首页 > 论文 > 激光与光电子学进展 > 54卷 > 4期(pp:41207--1)

双级加速离子光学系统几何参数研究

Geometric Parametric Study of Dual Stage Ion Optics

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

针对双级加速离子光学系统的设计,开展了栅极几何参数对离子光学系统性能影响的研究。采用质点网格法和蒙特卡罗碰撞法开展栅极关键几何参数对束流引出能力、束流发散角、交换电荷(CEX)离子的截获影响规律研究;另外,还开展了不同比冲下束流发散角、碰撞交换电荷离子的变化趋势研究。研究结果表明,屏栅孔径对束流引出能力、束流发散角、CEX离子截获电流以及鞍点电势都有影响,随着屏栅孔径的增加,束流引出能力、束流发散角和鞍点电势呈上升趋势。加速栅孔径的变化对CEX离子得能量分布有影响,随着加速栅孔径的增大,截获的高能CEX离子逐渐减少,而随着加速栅厚度的增加,束流发散角、CEX离子的截获数量和能量呈上升趋势。在8000 s比冲下,加速级间距的改变对束流引出能力影响较小。另外,比冲对离子光学系统性能也有影响,比冲越高,束流发散角越小,且加速栅截获的CEX离子也越少。

Abstract

The goal of the study is to identify the effect of the grid geometry parameters on the performance of the ion optics design. The combination of particle-in-cell method and Monte-Carlo collision method is used to study the influence of the critical geometrical parameters on the beamlet current capability, beamlet divergence angle and capture of charge exchange (CEX) ions. Moreover, the variation trends of beam divergence angle and impingement CEX ion are also investigated under different specific impulse conditions. The results show that with the increase of the screen grid aperture radius, the beamlet current capability, beam divergence angle and saddle point potential are increased. An increase in the accelerator grid radius produces a decrease in impingement CEX ion current. The beamlet divergence angle and the impingement CEX ion current both increase with the incremental thickness of accelerator grid. When the specific impulse is 8000 s, the change of the acceleration stage gap has little effect on the beamlet current capability. In addition, the higher the specific impulse, the smaller the beam divergence angle and the fewer the impingement CEX ions.

投稿润色
补充资料

中图分类号:V1

DOI:10.3788/lop54.041207

所属栏目:仪器,测量与计量

基金项目:真空低温技术与物理重点实验室基金(9140C550206150C55)

收稿日期:2016-11-25

修改稿日期:2016-12-18

网络出版日期:--

作者单位    点击查看

贾连军:兰州空间技术物理研究所真空技术与物理重点实验室, 甘肃 兰州 730000
张天平:兰州空间技术物理研究所真空技术与物理重点实验室, 甘肃 兰州 730000
陈娟娟:兰州空间技术物理研究所真空技术与物理重点实验室, 甘肃 兰州 730000
贾艳辉:兰州空间技术物理研究所真空技术与物理重点实验室, 甘肃 兰州 730000
刘明正:兰州空间技术物理研究所真空技术与物理重点实验室, 甘肃 兰州 730000

联系人作者:贾连军(jlj1323962@126.com)

备注:贾连军(1977-),男,博士,工程师,主要从事空间电推进技术方面的研究。

【1】Marques R I, Gabriel S B. Dual stage four grid (DS4G) ion engine for very high velocity change missions[C]. 31st International Electric Propulsion Conference, University of Michigan, Ann Arbor, USA, 2009.

【2】Bramanti C, Izzo D, Samaraee T, et al. Very high delta-V missions to the edge of the solar system and beyond enabled by the dual-stage 4-grid ion thruster concept[J]. Acta Astronautica, 2009, 64(7-8): 735-744.

【3】Walker R, Izzo D, Fearn D. Missions to the edge of the solar system using a new advanced dual-stage gridded ion thruster with very high specific impulse[C]. Proceedings of the International Symposium on Space Technology and Science, 2006, 25: 1106.

【4】Fearn D G. The application of gridded ion thrusters to high thrust, high specific impulse nuclear-electric missions[J]. Journal of the British Interplanetary Society, 2005, 27(1): 257-267.

【5】Lapointe M, Mikellides P. High power MPD thruster development at the NASA Glenn research center[J]. Journal of Pediatric Oncology Nursing, 2013, 14(2): 121.

【6】Longmier B W, Glover T W, Díaz F R C, et al. VASIMRVX-200: High power electric propulsion for space transportation beyond LEO[C]. AIAA SPACE 2009 Conference & Exposition, 2009.

【7】Walker R, Bramanti C, Sutherland O, et al. Initial experiments on a dual-stage 4-grid ion thruster for very high specific impulse and power[C]. 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2006: 4669.

【8】Bramanti C, Walker R, Sutherland O, et al. The innovative dual-stage 4-grid ion thruster concept-theory and first experimental results[C]. Fifty-Seventh International Astronautical Congress, 2006: 4.

【9】Fearn D G. The use of ion thrusters for orbit raising[J]. Journal of the British Interplanetary Society, 1978, 33(33): 129-137.

【10】Bramanti C, Fearn D. The design and operation of beam diagnostics for the dual stage 4-grid ion thruster[C]. 30th International Electric Propulsion Conference, Florence, Italy September, 2007: 17-20.

【11】Coletti M, Gabriel S. Dual stage ion optics, a parametric study[C]. 42nd AIAA Plasmadynamics and Lasers Conference in conjunction with the 18th International Conference on MHD Energy Conversion (ICMHD), 2011: 3741.

【12】Coletti M, Gabriel S. Dual Stage Ion Optics, a Parametric Study on Performances and Lifetime[C]. 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011: 5735.

引用该论文

Jia Lianjun,Zhang Tianping,Chen Juanjuan,Jia Yanhui,Liu Mingzheng. Geometric Parametric Study of Dual Stage Ion Optics[J]. Laser & Optoelectronics Progress, 2017, 54(4): 041207

贾连军,张天平,陈娟娟,贾艳辉,刘明正. 双级加速离子光学系统几何参数研究[J]. 激光与光电子学进展, 2017, 54(4): 041207

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF