Fast Flux Test Facility Instrumentation Requirements

The Fast Flux Test Facility (FFTF) is the major irradiation test facility planned for the Liquid Metal Fast Breeder Reactor (LMFBR) Program. This paper discusses the facility instrumentation requirements, placing particular emphasis on out-of-core instrumentation. In-core instrumentation requirements are described in more general terms due to their greater dependence on reactor concept decisions. Out-of-reactor instrumentation requirements included in these discussions are: sodium and inert gas purity, sodium heat transport system measurements, fuel handling and examination, radiation monitoring, containment actuation and process control problem areas. Considerations leading to provisions for a multiple digital computer-based data handling and display system are described.