STATUS OF J-PARC ACCELERATORS

The Japan Proton Accelerator Research Complex (JPARC) resumed beam operation in December 2011, after nine-months of beam shutdown by the Great Earthquake in March 2011. The operations were started at low duty for beam tuning, and in the beginning of January 2012, at the full repetition rate of 25 Hz at the linac and the 3 GeV Rapid Cycling Synchrotron (RCS). After the tuning, the beams were provided for the user programs at the Materials and Life Science Experiment Facility (MLF), the Neutrino Experimental Facility (NU) and the Hadron Experimental Facility (HD). Since then we have gradually increased beam power for these facilities, and also demonstrated new record power beyond 500kW from the RCS in 2012. Here, the updated status of the J-PARC accelerators is presented.