefficient (_), is

defined as the ratio of the reflected to the incident current, _ = Jout/Jin.

Derive the albedo expression for a slab of thickness a.

2. Consider an infinite medium through which monoenergetic

sources of neutron emitting So neutrons/s cm2 are

uniformly distributed. Find neutron flux in this medium.