【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)×1024cm-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。更多还原

【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.更多还原