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DOE OSTI · 1843433

Tunable x-ray free electron laser multi-pulses with nanosecond separation

Decker, Franz-Josef·Bane, Karl L.·Colocho, William·Gilevich, Sasha·Marinelli, Agostino·Sheppard, John C.·Turner, James L.·Turner, Joshua J.·Vetter, Sharon L.·Halavanau, Aliaksei·Pellegrini, Claudio·Lutman, Alberto A.
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Abstract

X-ray Free Electron Lasers provide femtosecond x-ray pulses with narrow bandwidth and unprecedented peak brightness. Special modes of operation have been developed to deliver double pulses for x-ray pump, x-ray probe experiments. However, the longest delay between the two pulses achieved with existing single bucket methods is less than 1 picosecond, thus preventing the exploration of longer time-scale dynamics. We present a novel two-bucket scheme covering delays from 350 picoseconds to hundreds of nanoseconds in discrete steps of 350 picoseconds. Performance for each pulse can be similar to the one in a single pulse operation. The method has been experimentally tested with the Linac Coherent Light Source (LCLS-I) and the copper linac with LCLS-II hard x-ray undulators.

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47 OTHER INSTRUMENTATIONLEDscore processeslaserslight sourcesoptical techniquesphotonicstechniques and instrumentationx-ray crystallography

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BibTeXRIS

Decker, Franz-Josef, Bane, Karl L., Colocho, William, Gilevich, Sasha, Marinelli, Agostino, Sheppard, John C., Turner, James L., Turner, Joshua J., Vetter, Sharon L., Halavanau, Aliaksei, Pellegrini, Claudio, Lutman, Alberto A.. 2022-02-28. Tunable x-ray free electron laser multi-pulses with nanosecond separation. https://doi.org/10.1038/s41598-022-06754-y

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