Rapid cycling synchrotron of J-PARC

Suzuki, Hiromitsu

Proceedings of 3rd Asian Particle Accelerator Conference (APAC 2004), p.499 - 501, 2004/00

JAERI and KEK are constrting J-PARC. The accelerator complex consists of a 400 MeV linac, a 3 GeV rapid cycling synchrotron ring (RCS) and a 50 GeV synchrotron ring (MR). The RCS ring accelerates a 400 MeV proton beam from the linac up to 3 GeV and supplies the beam to the MR and a MLF (material and life science facility). The MLF has a neutron production target in order to produce a high intensity neutron beam. For this purpose, the RCS aims to generate a high power proton beam of 1 MW. The construction of the RCS started in 2002. All the components were ordered in the fiscal year of 2002 and 2003. The budged is started in the fiscal year of 2002 and finished in that of 2006. The building will be accomplished in April 2005, and many components of RCS will be installed and tested from May 2005 to April 2007. The beam commissioning of RCS will be started in May 2007. This paper presents the design and status of RCS.