Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 81, Issue 4, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.3327816
Keywords
free electron lasers; optical pumping; X-ray lasers
Categories
Funding
- Deutsche Forschungsgemeinschaft [SFB 602, SFB 755, TE347, 1-3]
- Aventis Foundation
- Fonds of the Chemical Industry
- EU [MC-8041]
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In this paper we present a development of a multipurpose vacuum chamber which primal function is to be used in pump/probe experiments with free electron laser (FEL) radiation. The chamber is constructed for serial diffraction and serial spectroscopy allowing a fast exchange of samples during the measurement process. For the fast exchange of samples, liquid jet systems are used. Both applications, utilizing soft x-ray FEL pulses as pump and optical laser pulses as probe and vice versa are documented. Experiments with solid samples as well as the liquid jet samples are presented. When working with liquid jets, a system of automatically refilled liquid traps for capturing liquids has been developed in order to ensure stable vacuum conditions. Differential pumping stages are placed in between the FEL beamline and the experimental chamber so that working pressure in the chamber can be up to four orders of magnitude higher than the pressure in the FEL beamline.
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