Marcelli, A.; Xu, W.; Hampai, D.; Malfatti, L.; Innocenzi, P.; Schade, U.; Wu, Z.: Infrared and X-ray simultaneous spectroscopy: a novel conceptual beamline design for time resolved experiments. Analytical and Bioanalytical Chemistry 397 (2010), p. 2095-2108
10.1007/s00216-010-3745-1
Abstract:
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.