Beam dynamics design of HIAF RFQ
Beam dynamics design of HIAF RFQ
复制标题
HIAF RFQ 的梁动力学设计
DOI：
10.1142/s0218301321501044
复制
发表时间：
2021-12
影响因子：
1.1
通讯作者：
Lu Li
中科院分区：
文献类型：
--
作者：
Chao Wang;Weiping Dou;Zhijun Wang;Yue Tao;Weilong Chen;Chi Feng;Shuhui Liu;Yuan He;Yuanshuai Qin;Xin Qi;Wangsheng Wang;Yongzhi Jia;Chenzhang Yuan;Lu Li
高强度重离子加速器装置是中国科学院现代物理研究所建设的下一代先进重离子加速器装置。RFQ的设计目的是为注入直线加速器提供连续波束和2毫安的脉冲束，具有高质量的纵束分布。研究了两种不同的抑制纵向发射度的瞄准设计，选择了由三谐波预聚束器和纵向接受度小的RFQ加速器组成的优化方案。重点讨论了束前和RFQ之间的部分，在这一段，束束产生的空间电荷效应非常严重。本文进行了优化设计和分析。
The high-intensity heavy ion accelerator facility is a next-generation advanced heavy-ion accelerator facility built by the Institute of Modern Physics, Chinese Academy of Sciences. The RFQ is designed to provide a continuous wave beam and 2[Formula: see text]mA pulse beam with high-quality longitudinal beam distribution for the injection linear accelerator. Two different designs of aiming to suppress the longitudinal emittance were studied, and the optimized scheme which composed of a three-harmonic pre-buncher and an RFQ accelerator with small longitudinal acceptance was chosen. More emphasis is put on the section between pre-buncher and RFQ, where the space charge effect becomes severe with bunched beam. The optimal design and the analysis are presented in this paper.