强激光与锥型结构靶相互作用准直电子束粒子模拟研究

吴凤娟; 周维民; 单连强; 李芳; 刘东晓; 张智猛; 李博原; 毕碧; 伍波; 王为武; 张锋; 谷渝秋; 张保汉

doi:10.7498/aps.63.094101

摘要

利用PIC（particle-in-cell）方法模拟研究了超短强激光与锥型三明治结构靶相互作用快电子束的产生和传输，并与锥通道靶、锥丝靶和锥靶在相同激光参数下的作用结果进行了比较. 研究发现强激光与锥三明治靶作用产生的快电子能被不同密度材料产生的准静态界面强磁场有效地准直传输. 相对其他三种锥型结构靶，锥三明治靶能产生更多数目及更高能量的快电子，提高了激光到快电子的能量转换效率和快电子束的品质，这对快点火能量沉积是有利的.

关键词:

Abstract

Generation and propagation of fast electron bunches from interaction of short, ultra intense laser with cone-sandwich target are investigated by PIC (particle-in-cell) simulation. Results are compared with those in the interaction of the same laser parameters with cone-channel target, cone-wire target and cone target. Fast electrons generated by the interaction of intense laser with cone-sandwich target can be effectively collimated and propagated by the quasi-static strong magnetic field generated by the material surface of different densities. Compared with the other three cone-structured target, the more number and the higher energy of the fast electrons are generated by cone-sandwich target. This can well improve the energy conversion efficiency of the laser to fast electrons and the quality of fast electron bunches, which are favorable for the fast ignition energy deposition.

Keywords:

作者及机构信息

1.
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;

2.
西南科技大学极端条件物质特性联合实验室, 绵阳 621010

基金项目: 国家自然科学基金（批准号：11174259，11175165，11305157）和西南科技大学博士基金（批准号：10ZX7127）资助的课题.

Authors and contacts

1.
Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;

2.
Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 11174259, 11175165, 11305157), and the Research Foundation for the Doctor of Southwest University of Science and Technology, China (Grant No. 10ZX7127).

参考文献

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施引文献

[1]	Zhang J T, He B, He X T, Chang T Q, Xu L B, Andereev N E 2001 Acta Phys. Sin. 50 921 (in Chinese) [张家泰, 何斌, 贺贤土, 常铁强, 许林宝, 安德列夫 N E 2001 50 921]
[2]	Tabak M, Hammer J, Glinsky M E, Kruer W L, Wilks S C, Woodworth J, Campbell E M, Perry M D, Mason R J 1994 Phys. Plasma 1 1626
[3]	Hinkel D E 2013 Nucl. Fusion 53 104027
[4]	Kodama R, Shiraga H, Shigemori K, Toyama Y, Fujioka S, Azechi H, Fujita H, Habara H, Hall T, Izawa Y, Jitsuno T, Kitagawa Y, Krushelnick K M, Lancaster K L, Mima K, Nagai K, Nakai M, Nishimura H, Norimatsu T, Norreys P A, Sakabe S, Tanaka K A, Youssef A, Zepf M, Yamanaka T 2002 Nature 418 933
[5]	Kodama R, Norreys P A, Mima K, Dangor A E, Evans R G, Fujita H, Kitagawa Y, Krushelnick K, Miyakoshi T, Miyanaga N, Norimatsu T, Rose S J, Shozaki T, Shigemori K, Sunahara A, Tampo M, Tanaka K A, Toyama Y, Yamanaka T, Zepf M 2001 Nature 412 798
[6]	Cottrill L A, Langdon A B, Lasinski B F, Lund S M, Molvig K, Tabak M, Town R P J, Williams E A 2008 Phys. Plasma 15 082108
[7]	Mu J, Sheng Z M, Zheng J, Zhang J 2013 Acta Phys. Sin. 62 135202 (in Chinese) [穆洁, 盛政明, 郑君, 张杰 2013 62 135202]
[8]	Kodama R, Sentoku Y, Chen Z L, Kumar G R, Hatchett S P, Toyama Y, Cowan T E, Freeman R R, Fuchs J, Izawa Y, Key M H, Kitagawa Y, Kondo K, Matsuoka T, Nakamura H, Nakatsutsumi M, Norreys P A, Norimatsu T, Snavely R A, Stephens R B, Tampo M, Tanaka K A, Yabuuchi T 2004 Nature 432 1005
[9]	Yang X H, Xu H, Ma Y Y, Shao F Q, Yin Y, Zhuo H B, Yu M Y, Tian C L 2011 Phys. Plasma 18 023109
[10]	Robinson A P L, Sherlock M 2007 Phys. Plasma 14 083105
[11]	Wang H, Cao L H, Zhao Z Q, Yu M Y, Gu Y Q, He X T 2012 Laser and Particle beams 30 553
[12]	Yu J Q, Jin X L, Zhou W M, Li B, Gu Y Q 2012 Acta Phys. Sin. 225202 (in Chinese) [余金清, 金晓林, 周维民, 李斌, 谷渝秋 2012 61 225202]
[13]	Kar S, Robinson A P L, Carroll D C, Lundh O, Markey K, McKenna P, Norreys P, Zepf M 2009 Phys. Rev. Lett. 102 055001
[14]	Zhou C T, Wang X G, Wu S Z, Cai H B, Wang F, He X T 2010 Appl. Phys. Lett. 97 201502
[15]	Cai H B, Zhu S P, Chen M, Wu S Z, He X T, Mima K 2011 Phys. Rev. E 83 036408
[16]	Wu S Z, Zhou C T, Zhu S P 2010 Phys. Plasma 17 063103
[17]	Zhou W M, Gu Y Q, Hong W, Cao L F, Zhao Z Q, Ding Y K, Zhang B H, Cai H B, Mima K 2010 Laser and Particle beams 28 585
[18]	Wu F J, Zhou W M, Shan L Q, Zhao Z Q, Yu J Q, Zhang B, Yan Y H, Zhang Z M, Gu Y Q 2013 Laser and Particle Beams 31 123
[19]	Yu J Q, Zhou W M, Jin X L, Li B, Zhao Z Q, Cao L F, Dong K G, Liu D X, Fan W, Wei L, Yan Y H, Qian F, Yang Z H, Hong W, Gu Y Q 2012 Acta Phys. Sin. 61 175202 (in Chinese) [余金清, 周维民, 金晓林, 李斌, 赵宗清, 曹磊峰, 董克攻, 刘东晓, 范伟, 魏来, 闫永宏, 钱凤, 杨祖华, 洪伟, 谷渝秋 2012 61 175202]
[20]	Sentoku Y, Mima K, Ruhl H, Toyama Y, Kodama R, Cowan T E 2004 Phys. Plasma 11 3083
[21]	Brunel F 1987 Phys. Rev. Lett. 59 52
[22]	Sentoku Y, Downer M C 2010 High Energy Density Physics 6 268
[23]	Nakamura T, Mima K, Sakagami H, Johzaki T 2007 Phys. Plasma 14 053112

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