Growth of deuterium clusters in a gas jet and ion energy spectrum of clusters in ultra-short laser field

doi:10.1088/1674-1056/20/6/065203

中国物理B ›› 2011, Vol. 20 ›› Issue (6): 65203-065203.doi: 10.1088/1674-1056/20/6/065203

Growth of deuterium clusters in a gas jet and ion energy spectrum of clusters in ultra-short laser field

高宇林¹, 单连强¹, 朱斌¹, 吴玉迟¹, 焦春晔¹, 李芳¹, 曹磊峰¹, 刘红杰², 谷渝秋², 周维民², 张保汉², 郑志坚²

(1)Laser Fusion Research Centre, China Academy of Engineering Physics, Mianyang 621900, China; (2)Laser Fusion Research Centre, China Academy of Engineering Physics, Mianyang 621900, China;National Key Laboratory of Plasma Physics, Mianyang 621900, China

收稿日期:2010-10-13 修回日期:2011-01-11 出版日期:2011-06-15 发布日期:2011-06-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10975121) and the Foundation of National Key Laboratory of Laser Plasma.

Growth of deuterium clusters in a gas jet and ion energy spectrum of clusters in ultra-short laser field

Liu Hong-Jie (刘红杰)^ab, Gu Yu-Qiu (谷渝秋)^ab, Zhou Wei-Min (周维民)^ab, Gao Yu-Lin (高宇林)^a, Shan Lian-Qiang (单连强)^a, Zhu Bin (朱斌)^a, Wu Yu-Chi (吴玉迟)^a, Jiao Chun-Ye (焦春晔)^a, Li Fang (李芳)^a, Cao Lei-Feng (曹磊峰)^a, Zhang Bao-Han (张保汉)^ab, Zheng Zhi-Jian (郑志坚)^ab

^a Laser Fusion Research Centre, China Academy of Engineering Physics, Mianyang 621900, China; ^b National Key Laboratory of Plasma Physics, Mianyang 621900, China

Received:2010-10-13 Revised:2011-01-11 Online:2011-06-15 Published:2011-06-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10975121) and the Foundation of National Key Laboratory of Laser Plasma.

摘要/Abstract

摘要： Large deuterium clusters are generated using a cryogenic pulse valve with a cone nozzle (21 mm long, 4° open angle). Rayleigh scattering experiment is carried out to obtain the scaling relation between scattering signal S_R and backing pressure P₀. A method using the Coulomb explosion model is proposed to verify that the clusters continue to grow after their leaving the nozzle. Our experiments suggest a tentatively optimized position for laser cluster interaction.

关键词: deuterium cluster, Rayleigh scattering, Coulomb explosion, ion energy spectrum

Abstract: Large deuterium clusters are generated using a cryogenic pulse valve with a cone nozzle (21 mm long, 4° open angle). Rayleigh scattering experiment is carried out to obtain the scaling relation between scattering signal S_R and backing pressure P₀. A method using the Coulomb explosion model is proposed to verify that the clusters continue to grow after their leaving the nozzle. Our experiments suggest a tentatively optimized position for laser cluster interaction.

Key words: deuterium cluster, Rayleigh scattering, Coulomb explosion, ion energy spectrum

中图分类号: (Laser-plasma acceleration of electrons and ions)

52.38.Kd

52.57.-z (Laser inertial confinement)

刘红杰, 谷渝秋, 周维民, 高宇林, 单连强, 朱斌, 吴玉迟, 焦春晔, 李芳, 曹磊峰, 张保汉, 郑志坚. Growth of deuterium clusters in a gas jet and ion energy spectrum of clusters in ultra-short laser field[J]. 中国物理B, 2011, 20(6): 65203-065203.

Liu Hong-Jie (刘红杰), Gu Yu-Qiu (谷渝秋), Zhou Wei-Min (周维民), Gao Yu-Lin (高宇林), Shan Lian-Qiang (单连强), Zhu Bin (朱斌), Wu Yu-Chi (吴玉迟), Jiao Chun-Ye (焦春晔), Li Fang (李芳), Cao Lei-Feng (曹磊峰), Zhang Bao-Han (张保汉), Zheng Zhi-Jian (郑志坚). Growth of deuterium clusters in a gas jet and ion energy spectrum of clusters in ultra-short laser field[J]. Chin. Phys. B, 2011, 20(6): 65203-065203.

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Growth of deuterium clusters in a gas jet and ion energy spectrum of clusters in ultra-short laser field

Growth of deuterium clusters in a gas jet and ion energy spectrum of clusters in ultra-short laser field

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