Double-shot MeV electron diffraction and microscopy

Musumeci, P.; Cesar, D.; Maxson, J.

doi:10.1063/1.4983390

Title: Double-shot MeV electron diffraction and microscopy

Journal Article · Fri May 19 00:00:00 EDT 2017 · Structural Dynamics

DOI:https://doi.org/10.1063/1.4983390· OSTI ID:1374551

Musumeci, P. ^[1]; Cesar, D. ^[1]; Maxson, J. ^[1]

Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy

Here in this paper, we study by numerical simulations a time-resolved MeV electron scattering mode where two consecutive electron pulses are used to capture the evolution of a material sample on 10 ps time scales. The two electron pulses are generated by illuminating a photocathode in a radiofrequency photogun by two short laser pulses with adjustable delay. A streak camera/deflecting cavity is used after the sample to project the two electron bunches on two well separated regions of the detector screen. By using sufficiently short pulses, the 2D spatial information from each snapshot can be preserved. This “double-shot” technique enables the efficient capture of irreversible dynamics in both diffraction and imaging modes. Finally, in this work, we demonstrate both modes in start-to-end simulations of the UCLA Pegasus MeV microscope column.

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Research Organization:: Radiabeam Technologies, LLC, Santa Monica, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC); National Science Foundation (NSF)

Grant/Contract Number:: SC0013115; DMR 1548924

OSTI ID:: 1374551

Journal Information:: Structural Dynamics, Vol. 4, Issue 4; ISSN 2329-7778

Publisher:: American Crystallographic Association/AIPCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 3 works

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Cited By (2)

Femtosecond phase-transition in hard x-ray excited bismuth Makita, M.; Vartiainen, I.; Mohacsi, I. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2019-00936	text	January 2019
Femtosecond phase-transition in hard x-ray excited bismuth Makita, M.; Vartiainen, I.; Mohacsi, I. Scientific Reports, Vol. 9, Issue 1 https://doi.org/10.1038/s41598-018-36216-3	journal	January 2019

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