Status of J-PARC accelerators

Hasegawa, Kazuo; Kinsho, Michikazu  ; Oguri, Hidetomo  ; Koseki, Tadashi

After nine-months of beam shutdown by the Great Earthquake in March 2011, the J-PARC facility resumed beam operation. In December 2011, operations were carried out at low duty for beam tuning. At the beginning of January 2012, we started beam tuning at the full repetition rate of 25 Hz at the linac and the 3 GeV Rapid Cycling Synchrotron (RCS). After the tuning, user programs of the Materials and Life Science Experiment Facility (MLF), the Neutrino facility and the Hadron facility started. We have gradually increased beam power for these facilities. We have also demonstrated new record power beyond 500 kW from the RCS. The status and progress of the J-PARC accelerators are presented.