[30 pts.] 3. Consider a shielding wall of a nuclear reactor. The wall receives a gamma-ray flux such that heat is generated within the wall according to the relationship q qoe-ax, where do is the heat generation at the inner face of the wall exposed to the gamma-ray flux and a is a constant. Using the given relationship for heat generation, drive an expression for the temperature distribution in the wall of thickness L, assuming that the outer surface is adiabatic while the inner surface temperature is maintained at T. (Hint: Start with the appropriate heat diffusion equation). 9 y ray flux 90 Adiabatic Ti→