摘要
利用 2 4 0 0线 /mm或 12 0 0线 /mm的平焦场光栅谱仪、门控宽微带X光单分幅相机及可见光CCD记录系统建立了一套时空分辨平焦场谱仪X光谱诊断系统。介绍了该谱仪系统的结构、工作原理和实验调试方法。利用该谱仪在星光激光装置上进行了时间分辨铝等离子体发射谱线的实验测量 ,获得了清晰的时间分辨铝等离子体谱线。在神光Ⅱ装置上初步观测到了时空分辨铝样品吸收谱 ,谱分辨为 0 .0 2～ 0 .0 5nm。
A time and space resolved flat grating spectrometer is developed. It is composed of a varied line space grating with 2 400 lp/mm or 1 200 lp/mm, a gated MCP framing camera and an optical CCD system. The principle, the construction and adjustment method of the spectrometer are presented. With this spectrometer the time resolved emission spectrum of Al plasma are measured in 'Xing guang' laser facility and the time and space resolved absorption spectrum of Al plasma is observed in 'Shen guang' laser facility respectively. The spectrum resolution is about 0.02～0.05nm.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2002年第5期727-730,共4页
High Power Laser and Particle Beams
基金
国家 8 63惯性约束聚变领域 80 4 3专题资助课题
国家自然科学基金 (1 0 1 750 56)资助课题
关键词
平焦场光栅谱仪
X光吸收谱
诊断技术
时空分辨谱
X ray absorption spectrum
diagnostic technique
time and space resolved spectrum
