PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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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 |
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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 SR 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.
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Received: 13 October 2010
Revised: 11 January 2011
Accepted manuscript online:
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PACS:
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52.38.Kd
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(Laser-plasma acceleration of electrons and ions)
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52.57.-z
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(Laser inertial confinement)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10975121) and the Foundation of National
Key Laboratory of Laser Plasma. |
Cite this article:
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 2011 Chin. Phys. B 20 065203
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