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20TW亚皮秒激光系统(SPS)与中子产生实验研究

20 TW Sub-picosecond Laser System (SPS) Applied for the Neutron Experiment

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【作者】 谢兴龙朱健强刘凤翘杨镜新管富义黄关龙戴亚平李美荣薛绍林高奇薛志玲邵敏庄亦飞韩爱妹彭增云张伟清张明科诸彩龙林尊琪郑志坚丁永坤陈家斌王世绩顾援王伟王瑞荣吴江

【Author】 XIE Xing-long 1, ZHU Jian-qiang 1, LIU Feng-qiao 2, YANG Jing-xin 1, GUAN Fu-yi 1, HUANG Guan-long 1, DAI Ya-ping 1, LI Mei-rong 1, XUE Shao-lin 1, GAO Qi 1, XUE Zhi-ling 1, SHAO Min 1, ZHUANG Yi-fei 1, HAN Ai-mei 1, PENG Zeng-yun 1, ZHANG Wei-qing 1, ZHANG Ming-ke 1, ZHU Cai-long 1, LIN Zun-qi 1, ZHENG Zhi-jian 3, DING Yong-kun 3, CHEN Jia-bin 3, WANG Shi-ji 4, GU Yuan 4, WANG Wei 4, WANG Rui-rong 4, WU Jiang 4 National Laboratory on High Power Laser and Physics, 1Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, 2Shanghai Institute of Lasers and Plasma, Shanghai 201800, China 3Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang, Sichuan 621900, China 4Shanghai Institute of Laser Plasma, Shanghai 201800, China

【机构】 中国科学院上海光学精密机械研究所高功率激光物理国家实验室上海激光等离子体研究所高功率激光物理国家实验室中国工程物理研究院激光聚变研究中心上海激光等离子体研究所上海激光等离子体研究所 上海201800上海201800四川绵阳621900上海201800

【摘要】 利用啁啾脉冲放大技术 ,建成了一台基于钕玻璃放大器 10 5 3nm波长的亚皮秒超短脉冲激光系统 (SPS)。系统的输出峰值功率大于 2 0TW ,靶面最高能量可达 16J ,采用离轴抛物面反射镜聚焦 ,在靶面上获得 2× 10 18W /cm2 的激光功率密度 ,以此激光脉冲轰击氘化聚苯乙烯平面靶 ,获得单次发射最高 2 4× 10 4个中子产额。对中子产生的机理进行了相关的讨论

【Abstract】 A Nd∶doped-glass-based sub-picosecond laser system with the maximum peak power of greater than 20 tara watts and the energy on target surface of 16 J is accomplished by using the chirped laser pulse amplification technology. While the laser pulse is focused by an off-axis parabolic mirror, the power density on target surface of approximately 2×10 18 W/cm 2 is acquired. In the performed neutron experiment, a C 8D 8 plate target is placed on the focal spot of the off-axis parabolic mirror. The maximum neutron yield for a single shot reaches 2.4×10 4. Still some other related problems are discussed.

【基金】 国家高技术惯性约束聚变主题 (编号 :2 0 0 2AA84 2 10 0 )资助项目
  • 【文献出处】 中国激光 ,Chinese Journal of Lasers , 编辑部邮箱 ,2003年10期
  • 【分类号】O571.44
  • 【被引频次】11
  • 【下载频次】83
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