Current status of 1Â MW pulse spallation neutron source (JSNS) of J-PARC

Construction of a 1 MW pulse spallation neutron source (JSNS) is in progress under the J-PARC project to provide a vital experimental environment for breakthroughs in neutrons researches with emphasis in materials and life sciences. An overview of the JSNS is given in terms of 1 MW power regime, the mercury spallation target, cryogenic H2 moderators, and the central station with 23 independent neutron beam shutters. Conventional facility construction and neutron instrumentation scheme are briefly shown along with the technical research and development with emphasis on material issues.