Homework #3 Assignment Problem 4: (20 points) An infinite planar source emitting
Sneutrons
/cm^(2)-secis placed between infinite slabs of beryllium and graphite of thickness
aand
b, respectively, as shown in the figure below. Derive an expression for the neutron flux in the system. Hint: Since the media are different on opposite sides of the source, the problem is not symmetric, and the source condition
\lim_(x->0)J(x)=(S)/(2)is not valid. The appropriate boundary conditions for this problem are: