一种用于在自由电子激光光源下对液体进行共振非弹性软X射线散射的装置。

A setup for resonant inelastic soft x-ray scattering on liquids at free electron laser light sources.

作者信息

Kunnus Kristjan, Rajkovic Ivan, Schreck Simon, Quevedo Wilson, Eckert Sebastian, Beye Martin, Suljoti Edlira, Weniger Christian, Kalus Christian, Grübel Sebastian, Scholz Mirko, Nordlund Dennis, Zhang Wenkai, Hartsock Robert W, Gaffney Kelly J, Schlotter William F, Turner Joshua J, Kennedy Brian, Hennies Franz, Techert Simone, Wernet Philippe, Föhlisch Alexander

机构信息

Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany.

出版信息

Rev Sci Instrum. 2012 Dec;83(12):123109. doi: 10.1063/1.4772685.

DOI:10.1063/1.4772685

PMID:23277974

Abstract

We present a flexible and compact experimental setup that combines an in vacuum liquid jet with an x-ray emission spectrometer to enable static and femtosecond time-resolved resonant inelastic soft x-ray scattering (RIXS) measurements from liquids at free electron laser (FEL) light sources. We demonstrate the feasibility of this type of experiments with the measurements performed at the Linac Coherent Light Source FEL facility. At the FEL we observed changes in the RIXS spectra at high peak fluences which currently sets a limit to maximum attainable count rate at FELs. The setup presented here opens up new possibilities to study the structure and dynamics in liquids.

摘要

我们展示了一种灵活且紧凑的实验装置，该装置将真空液体射流与X射线发射光谱仪相结合，以实现对自由电子激光（FEL）光源下液体的静态和飞秒时间分辨共振非弹性软X射线散射（RIXS）测量。我们通过在直线加速器相干光源FEL设施上进行的测量证明了这类实验的可行性。在FEL上，我们观察到在高峰值通量下RIXS光谱的变化，这目前限制了FEL可达到的最大计数率。这里展示的装置为研究液体中的结构和动力学开辟了新的可能性。