Abstract
Giving an overview of the high intensity proton accelerator facility, J-PARC, which has started its user program since December 2008, the neutron source as the major user facility is described. Stressing an advancement of J-PARC pulse neutron source, in particular, important characteristic neutron performance and present situation in implementation of neutron instruments, which maximizes the neutron source performance, are addressed along with recent prominent scientific output. User operation condition in terms of proton beam power just before the devastating earthquake events on March 11, 2011, is touched upon briefly as an record. Showing damage to J-PARC facility from the earthquake, current recovering work as well as the operation schedule is described. In addition to last two years’ experience in user program, a plan to reach the 1MW power of the primary goal of J-PARC is shown.
