  A Monte-Carlo study of several Mu2e Production Solenoid (PS) absorber (heat
shield) versions using the MARS15 code has been performed. Optimizations for
material as well as cost (amount of tungsten) have been carried out. Studied
are such quantities as the number of displacements per atom (DPA) in the
helium-cooled solenoid superconducting coils, power density and dynamic heat
load in various parts of the PS and its surrounding structures. Prompt dose,
residual dose, secondary particle flux are also simulated in the PS structures
and the experimental hall. A preliminary choice of the PS absorber design is
made on the ground of these studies.
