A new concept for temporal gating of synchrotron X-ray pulses

A new concept for temporal gating of synchrotron X-ray pulses based on laser-induced thermal transient gratings is presented. First experimental tests of the concept yield a diffraction efficiency of 0.18%; however, the calculations indicate a theoretical efficiency and contrast of >30% and 10(−5...

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Detalles Bibliográficos
Autores principales: Schmidt, D., Bauer, R., Chung, S., Novikov, D., Sander, M., Pudell, J.-E., Herzog, M., Pfuetzenreuter, D., Schwarzkopf, J., Chernikov, R., Gaal, P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2021
Materias:
Research Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7941288/
https://www.ncbi.nlm.nih.gov/pubmed/33650548
http://dx.doi.org/10.1107/S1600577521000151
Descripción
Sumario:A new concept for temporal gating of synchrotron X-ray pulses based on laser-induced thermal transient gratings is presented. First experimental tests of the concept yield a diffraction efficiency of 0.18%; however, the calculations indicate a theoretical efficiency and contrast of >30% and 10(−5), respectively. The full efficiency of the pulse picker has not been reached yet due to a long-range thermal deformation of the sample after absorption of the excitation laser. This method can be implemented in a broad spectral range (100 eV to 20 keV) and is only minimally invasive to an existing setup.

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