PRELIMINARY SHIELDING ANALYSIS AND DESIGN OF THE REMOTE MAINTENANCE CELLS FOR THE PROPOSED NATIONAL SPALLATION NEUTRON SOURCE (NSNS)

Radiation shielding analysis and design calculations were performed for remote maintenance cells of the proposed National Spallation Neutron Source (NSNS) facility. In the analysis, a calculational strategy utilizing coupled high energy Monte Carlo calculations and multi- dimensional discrete ordinates calculations was implemented to perform an activation analysis and shielding assessment of the NSNS remote handling cells. A general description of the remote maintenance cells, the methodology employed, and preliminary results of the shielding analysis and recommendations are presented.