Linac RF power sources development for China Spallation Neutron Source
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摘要: 中国散裂中子源加速器质子束流加速能量为1.6 GeV，重复频率为25 Hz，撞击固体金属靶产生散射中子，一期工程的打靶束流功率为100 kW。直线加速器的设计束流流强为15 mA，输出能量为81 MeV。射频加速和聚束系统包括一台射频四极场加速器、中能束流传输线的两个聚束器、四节漂移管直线加速器加速腔和直线-环束流传输线的一个散束器，与之相对应，共有8个单元在线运行的射频功率源为其提供所需的射频功率。目前，直线射频功率源系统预研项目已全部完成，各项性能参数均已达到设计指标，当前正处在批产安装调试阶段。151013
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关键词:
- 射频功率源 /
- 数字化射频低电平控制 /
- 四极管 /
- 串联谐振 /
- 高压电源
Abstract: The China Spallation Neutron Source accelerator is designed to accelerate proton beam pulses to 1.6 GeV at 25 Hz repetition rate, striking a solid metal target to produce spallation neutrons. The accelerator provides a beam power of 100 kW on the target in the first phase. The linac is designed with beam energy of 81 MeV and a peak current of 15 mA. It consists of RFQ, two bunchers of medium energy beam transmission line, four DTL tanks, and one debuncher of linac-to-ring beam transmission line. Correspondingly eight online RF power sources are used to power these accelerators. So far, all RD prototypes of the CSNS linac RF power sources have been completed, and the performance meets the design requirements. Mass production, equipment installation and commissioning are still under way.-
Key words:
- RF power source /
- digital low level RF control /
- tetrode /
- series resonance /
- high voltage power supply
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