The IH-RFQ for HIRFL-CSR injector

被引：5
|
作者：
Li, Zhong-Shan [1 ,2 ]
Yin, Xue-Jun [1 ]
Du, Heng [1 ]
Xia, Jia-Wen [1 ]
Yuan, You-Jin [1 ]
Yang, Jian-Cheng [1 ]
Li, Peng [1 ]
Li, Jie [1 ]
Li, Xiao-Ni [1 ]
Shen, Guo-Dong [1 ]
Ge, Wen-Wen [1 ,2 ]
Zheng, Wen-Heng [1 ]
Zhang, Xiao-Hu [1 ]
Wang, Ke-Dong [1 ,2 ]
Gao, Yun-Zhe [1 ,2 ]
Kong, Qi-Yu [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
NUCLEAR SCIENCE AND TECHNIQUES | 2018年 / 29卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Heavy ion linac; Radio frequency quadrupole accelerator; Electromagnetic simulation; Field optimization;
D O I：
10.1007/s41365-018-0416-y
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
A new linac injector CSR-LINAC for the Cooler Storage Ring of the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR) is proposed to improve the performance of the HIRFL. As a key component of the CSR-LINAC, the 108.48-MHz radio frequency quadrupole (RFQ) is under design at the Institute of Modern Physics. Heavy ions with mass-to-charge ratios of 3-7 will be accelerated from 4 to 300 keV/u by the RFQ. In the beam dynamics design, the New Four-Section Procedure is adopted to improve the transmission efficiency and obtain a compact structure. In this paper, a transmission efficiency of 98.0% in the 3.07-m-long cavity was obtained. The Interdigital H-type structure is employed because of its mechanical stability and high shunt impedance. The RF performance of the cavity is investigated by the electromagnetic simulation. The optimized results of the electric field to meet the beam dynamics requirements are presented in this paper.
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收藏
页数：9
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