A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar

Ping Y.; Hicks D.G.; Yaakobi B.; Coppari F.

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A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar

机译：1 Mbar以上动态压缩材料的X射线吸收精细结构研究平台

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A platform consisting of a multi-shock drive and an implosion backlighter has been developed for x-ray absorption fine structure (XAFS) measurements on materials compressed to multi-Mbar pressures. The experimental setup, target design, and backlighter characteristics are presented. Extended XAFS (EXAFS) measurements for various materials have been demonstrated. A quintuple-crystal design is described to enhance the efficiency of the x-ray spectrometer, enabling observation of very weak EXAFS signals in a single shot.

机译：已经开发了一个由多冲击驱动器和内爆背光灯组成的平台，用于在压缩至多Mbar压力的材料上进行X射线吸收精细结构（XAFS）测量。介绍了实验设置，目标设计和背光源特性。已经证明了对各种材料的扩展XAFS（EXAFS）测量。描述了一种五重晶体设计，可以提高X射线光谱仪的效率，从而能够在一次拍摄中观察到非常弱的EXAFS信号。

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《Review of Scientific Instruments》 |2013年第12期|1-5|共5页
作者
Ping Y.; Hicks D.G.; Yaakobi B.; Coppari F.;
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Lawrence Livermore National Laboratory, Livermore, California 94550, USA|c|;

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A platform for x-ray absorption fine structure study of dynamically compressed materials above 1 Mbar

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