Overview of J-PARC

J - Parc

An outline is explained for hadron-physics projects at J-PARC, which is considered to be one of the flagship facilities in hadron physics from 2008. The facility provides an intensity frontier with 50 GeV proton beam for nuclear and particle physics. It could cover a wide range of hadron physics from strongly interacting many-body systems with an extended hadronic degree of freedom, strangeness...

Present Status of the J-parc Accelerator

Construction of the Japan Proton Accelerator Research Complex (J-PARC), which consists of a 400 MeV Linac, a 3 GeV Rapid Cycling Synchrotron (RCS), and a 50 GeV Main Ring (MR), commenced in 2001. J-PARC is a multipurpose accelerator complex. The RCS uses 1 MW proton beams to generate pulse neutrons that will be used for various research projects ranging from basic science to applied science at ...

Power Upgrade of J-parc Linac

The linac power upgrade program is now in progress, after a successful recovery from the earthquake disaster. The power upgrade includes an ion source, a RFQ, and a 400 MeV annular-ring coupled structure (ACS) linac. We started a full-scale development of a cesium-seeded RFdriven negative hydrogen ion source. The ion source extracted a beam current of more than 60 mA with a duty factor of 2.5 %...

Operating Experience of the J-PARC Linac

The beam commissioning of the J-PARC linac started in November 2006 and 181 MeV acceleration was successfully achieved in January 2007. The linac has delivered beams to the 3 GeV Rapid Cycling Synchrotron for its commissioning, and then, the subsequent Main Ring Synchrotron and the neutron target commissioning. The linac uses a Cs-free LaB6-driven ion source and 20 units of 324 MHz klystrons. A...

Summary of the J-parc Ucn Taskforce