Time-Evolution of X-Ray Emission Nonuniformity in Line-Shaped Laser Plasmas  

作　　者：ZHANG Lingqing HAN Shensheng XU Zhizhan ZHANG Zhengquan WANG Xiaofang FAN Pinzhong SONG Xiangyang QIAN Aidi 

机构地区：[1]Shanghai Institute of Optics and Fine Mechanics,Academia Sinica,Shanghai 201800

出　　处：《Chinese Physics Letters》1995年第10期601-604,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural High Technology Program.

摘　　要：The spatially and time resolved 2D images of x-ray emission of line-shaped Ti laser plasmas have been obtained with a pinhole transmission grating spectrometer coupled with a x-ray streak camera.The x-ray emission nonuniformity of the plasma is quantitatively analyzed using a perturbation spectrum analysis method.The results show that the nonuniformity has a minimum value at a time corresponding to the peak time of the pumping laser pulse,and increases after that.A brief discussion on the nonuniformity mechanism has also been presented.

关 键 词：PUMPING NONUNIFORM spatially 

分 类 号：TN2[电子电信—物理电子学]