Ultrashort 1-kHz laser plasma hard x-ray source
Ultrashort 1-kHz laser plasma hard x-ray source
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DOI：
10.1364/ol.27.000866
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发表时间：
2002-05-15
期刊：
影响因子：
3.6
通讯作者：
Faubel, M
中科院分区：
文献类型：
--
作者：
Korn, G;Thoss, A;Faubel, M
我们实现了一个连续的，稳定的，超短脉冲硬X射线点源聚焦1.8瓦，1千赫，50飞秒激光脉冲到一个新的，30微米直径，高速，液态金属镓射流。这种目标几何形状避免了固体目标的大多数碎片问题，并提供了近4pi的照明。在由4至14 keV的宽连续谱和9.25和10.26 keV的强K-α和K-β发射线组成的双分量光谱中产生5 × 10（8）光子/s的光子通量。该源将在时间分辨X射线衍射研究和其他应用中得到广泛应用。(C)2002年美国光学学会。
We achieved a continuous, stable, ultrashort pulse hard x-ray point source by focusing 1.8-W, 1-kHz, 50-fs laser pulses onto a novel, 30-mum-diameter, high-velocity, liquid-metal gallium jet. This target geometry avoids most of the debris problems of solid targets and provides nearly 4pi illumination. Photon fluxes of 5 X 10(8) photons/s are generated in a two-component spectrum consisting of a broad continuum from 4 to 14 keV and strong K-alpha and K-beta emission lines at 9.25 and 10.26 keV. This source will find wide use in time-resolved x-ray diffraction studies and other applications. (C) 2002 Optical Society of America.