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RF structure design of the China Material Irradiation Facility RFQ

文献类型：期刊论文

作者Li, Chenxing1,2,3; He, Yuan1; Xu, Xianbo1; Zhang, Zhouli1; Wang, Fengfeng1; Dou, Weiping1; Wang, Zhijun1; Wang, Tieshan2
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
出版日期2017-10-11
卷号869页码:38-45
关键词Accelerator based neutron source RFQ PISLs Multi-physics study
ISSN号0168-9002
DOI10.1016/j.nima.2017.06.045
英文摘要The radio frequency structure design of the radio frequency quadrupole (RFQ) for the front end of China Material Irradiation Facility (CMIF), which is an accelerator based neutron irradiation facility for fusion reactor material qualification, has been completed. The RFQ is specified to accelerate 10 mA continuous deuteron beams from the energies of 20 keV/u to 1.5 MeV/u within the vane length of 5250 mm. The working frequency of the RFQ is selected to 162.5 MHz and the inter-vane voltage is set to 65 kV. Four-vane cavity type is selected and the cavity structure is designed drawing on the experience of China Initiative Accelerator Driven System (CIADS) Injector II RFQ. In order to reduce the azimuthal asymmetry of the field caused from errors in fabrication and assembly, a frequency separation between the working mode and its nearest dipole mode is reached to 17.66 MHz by utilizing 20 pairs of pi-mode stabilizing loops (PISLs) distributed along the longitudinal direction with equal intervals. For the purpose of tuning, 100 slug tuners were introduced to compensate the errors caused by machining and assembly. In order to obtain a homogeneous electrical field distribution along cavity, vane cutbacks are introduced and output endplate is modified. Multi-physics study of the cavity with radio frequency power and water cooling is performed to obtain the water temperature tuning coefficients. Through comparing to the worldwide CW RFQs, it is indicated that the power density of the designed structure is moderate for operation under continuous wave (CW) mode. (C) 2017 Elsevier B.V. All rights reserved.
资助项目National Magnetic Confinement Fusion Science Program of China[2014GB104001] ; National Natural Science Foundation of China[91426303]
WOS研究方向Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种英语
WOS记录号WOS:000409530200006
出版者ELSEVIER SCIENCE BV
资助机构National Magnetic Confinement Fusion Science Program of China ; National Natural Science Foundation of China
源URL[http://119.78.100.186/handle/113462/45576]  
专题中国科学院近代物理研究所
通讯作者He, Yuan
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Li, Chenxing,He, Yuan,Xu, Xianbo,et al. RF structure design of the China Material Irradiation Facility RFQ[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2017,869:38-45.
APA Li, Chenxing.,He, Yuan.,Xu, Xianbo.,Zhang, Zhouli.,Wang, Fengfeng.,...&Wang, Tieshan.(2017).RF structure design of the China Material Irradiation Facility RFQ.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,869,38-45.
MLA Li, Chenxing,et al."RF structure design of the China Material Irradiation Facility RFQ".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 869(2017):38-45.

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来源：近代物理研究所

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