摘要
在核工业、民用及基础研究领域,高能强流质子加速器有着十分广泛而重要的应用,中国原子能科学研究院提出了1台2 GeV连续波固定场交变梯度质子加速器的解决方案。在该方案中,工作在44.4 MHz的大功率高品质因数、高分路阻抗波导型高频腔研制极其重要。本文首先对工作在44.4 MHz的矩形、欧米伽形、跑道形及船形等4种形状的波导型高频腔进行了模拟计算研究,经比较发现,船形高频腔具有最高的品质因数和分路阻抗,是2 GeV连续波固定场交变梯度质子加速器的较好选择。在此基础上,为掌握船形高频腔的实际加工工艺,同时利用现有230 MeV超导回旋加速器的功率源设备开展高功率实验研究,设计了71.26 MHz的缩比例船形高频腔样机。
High-energy and high-intensity proton accelerators were widely applied in the fields of the nuclear industry,civil applications and fundamental researches.In this scenario,a 2 GeV continuous wave(CW)fixed field alternating gradient(FFAG)proton accelerator was proposed by the China Institute of Atomic Energy.Development of the 44.4 MHz high power waveguide-type RF cavity with high quality factor and high shunt impedance is extremely important.The simulation study results on four geometries of waveguide-type RF cavities,which were rectangular,omega,racetrack and boat ones were presented.It is found that the boat shape cavity has the highest quality factor and the highest shunt impedance,and is the most promising candidate for the 2 GeV CW FFAG proton accelerator.In order to obtain the fabrication technology of the boat shape cavity,and conduct high power RF conditioning study in the future by using the existing power source for the 230 MeV superconducting cyclotron,a 71.26 MHz scaled-down cavity prototype was designed.
作者
裴士伦
殷治国
张天爵
杨光
PEI Shilun;YIN Zhiguo;ZHANG Tianjue;YANG Guang(Research and Design Center for Cyclotron,China Institute of Atomic Energy,Beijing 102413,China)
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2020年第8期1519-1524,共6页
Atomic Energy Science and Technology
关键词
高能强流质子加速器
固定场交变梯度加速器
波导型高频腔
品质因数
分路阻抗
high-energy and high-intensity proton accelerator
fixed field alternating gradient accelerator
waveguide-type RF cavity
quality factor
shunt impedance
