Infrared and X-ray simultaneous spectroscopy: a novel conceptual beamline design for time resolved experiments
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- 作者：Augusto Marcelli ; Wei Xu ; Dariush Hampai ; Luca Malfatti ; Plinio Innocenzi ; Ulrich Schade and Ziyu Wu
- 关键词：Synchrotron radiation instrumentation ; X ; ray absorption spectroscopy ; EXAFS ; XANES ; etc. ; Infrared spectrometers ; auxiliary equipment ; and techniques ; Time resolved spectroscopy
- 刊名：Analytical and Bioanalytical Chemistry
- 出版时间：July 2010
- 出版年：2010
- 期刊代码：8_1618-2642
- 类别：en
- 卷：397
- 期：6
- 页码：2095-2108
- 数据来源：sp
摘要
Many physical/chemical processes such as metal–insulator transitions or self-assembly phenomena involve correlated changes of electronic and atomic structure in a wide time range from microseconds to minutes. To investigate these dynamic processes we not only need a highly brilliant photon source in order to achieve high spatial and time resolution but new experimental methods have to be implemented. Here we present a new optical layout for performing simultaneous or concurrent infrared and X-ray measurements. This approach may indeed return unique information for example the interplay between structural changes and chemical processes occurring in the investigated sample. A beamline combining two X-ray and IR beams may really take advantage of the unique synchrotron radiation properties: the high brilliance and the broad spectrum. In this contribution we will describe the conceptual layout and the expected performance of a complex system designed to collect IR and X-ray radiation from the same bending magnet on a third-generation synchrotron radiation ring. If realized, this beamline will enable time-resolved spectroscopy experiments offering new scientific opportunities at the frontiers of science.