Reprogrammable logic devices have already demonstrated themselves to be most useful on several of PHENIX subsystems outside the actual IR, most notably on the Level-1 Trigger. The primary purpose of this study is to characterize the nature of the radiation environment within PHENIX. This model can ultimately be used to create a better understanding of single event upsets induced in a hypothetical FPGA in the IR; an issue of particularly importance in considerations for future experiments and detector upgrades. The model can also provide a means of evaluating the feasibility of using field programmable gate arrays (FPGAs) to replace the traditional ASIC components in on-detector electronics.