A liquid flow cell to study the electronic structure of liquids with soft X-rays

被引:45
作者
Fuchs, Oliver [1 ]
Maier, Florian [1 ]
Weinhardt, Lothar [2 ]
Weigand, Markus [1 ]
Blum, Monika [1 ]
Zharnikovc, Michael [3 ]
Denlinger, Jonathan [4 ]
Grunze, Michael [3 ]
Heske, Clemens [2 ]
Umbach, Eberhard [1 ,5 ]
机构
[1] Univ Wurzburg, D-97074 Wurzburg, Germany
[2] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA
[3] Univ Heidelberg, Angewandte Phys Chem, D-69120 Heidelberg, Germany
[4] Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA
[5] Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany
关键词
liquid cell; water; soft X-ray spectroscopy; X-ray absorption; X-ray emission;
D O I
10.1016/j.nima.2007.10.029
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We describe the design of a temperature-controlled flow-through liquid cell dedicated to the study of liquids with soft X-rays. The cell can be operated with internal ambient pressure and is mounted on a standard vacuum manipulator, making it compatible to the ultra-high vacuum environment required in synchrotron beamlines. The liquid is separated from the vacuum by a thin membrane, allowing the use of soft X-ray photon-in-photon-out techniques such as X-ray emission and fluorescence-yield X-ray absorption spectroscopy to study the electronic structure of liquids and liquid-solid interfaces. Special care was taken for a rapid and effective flow of the liquid inside the cell in order to minimize local heating and beam damage effects. To illustrate the capabilities, oxygen K X-ray emission spectra of D2O and H2O are presented and briefly discussed together with possible problems that may arise from X-ray-induced oxide formation at the membrane-liquid interface. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:172 / 177
页数:6
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