Suppression of Bragg reflection glitches of a single-crystal diamond anvil cell by a polycapillary half-lens in high-pressure XAFS spectroscopy
Chen DL(陈栋梁); Dong JC(董俊才); Zhang XL(张晓丽); Chen, DL; Dong, JC; Zhang, XL; Quan, PY; Liang, YX; Hu, TD; Liu, J; Wu, X; Zhang, Q; Li, YD; Quan PY(权培玉); Liang YX(梁雅翔); Hu TD(胡天斗); Liu J(刘景)
刊名JOURNAL OF SYNCHROTRON RADIATION
2013
卷号20期号:2页码:243-248
关键词high-pressure m-XAFS DAC polycapillary half-lens optics Ge K-edge
学科分类Instruments & Instrumentation; Optics; Physics
DOI10.1107/S0909049513000265
英文摘要In combination with a single-crystal diamond anvil cell (DAC), a polycapillary half-lens (PHL) re-focusing optics has been used to perform high-pressure extended X-ray absorption fine-structure measurements. It is found that a large divergent X-ray beam induced by the PHL leads the Bragg glitches from single-crystal diamond to be broadened significantly and the intensity of the glitches to be reduced strongly so that most of the DAC glitches are efficiently suppressed. The remaining glitches can be easily removed by rotating the DAC by a few degrees with respect to the X-ray beam. Accurate X-ray absorption fine-structure (XAFS) spectra of polycrystalline Ge powder with a glitch-free energy range from -200 to 800 eV relative to the Ge absorption edge are obtained using this method at high pressures up to 23.7 GPa, demonstrating the capability of PHL optics in eliminating the DAC glitches for high-pressure XAFS experiments. This approach brings new possibilities to perform XAFS measurements using a DAC up to ultrahigh pressures.
收录类别SCI
WOS记录号WOS:000314929700006
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223907
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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Chen DL,Dong JC,Zhang XL,et al. Suppression of Bragg reflection glitches of a single-crystal diamond anvil cell by a polycapillary half-lens in high-pressure XAFS spectroscopy[J]. JOURNAL OF SYNCHROTRON RADIATION,2013,20(2):243-248.
APA 陈栋梁.,董俊才.,张晓丽.,Chen, DL.,Dong, JC.,...&刘景.(2013).Suppression of Bragg reflection glitches of a single-crystal diamond anvil cell by a polycapillary half-lens in high-pressure XAFS spectroscopy.JOURNAL OF SYNCHROTRON RADIATION,20(2),243-248.
MLA 陈栋梁,et al."Suppression of Bragg reflection glitches of a single-crystal diamond anvil cell by a polycapillary half-lens in high-pressure XAFS spectroscopy".JOURNAL OF SYNCHROTRON RADIATION 20.2(2013):243-248.
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