STATUS AND CHALLENGES OF THE CHINA SPALLATION NEUTRON SOURCE

The accelerator complex of China Spallation Neutron Source (CSNS) mainly consists of an H- linac of 80 MeV and a rapid-cycling synchrotron of 1.6 GeV. It operates at 25 Hz repetition rate with an initial proton beam power of 100 kW and is upgradeable to 500kW. The project will start construction in September 2011 with a construction period of 6.5 years. The CSNS accelerator is the first large-scale, high-power accelerator project to be constructed in China and thus we are facing a lot of challenges. This paper presents the current status of CSNS project and summarizes the key technology development for the feasibility demonstration of the related technologies during the past several years.