| 兰州重离子加速器冷却储存环中电子冷却性能 |
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| 引用本文： | 杨晓东,李杰,冒立军,李国宏,马晓明,晏太来,宋明涛,原有进,杨建成,毛瑞士,赵铁成,李朋,张玮,殷达钰,柴伟平,贾欢,郑文亨,张小虎.兰州重离子加速器冷却储存环中电子冷却性能[J].强激光与粒子束,2012,24(10):2435-2440. |
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| 作者姓名： | 杨晓东 李杰 冒立军 李国宏 马晓明 晏太来 宋明涛 原有进 杨建成 毛瑞士 赵铁成 李朋 张玮 殷达钰 柴伟平 贾欢 郑文亨 张小虎 |
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| 作者单位： | 1.中国科学院 近代物理研究所, 兰州 730000; |
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| 基金项目： | 国家自然科学基金项目(10975166，10905083，10921504) |
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| 摘 要： | 为了在兰州重离子加速器冷却储存环(HIRFL-CSR)上开展一维离子束序化的研究，在CSR主环上，对6.39 MeV/u的58Ni19+离子束进行了冷却累积实验。测量了离子束与电子束之间不同的水平、垂直夹角以及不同电子束剖面的情况下，束流累积及束流寿命变化情况;重点研究了离子束衰减过程中动量分散随离子数的变化规律，拟合计算得到了动量分散随离子数按照幂函数衰减的指数;在给定离子数的情况下，动量分散随夹角、电子束剖面的依赖关系,为下一步在CSR上获得纵向一维有序化离子束的研究做准备。在实验中观测到在较大的夹角情况下，离子束出现纵向振荡和中心频率移动。
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| 关 键 词： | 电子冷却 束流序化 幂指数 动量分散 |
| 收稿时间： | 2012/5/8 |
Electron cooling performance at HIRFL-CSR |
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| Yang Xiaodong,Li Jie,Mao Lijun,Li Guohong,Ma Xiaoming,Yan Tailai,Song Mingtao,Yuan Youjin,Yang Jiancheng,Mao Ruishi,Zhao Tiecheng,Li Peng,Zhang Wei,Yin Dayu,Chai Weiping,Jia Huan,Zheng Wenheng,Zhang Xiaohu.Electron cooling performance at HIRFL-CSR[J].High Power Laser and Particle Beams,2012,24(10):2435-2440. |
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| Authors: | Yang Xiaodong Li Jie Mao Lijun Li Guohong Ma Xiaoming Yan Tailai Song Mingtao Yuan Youjin Yang Jiancheng Mao Ruishi Zhao Tiecheng Li Peng Zhang Wei Yin Dayu Chai Weiping Jia Huan Zheng Wenheng Zhang Xiaohu |
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| Affiliation: | 1.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China |
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| Abstract: | In order to investigate the one-dimensional beam ordering in HIRFL-CSR, the ion beam of 58Ni19+ with the energy of 6.39 MeV/u was accumulated in the main ring of HIRFL-CSR with the help of electron cooling. The maximum accumulated ion beam intensity in the 10 seconds was measured, and the lifetime of ion beams was measured. The momentum spread of the ion beam varying with the particle number was measured during the ion beam decay, the power exponent was derived from these data, in additional, the momentum spread in the case of a constant particle number was plotted with the angle between ion and electron beams and electron beam profile. The oscillation and shift of the central frequency of the ion beam were observed during the experiments when the angle was large. |
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| Keywords: | electron cooling beam ordering power exponent momentum spread |
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