Development of personal safety and interlock system for the Proton Accelerator Research Center of PEFP

The Proton Engineering Frontier Project (PEFP) planned to construct a high power 100 MeV proton linear accelerator and to supply 20 MeV or 100 MeV proton beams to users who want to utilize a proton beam for their Research and Development. When using high power 100 MeV Proton linear accelerator, a high radiation field is formed in the surrounding area. So the substances are radiation-activated. For this reason, Personnel Safety and Interlock System (PSIS) in Proton Accelerator Research Center (PARC) of PEFP, which is now under construction, was designed to protect people from radiation hazards by controlling access to restricted areas and interrupting accelerator operation in case of an accident. (author)