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ECR离子源外电子注入技术研究

唐城 钱程 孙良亭 张雪珍 张子民 李中平 赵环昱 卢旺 赵红卫

唐城, 钱程, 孙良亭, 张雪珍, 张子民, 李中平, 赵环昱, 卢旺, 赵红卫. ECR离子源外电子注入技术研究[J]. 原子核物理评论, 2017, 34(2): 164-169. doi: 10.11804/NuclPhysRev.34.02.164
引用本文: 唐城, 钱程, 孙良亭, 张雪珍, 张子民, 李中平, 赵环昱, 卢旺, 赵红卫. ECR离子源外电子注入技术研究[J]. 原子核物理评论, 2017, 34(2): 164-169. doi: 10.11804/NuclPhysRev.34.02.164
TANG Cheng, QIAN Cheng, SUN Liangting, ZHANG Xuezhen, ZHANG Zimin, LI Zhongping, ZHAO Huanyu, LU Wang, ZHAO Hongwei. Research on External Electron Injection Technology in ECRIS[J]. Nuclear Physics Review, 2017, 34(2): 164-169. doi: 10.11804/NuclPhysRev.34.02.164
Citation: TANG Cheng, QIAN Cheng, SUN Liangting, ZHANG Xuezhen, ZHANG Zimin, LI Zhongping, ZHAO Huanyu, LU Wang, ZHAO Hongwei. Research on External Electron Injection Technology in ECRIS[J]. Nuclear Physics Review, 2017, 34(2): 164-169. doi: 10.11804/NuclPhysRev.34.02.164

ECR离子源外电子注入技术研究

doi: 10.11804/NuclPhysRev.34.02.164
基金项目: 国家自然科学基金资助项目(11305228)
详细信息
    作者简介:

    唐城(1991-),男,陕西宝鸡人,硕士研究生,从事核能科学与工程研究;E-mail:chengtang@impcas.ac.cn。

  • 中图分类号: TL501.5

Research on External Electron Injection Technology in ECRIS

Funds: National Natural Science Foundation of China(11305228)
  • 摘要: 使用电子枪对ECR(Electron Cyclotron Resonance)等离子体注入外电子束是继铝衬弧腔、偏压盘之后,对等离子体电子的额外补充的又一种手段,通过向弧腔中注入一定能量与流强的电子束,以期提高引出束流的流强与电荷态。但由于该方法可控参数繁多,经验积累与报道资料都很少,且设计与操作远不如偏压盘等手段简便,故一直未能得到深入研究。通过以三维仿真软件CST粒子工作室对注入到弧腔电子束的运动轨迹的模拟结果为依据、以18 GHz ECR蒸发冷却源为平台,进行了ECR等离子体注入电子束的实验,结果表明:在一定实验条件下,当注入电子束能量超过1 800 eV时,会产生一种引出的离子束流的激增现象。在这个现象中,脉冲与直流的流强均比未注入电子时要高,束流电荷态向高价方向移动,且可通过控制实验条件来控制这种现象。最后对于这种电子并未通过共振面,却能起到提高电荷态与流强的作用进行了分析与讨论,并认为该现象在改善直流束与脉冲束性能的方面都有着积极的意义。


    The injection of the electron beam into the ECR (Electron Cyclotron Resonance)plasma by electron gun is a new method for the additional supplementary of the plasma electron, following the aluminum chamber wall and the bias plate, we are expecting for the higher current and charge state of the ion beam with it. However, because of the controllable parameter's variety, the lack of the accumulation of experience and data, and the shortage of convenience in designing and experimental practicing compared by biased disk and other means,it has always not been intensively studied. In this article, we take the 18 GHz ECR Ion Source using evaporative cooling technique as experimental platform, do the experiment of injecting electron into ECR plasma base on the simulation result of the electron beam's path in ECR's chamber by the 3D simulation software CST the particle studio. It shows that a pulsing leap of the current of the extracting ion beam appears when the injecting electron's energy is above 1 800 eV. In the mean time, the top of the pulse and the average current of the ion beam rises, the ionization state moves to a higher level. This phenomenon can be turned on and off by controlling the experimental condition. At the last part of the article, we discuss this improvement of the current and charge state of the ion beam despite of the position's missing between the injection of electron beam and the resonance surface, and hold the opinion that this phenomenon is positive to both pulsed and direct beam.
  • [1] GELLER R Electron Cyclotron Resonance Ion Sources and ECR Plasmas[M]. Institute of Physics Publishing Bristol and Philadelphia, 1996.
    [2] MELIN G, BOURG F, BRIAND P, et al. Rev Sci Instrum,1990, 61(1): 236.
    [3] BOLSHUKHIN D, MEYER D, WOLTERS U, et al. Rev SciInstrum, 1998, 69(2): 1197.
    [4] NAKAGAWA T, ARJE J, MIYAZAWA Y, et al. Rev Sc.Instrum, 1998, 69(2): 637.
    [5] SUN Liangting. Design and Experimental Study of Highly Charged ECR Ion Sources[D]. Lanzhou: Institute of Mod-ern Physics, Chinese Academy of Sciences, 2004: 21. (in Chi-nese)(孙良亭. 高电荷态ECR离子源的设计与实验研究[D]. 兰州: 中国科学院近代物理研究所, 2004: 21.)
    [6] DRENTJE A G, WOLTERS U, NADZEYKA A, et al. Rev Sci Instrum, 2002, 73: 775.
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出版历程
  • 收稿日期:  2016-06-01
  • 修回日期:  2016-08-15
  • 刊出日期:  2017-06-20

ECR离子源外电子注入技术研究

doi: 10.11804/NuclPhysRev.34.02.164
    基金项目:  国家自然科学基金资助项目(11305228)
    作者简介:

    唐城(1991-),男,陕西宝鸡人,硕士研究生,从事核能科学与工程研究;E-mail:chengtang@impcas.ac.cn。

  • 中图分类号: TL501.5

摘要: 使用电子枪对ECR(Electron Cyclotron Resonance)等离子体注入外电子束是继铝衬弧腔、偏压盘之后,对等离子体电子的额外补充的又一种手段,通过向弧腔中注入一定能量与流强的电子束,以期提高引出束流的流强与电荷态。但由于该方法可控参数繁多,经验积累与报道资料都很少,且设计与操作远不如偏压盘等手段简便,故一直未能得到深入研究。通过以三维仿真软件CST粒子工作室对注入到弧腔电子束的运动轨迹的模拟结果为依据、以18 GHz ECR蒸发冷却源为平台,进行了ECR等离子体注入电子束的实验,结果表明:在一定实验条件下,当注入电子束能量超过1 800 eV时,会产生一种引出的离子束流的激增现象。在这个现象中,脉冲与直流的流强均比未注入电子时要高,束流电荷态向高价方向移动,且可通过控制实验条件来控制这种现象。最后对于这种电子并未通过共振面,却能起到提高电荷态与流强的作用进行了分析与讨论,并认为该现象在改善直流束与脉冲束性能的方面都有着积极的意义。


The injection of the electron beam into the ECR (Electron Cyclotron Resonance)plasma by electron gun is a new method for the additional supplementary of the plasma electron, following the aluminum chamber wall and the bias plate, we are expecting for the higher current and charge state of the ion beam with it. However, because of the controllable parameter's variety, the lack of the accumulation of experience and data, and the shortage of convenience in designing and experimental practicing compared by biased disk and other means,it has always not been intensively studied. In this article, we take the 18 GHz ECR Ion Source using evaporative cooling technique as experimental platform, do the experiment of injecting electron into ECR plasma base on the simulation result of the electron beam's path in ECR's chamber by the 3D simulation software CST the particle studio. It shows that a pulsing leap of the current of the extracting ion beam appears when the injecting electron's energy is above 1 800 eV. In the mean time, the top of the pulse and the average current of the ion beam rises, the ionization state moves to a higher level. This phenomenon can be turned on and off by controlling the experimental condition. At the last part of the article, we discuss this improvement of the current and charge state of the ion beam despite of the position's missing between the injection of electron beam and the resonance surface, and hold the opinion that this phenomenon is positive to both pulsed and direct beam.

English Abstract

唐城, 钱程, 孙良亭, 张雪珍, 张子民, 李中平, 赵环昱, 卢旺, 赵红卫. ECR离子源外电子注入技术研究[J]. 原子核物理评论, 2017, 34(2): 164-169. doi: 10.11804/NuclPhysRev.34.02.164
引用本文: 唐城, 钱程, 孙良亭, 张雪珍, 张子民, 李中平, 赵环昱, 卢旺, 赵红卫. ECR离子源外电子注入技术研究[J]. 原子核物理评论, 2017, 34(2): 164-169. doi: 10.11804/NuclPhysRev.34.02.164
TANG Cheng, QIAN Cheng, SUN Liangting, ZHANG Xuezhen, ZHANG Zimin, LI Zhongping, ZHAO Huanyu, LU Wang, ZHAO Hongwei. Research on External Electron Injection Technology in ECRIS[J]. Nuclear Physics Review, 2017, 34(2): 164-169. doi: 10.11804/NuclPhysRev.34.02.164
Citation: TANG Cheng, QIAN Cheng, SUN Liangting, ZHANG Xuezhen, ZHANG Zimin, LI Zhongping, ZHAO Huanyu, LU Wang, ZHAO Hongwei. Research on External Electron Injection Technology in ECRIS[J]. Nuclear Physics Review, 2017, 34(2): 164-169. doi: 10.11804/NuclPhysRev.34.02.164
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