充气型放电毛细管的密度测量及磁流体模拟

董克攻; 吴玉迟; 郑无敌; 朱斌; 曹磊峰; 何颖玲; 马占南; 刘红杰; 洪伟; 周维民; 赵宗清; 焦春晔; 温贤伦; 魏来; 臧华平; 余金清; 谷渝秋; 张保汉; 王晓方

doi:10.7498/aps.60.095202

摘要

在激光尾波场电子加速机理中,为了有效地加速电子,需要抑制衍射散焦等造成的激光传输不稳定性问题. 激光脉冲的稳定传输不仅有利于能量耦合给等离子体波,而且对电子束的注入及稳定加速有着重要影响,具有一定横向密度分布的充气型放电毛细管可以有效引导激光脉冲的传输. 利用等离子体的Stark展宽效应对毛细管产生的等离子体进行密度测量,给出了等离子体密度与充气压强之间的关系. 利用磁流体程序CRMHA对毛细管的放电特性进行了模拟,研究了毛细管引导效应的形成机理.

关键词:

Abstract

To accelerate the electrons efficiently in the laser wake-field accelerator, it is necessary to suppress the instability induced by the diffraction and the defocusing of the laser pulse. The gas-filled capillary discharge waveguide can generate an approximately parabolic density distribution, which can guide the laser pulse efficiently and suppress the instability. Using the Stark effect, this plasma density distribution is measured in this paper, and the relationship between plasma density and filled pressure is presented. By using the MHD code CRMHA, the formation of the capillary waveguide is simulated and researched in detail.

Keywords:

gas-filled capillary discharge waveguide /
Stark broadening /
MHD simulation /
guiding

作者及机构信息

(1)北京应用物理与计算数学研究所,北京 100088; (2)中国工程物理研究院激光聚变研究中心等离子体物理重点实验室,绵阳 621900; (3)中国工程物理研究院激光聚变研究中心等离子体物理重点实验室,绵阳 621900;中国科学技术大学近代物理系,中国科学院基础等离子体物理重点实验室,合肥 230026; (4)中国科学技术大学近代物理系,中国科学院基础等离子体物理重点实验室,合肥 230026

基金项目: 国家自然科学基金面上项目(批准号: 10975121,10876039,11075160),中国工程物理研究院发展基金重点项目(批准号: 2009A0102003),国家自然科学基金青年基金(批准号: 10905051)资助的课题.

Authors and contacts

(1)Institute of Applied Physics and Computational Mathematics, Beijing 100088, China; (2)Key Laboratory of Basic Plasma Physics of Chinese Academy of Sciences, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China; (3)Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China; (4)Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, China;Key Laboratory of Basic Plasma Physics of Chinese Academy of Sciences, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

参考文献

[1]	Tajima T, Dawson J M 1979 Phys. Rev. Lett. 43 267
[2]	Xu H, Sheng Z M, Zhang 2007 J. Acta Phys. Sin. 56 968 (in Chinese)[徐慧、盛政明、张杰 2007 物理学报 56 968]
[3]	Dong K G, Gu Y Q, Zhu B, Wu Y C, Cao L F, He Y L, Liu H J, Hong W, Zhou W M, Zhao Z Q, Jiao C Y, Wen X L, Zhang B H, Wang X F 2010 Acta Phys. Sin. 59 8733 (in Chinese)[董克攻、谷渝秋、朱斌、吴玉迟、曹磊峰、何颖玲、刘红杰、洪伟、周维民、赵宗清、焦春晔、温贤伦、张保汉、王晓方 2010 物理学报 59 8733]
[4]	Kneip S, Nagel S R, Martins S F, Mangles S P D, Bellei C, Chekhlov O, Clarke R J, Delerue N, Divall E J, Doucas G, Ertel K, Fiuza F, Fonseca R, Foster P, Hooker C J, Krushelnick K, Mori W B, Streeter M J V, Urner D, Vieira J, Silva L.O, Najmudin Z 2009 Phys. Rev. Lett. 103 035002
[5]	Froula D H, Clayton C E, Doppner T, Marsh K A, Barty C P J, Divol L, Fonseca R A, Glenzer S H, Joshi C, Lu W, Martins S F, Michel P, Mori W B, Palastro J P, Pollock B B, Pak A, Ralph J E, Ross J S, Siders C W, Silva L O, Wang T 2009 Phys. Rev. Lett. 103 215006
[6]	Jackel S, Burris R, Grun 1995 J. Opt. Lett. 20 1086
[7]	Esarey E, Sprangle P, Krall J 1997 IEEE J. Quantum Electron. 33 1879
[8]	Spence D J, Burnett P D S, Hooker S M 1999 Opt. Lett. 24 993
[9]	Spence D J, Hooker S M 2001 Phys. Rev. E 63 015401(R)
[10]	Gonsalves A J, Rowlands-Rees T P, Broks B H P, van der Mullen J J A M, Hooker S M 2007 Phys. Rev. Lett. 98 025002
[11]	Lan K, Zhang, Eur Y Q 2002 Phys. J. Ap. 19 103
[12]	Lan K, Ernst Fill, Jurgen Meyer-ter-Vehn 2003 Eur. Phys. Lett. 64 454
[13]	Xiang Z L, Yu C X 1982 The diagnosis technology of high-temperature plasma (Vol.1)(Shanghai Scientific and Technical Publishers)p83(in Chinese)[项志遴、余昌旋编著 1982 高温等离子体诊断技术(上册) (上海科学技术出版社) 第83页]
[14]	Ashkenazy J, Kipper R, Caner M 1991 Phys. Rev. A 43 5568

施引文献

[1]	Tajima T, Dawson J M 1979 Phys. Rev. Lett. 43 267
[2]	Xu H, Sheng Z M, Zhang 2007 J. Acta Phys. Sin. 56 968 (in Chinese)[徐慧、盛政明、张杰 2007 物理学报 56 968]
[3]	Dong K G, Gu Y Q, Zhu B, Wu Y C, Cao L F, He Y L, Liu H J, Hong W, Zhou W M, Zhao Z Q, Jiao C Y, Wen X L, Zhang B H, Wang X F 2010 Acta Phys. Sin. 59 8733 (in Chinese)[董克攻、谷渝秋、朱斌、吴玉迟、曹磊峰、何颖玲、刘红杰、洪伟、周维民、赵宗清、焦春晔、温贤伦、张保汉、王晓方 2010 物理学报 59 8733]
[4]	Kneip S, Nagel S R, Martins S F, Mangles S P D, Bellei C, Chekhlov O, Clarke R J, Delerue N, Divall E J, Doucas G, Ertel K, Fiuza F, Fonseca R, Foster P, Hooker C J, Krushelnick K, Mori W B, Streeter M J V, Urner D, Vieira J, Silva L.O, Najmudin Z 2009 Phys. Rev. Lett. 103 035002
[5]	Froula D H, Clayton C E, Doppner T, Marsh K A, Barty C P J, Divol L, Fonseca R A, Glenzer S H, Joshi C, Lu W, Martins S F, Michel P, Mori W B, Palastro J P, Pollock B B, Pak A, Ralph J E, Ross J S, Siders C W, Silva L O, Wang T 2009 Phys. Rev. Lett. 103 215006
[6]	Jackel S, Burris R, Grun 1995 J. Opt. Lett. 20 1086
[7]	Esarey E, Sprangle P, Krall J 1997 IEEE J. Quantum Electron. 33 1879
[8]	Spence D J, Burnett P D S, Hooker S M 1999 Opt. Lett. 24 993
[9]	Spence D J, Hooker S M 2001 Phys. Rev. E 63 015401(R)
[10]	Gonsalves A J, Rowlands-Rees T P, Broks B H P, van der Mullen J J A M, Hooker S M 2007 Phys. Rev. Lett. 98 025002
[11]	Lan K, Zhang, Eur Y Q 2002 Phys. J. Ap. 19 103
[12]	Lan K, Ernst Fill, Jurgen Meyer-ter-Vehn 2003 Eur. Phys. Lett. 64 454
[13]	Xiang Z L, Yu C X 1982 The diagnosis technology of high-temperature plasma (Vol.1)(Shanghai Scientific and Technical Publishers)p83(in Chinese)[项志遴、余昌旋编著 1982 高温等离子体诊断技术(上册) (上海科学技术出版社) 第83页]
[14]	Ashkenazy J, Kipper R, Caner M 1991 Phys. Rev. A 43 5568

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