A 9 keV electron-impact liquid-gallium-jet x-ray source
A 9 keV electron-impact liquid-gallium-jet x-ray source
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DOI：
10.1063/1.2833838
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发表时间：
2008-01-01
影响因子：
1.6
通讯作者：
Hertz, H. M.
中科院分区：
文献类型：
--
作者：
Otendal, M.;Tuohimaa, T.;Hertz, H. M.
我们展示了一个高亮度的紧凑型9 keV电子碰撞微焦点X射线源的基础上的液体镓喷射阳极。将一个类似于30 W、50 kV的电子枪聚焦到类似于20 m/s、30 μ m直径的液体镓射流阳极上，以产生类似于10 μ m半峰全宽的X射线斑点。峰值光谱亮度>2 x 10（10）光子/（s mm（2）mrad（2）x 0.1% BW）。计算和实验表明，这种亮度增加约三个数量级的潜力，使源适合实验室规模的X射线晶体学和硬X射线显微镜。
We demonstrate a high-brightness compact 9 keV electron-impact microfocus x-ray source based on a liquid-gallium-jet anode. A similar to 30 W, 50 kV electron gun is focused onto the similar to 20 m/s, 30 mu m diameter liquid-gallium-jet anode to produce an similar to 10 mu m full width at half maximum x-ray spot. The peak spectral brightness is >2 x 10(10) photons/(s mm(2) mrad(2) x 0.1% BW). Calculation and experiments show potential for increasing this brightness by approximately three orders of magnitude, making the source suitable for laboratory-scale x-ray crystallography and hard x-ray microscopy.