Mg微管靶喷口电子密度及X射线谱的时间分辨特性  

FEATURES OF ELECTRON DENSITY AND TIME-RESOLVED X-RAY SPECTRA FROM LATERAL JET NOZZLE OF Mg MICROTUBE TARGET

作　　者：章辉煌 林尊琪[1] 何兴法[1] 张正泉[1] 王笑琴[1] 逯其荣 谷忠民[1] 庄亦飞[1] 崔季秀[1] 余文炎[1] 李家明[2] 龚美霞[3] 张小秋[3] 雷志远[3] 杨斌洲[3] 赵卫[3] 

机构地区：[1]中国科学院上海光学精密机械研究所 [2]中国科学院物理研究所 [3]中国科学院西安光学精密机械研究所

出　　处：《物理学报》1989年第11期1838-1844,共7页Acta Physica Sinica

基　　金：国家自然科学基金

摘　　要：1.06μm激光以3.5×10^(13)W/cm^2管壁辐照强度注入带侧向喷口Mg微管靶管内。利用X射线条纹相机测量Mg^(10+)和Mg^(11+)离子沿侧喷方向发射X射线谱随时间变化过程,X射线时间分辨谱结果表明,三体再复合过程是实现Mg^(10+)离子激发态1s4p和1s3p能级间粒子数反转的主要机制。用2660A紫外激光探针探测侧向喷口处等离子体电子密度,其密度值与用光谱分析获取的一致。The 1.06 μm laser with irradiance 3.5×10^(13)W/cm^2 was injected into Mg microtube target with lateral jet nozzle. The temporal evolution of X-ray spectra emitted from Mg^(10+) and Mg^(11+) ion along the side-blow direction was recorded by using X-ray streak camera. The results demonstrate that three-body recombination is the main mechanism to realize the strong population inversion between the excited state energy levels Is4p and Is3p of Mg^(10+) ion. The electron density in lateral jet nozzle measured by a 2660A UV laser probe coincides with density results deduced from the spectrum information.

关 键 词：Mg微管靶 电子密度 X射线谱 

分 类 号：O434.1[机械工程—光学工程]