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TY - CONF AU - Shi, J. AU - Chai, W.P. AU - Xia, J.W. AU - Yang, J.C. ED - Zhao, Hongwei ED - He, Yuan ED - Li, Lu ED - Schaa, Volker RW TI - Beam Commissioning in the First Chinese Demo Cancer Therapy Synchrotron J2 - Proc. of HIAT2018, Lanzhou, China, 22-26 October 2018 CY - Lanzhou, China T2 - International Conference on Heavy Ion Accelerator Technology T3 - 14 LA - english AB - Heavy Ion Medical Machine in Wuwei (HIMM-ww) is the first Chinese heavy ion accelerator facility de-veloped for cancer therapy. After commissioning, the particle number after acceleration reached 1.5·10⁹ ppp (particles per pulse), while injection exceeded 3·10⁹ ppp. The slow extraction efficiency reached nearly 90% for all energies from 120 to 400 MeV/u. The spill duty factor exceeded 90% at a sample rate of 10 kHz. This paper reports the results of the synchrotron commis-sioning. PB - JACoW Publishing CP - Geneva, Switzerland SP - 161 EP - 163 KW - extraction KW - synchrotron KW - feedback KW - injection KW - MMI DA - 2019/11 PY - 2019 SN - 978-3-95450-203-5 DO - doi:10.18429/JACoW-HIAT2018-WEPB15 UR - http://jacow.org/hiat2018/papers/wepb15.pdf ER -