| 5—200?范围激光等离子体X射线辐射特性研究 |
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| 引用本文： | 王晓方,徐至展,陈时胜,李跃林,钱爱娣.5—200?范围激光等离子体X射线辐射特性研究[J].物理学报,1990,39(6):80-84. |
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| 作者姓名： | 王晓方 徐至展 陈时胜 李跃林 钱爱娣 |
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| 作者单位： | 中国科学院上海光学精密机械研究所,上海,201800 |
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| 摘 要： | 利用带有针孔的透射式光栅光谱仪研究了激光等离子体X射线辐射的原子序数依赖性和激光功率密度对辐射的影响。得到了波长为1.06μm,平均功率密度为5×1014W/cm2的激光辐照条件下Z=6(C)到Z=79(Au)的不同原子序数激光等离子体X射线发射光谱。点聚焦和线聚焦激光照射方式下Al,Au等离子体X射线发射的对照实验结果表明,激光功率密度对低Z等离子体X射线发射的影响比对高Z的影响更明显。
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| 收稿时间： | 1989-07-27 |
LASER PLASMA X-RAY EMISSION FROM 5? TO 200? |
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| WANG XIAO-FANG,A. PACHTMAN,XU ZHI-ZHAN,CHEN SHI-SHENG,LI YAO-LING and QIAN AI-DI.LASER PLASMA X-RAY EMISSION FROM 5? TO 200?[J].Acta Physica Sinica,1990,39(6):80-84. |
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| Authors: | WANG XIAO-FANG A PACHTMAN XU ZHI-ZHAN CHEN SHI-SHENG LI YAO-LING and QIAN AI-DI |
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| Abstract: | This paper presents the studies of the dependence of soft X-ray emission on atomic-number and laser intensities by using a new diagnostic tool, pinhole transmission grating spectrograph (PTGS). Plasma X-ray spectra of various elements from Z = 6(C) to Z = 79(Au) produced by a laser beam with an average power density 5×l014W/cm2 reveal the strong dependence of X-ray emission on atomic number Z. Comparative experiments of Al or Au plasma X-ray emis-sion under both spot and line focused laser illumination show that changes of the laser intensity have more remarkable influence on low Z plasma X-ray emission than that on high Z. |
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