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激光间接驱动内爆靶丸的X光诊断
引用本文:张继彦,杨国洪,缪文勇,丁耀南. 激光间接驱动内爆靶丸的X光诊断[J]. 强激光与粒子束, 2006, 18(6): 939-943
作者姓名:张继彦  杨国洪  缪文勇  丁耀南
作者单位:中国工程物理研究院,激光聚变研究中心,四川,绵阳,621900;中国工程物理研究院,激光聚变研究中心,四川,绵阳,621900;中国工程物理研究院,激光聚变研究中心,四川,绵阳,621900;中国工程物理研究院,激光聚变研究中心,四川,绵阳,621900
基金项目:国家高技术研究发展计划(863计划)
摘    要: 报道了神光Ⅱ激光聚变实验中内爆燃料靶丸区电子温度、电子密度以及燃料面密度的X光诊断结果。在电子温度诊断中,采用X射线光谱学方法,根据聚变靶丸燃料区的Ar示踪元素的Ly-β线与He-β线的强度比推断出靶丸燃料区电子温度为(950±100) eV;在电子密度诊断中,利用靶丸燃料区Ar元素的He-β线Stark展宽确定聚变靶丸芯部的电子密度为(0.9±0.2)×1024 cm-3;在燃料区面密度诊断中,利用X光单能照相技术获得了内爆靶丸的燃料面密度为(3.2±0.5) mg/cm2

关 键 词:激光聚变  X光诊断  内爆靶丸  电子温度  电子密度  燃料面密度
文章编号:1001-4322(2006)06-0939-05
收稿时间:2006-04-15
修稿时间:2006-05-08

X-ray diagnostics of laser indirect-driven implosion pellet
ZHANG Ji-yan,YANG Guo-hong,MIAO Wen-yong,DING Yao-nan. X-ray diagnostics of laser indirect-driven implosion pellet[J]. High Power Laser and Particle Beams, 2006, 18(6): 939-943
Authors:ZHANG Ji-yan  YANG Guo-hong  MIAO Wen-yong  DING Yao-nan
Affiliation:ZHANG Ji-yan, YANG Guo-hong, MIAO Wen-yong, DING Yao-nan
Abstract:In this paper, the electron temperature, electron density and areal density of imploded fuel pellet driven by SGⅡ laser were diagnosed through X-ray method. The electron temperature deduced from intensity ratio of Ly-beta line and He-beta line of Ar tracer doped in DD fuel was determined to be(950±100) eV. The electron density which was deduced from Stark broadening of He-beta line was determined to be (0.9±0.2)×1024cm-3. And the fuel areal density, which was deduced from X-ray monochromatic imaging of compressed fuel, was determined to be (3.2±0.5) mg/cm2.
Keywords:Laser fusion  X-ray diagnostics  Implosion pellet  Electron temperature  Electron density  Fuel areal density  
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