Beam Commissioning of RI Beam Factory Accelerator Complex

Abstract

RIKEN Nishina Center started commissioning of the RI Beam Factory accelerator complex in July 2006. We succeeded in extracting the first beams from the fixed-frequency Ring Cyclotron, Intermediate-stage Ring Cyclotron and Superconducting Ring Cyclotoron on September 29, November 22 and December 28, 2006, respectively. We also accelerated a uranium beam up to 345 MeV/u using all the cyclotrons newly constructed in the RIBF project in march 2007. Our progress on commissioning of RIBF accelerator complex will be outlined.