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.