| 突出电极对四杆型RFQ腔体并联阻抗及场平整性的影响 |
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| 引用本文： | 张周礼,赵红卫,R. A. Jameson,许哲,张生虎.突出电极对四杆型RFQ腔体并联阻抗及场平整性的影响[J].强激光与粒子束,2010,22(2). |
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| 作者姓名： | 张周礼 赵红卫 R. A. Jameson 许哲 张生虎 |
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| 作者单位： | 1. 中国科学院 近代物理研究所， 兰州 730000；2. 中国科学院 研究生院， 北京 100049; 3. Institute of Applied Physics, Goethe University, Max-von-Laue-Str 1, D60438, Frankfurt-am-Main, Germany |
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| 摘 要： | 中国科学院近代物理研究所正在进行等离子体直接注入方案的研究,以便为重离子物理研究提供稳定可靠的高流强束流。由于工作频率较低,用于等离子体直接注入方案的RFQ腔体采用了适合于低频的四杆型结构。在完成束流动力学设计的前提下,研究了RFQ腔体支撑臂的各参数对并联阻抗的影响。由于突出电极之间存在着一定大小的电容,会对腔体的性能产生影响,为使腔体达到最优化的设计,进行了突出电极对并联阻抗及场平整性的影响的研究,并给出了突出电极的取值范围。
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| 关 键 词： | 重离子加速器 MAFIA 突出电极 并联阻抗 场平整性 |
| 收稿时间： | 1900-01-01; |
Influence of projecting electrodes on shunt impedance and flatness of 4-rod radiofrequency quadrupole cavity |
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| ZhangZhouli,ZhaoHongwei,R.A.Jameson,XuZhe,ZhangShenghu.Influence of projecting electrodes on shunt impedance and flatness of 4-rod radiofrequency quadrupole cavity[J].High Power Laser and Particle Beams,2010,22(2). |
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| Authors: | ZhangZhouli ZhaoHongwei RAJameson XuZhe ZhangShenghu |
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| Institution: | 1. Institute of Modern Physics, Chinese Academy of Sciences, P. O. Box 31, Lanzhou 730000, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3. Insitute of Applied Physics, Goethe University Max-von-Laue-Str. 1, D60438, Frankfurt-am-Main, Germany |
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| Abstract: | Due to its advantages at low frequency,a 4-rod radiofrequency quadrupole(RFQ) structure has been adopted for the RFQ cavity at the Institute of Modern Physics,Chinese Academy of Sciences,which works at 100 MHz and is used for the direct plasma injection scheme.After the beam dynamics design,the parameters of the stems of the cavity were optimized to obtain the maximum shunt impedance.The capacitance existing in the projecting electrodes will affect the properties of the cavity,therefore,the influence of the... |
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| Keywords: | MAFIA heavy ion accelerator MAFIA projecting electrodes shunt impedance flatness |
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