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Time-Evolution of X-Ray Emission Nonuniformity in Line-Shaped Laser Plasmas |
ZHANG Lingqing;HAN Shensheng;XU Zhizhan;ZHANG Zhengquan;WANG Xiaofang;FAN Pinzhong;SONG Xiangyang;QIAN Aidi |
Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, Shanghai 201800 |
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Cite this article: |
ZHANG Lingqing, HAN Shensheng, XU Zhizhan et al 1995 Chin. Phys. Lett. 12 601-604 |
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Abstract 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.
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Keywords:
52.25.Nr
07.85.+n
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Published: 01 October 1995
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