Overview of tritium safety studies in Japan

摘要: Abstract Tritium safety is one of the most important R&D subjects for developing International Thermonuclear Experimental Reactor (ITER) and fusion reactor. In Japan, tritium studies are being conducted in JAERI (Japan Atomic Energy Research Institute), NIRS (National Institute Radiological Sciences), universities. JAERI, experiments experiences Process Laboratory (TPL) important. Here, a few kilograms have been safely used from its start operation 1988. Recent research subject elucidation behavior confinement system using caisson (12 m 5 ) combined with removal system. JAREI also conducting related such as, confinement, decontamination, permeation, off-normal events, accountancy. universities, various fundamental researches conducted, including simulation reactor system, contamination measurement, interaction materials, trapping on surface components. environmental biological effect to evaluate consequences released provide an appropriate information receive good public acceptance Fundamental code development them NIRS. Licensing preparation ITER at Government collaboration JAERI. This includes features, approach design, assessment design evaluation events.