6-43 Status of Intense Proton Source for C-ADS Injector

• 作者: He Yuan Liu Pengyan Ma Hongyi Sun Liangting Wu Qi Yang Yao Zhang Wenhui Zhang Xuezhen Zhang Zimin Zhao Hongwei
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 关键词: STATUS INTENSE PROTON
• 年，卷（期）: 2014,（1）
• 页码范围: 302-302
• 页数: 1页
• 分类号: O4

摘要

Two compact and intense 2.45 GHz permanent proton sources and their corresponding low energy beam transport(LEBT) systems were developed successfully for China Accelerator Driven Sub-critical system (C-ADS) in 2014,one of which was built at IMP, Lanzhou and the otherat IHEP, Beijing. Both proton sources can deliver stable10 mA/35 keV proton beams at CW mode to theentrances of the downstream RFQs. As shown in Fig. 1,the beams extracted by a 3-electrode extraction systemare transported by the LEBT system, which is composedof 2 identical solenoids, and into the 3.2 or 2.1MeV radio-frequency quadrupole (RFQ). In order toensure superconducting cavities commissioning and protection,an electrostatic-chopper has been designed andinstalled in the LEBT line that can chop the cw beamFig. 2 Total hydrogen ion beam current versus input power.into a pulsed one. The achieved fall/rise time of thechopper is less than 20 ns.