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

ISSN号：1674-1056
期刊名称：《中国物理B：英文版》
时间：0
分类：TN241[电子电信—物理电子学] O571.44[理学—粒子物理与原子核物理;理学—物理]
作者机构：[1]Laser Fusion Research Centre, China Academy of Engineering Physics, Mianyang 621900, China, [2]National Key Laboratory of Plasma Physics, Mianyang 621900, China
相关基金：Project supported by the National Natural Science Foundation of China （Grant No. 10975121） and the Foundation of National Key Laboratory of Laser Plasma.Acknowledgment The authors are grateful to Prof. Z. L. Liu and Prof. Q. H. Zhu for their technical assistance, also to Dr. Wei Hong for his fruitful discussion.

作者：刘红杰[1,2], 谷渝秋[1,2], 周维民[1,2], 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], 张保汉[1,2], 郑志坚[1,2]

关键词：氘团簇, 激光场, 集群, 离子能谱, 气体射流, 生长, 超短, 锥形喷嘴, deuterium cluster, Rayleigh scattering, Coulomb explosion, ion energy spectrum

中文摘要：

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 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.

英文摘要：

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 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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