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Title: Single-shot mega-electronvolt ultrafast electron diffraction for structure dynamic studies of warm dense matter

Abstract

We have developed a single-shot mega-electronvolt ultrafast-electron-diffraction system to measure the structural dynamics of warm dense matter. The electron probe in this system is featured by a kinetic energy of 3.2 MeV and a total charge of 20 fC, with the FWHM pulse duration and spot size at sample of 350 fs and 120 µm respectively. We demonstrate its unique capability by visualizing the atomic structural changes of warm dense gold formed from a laser-excited 35-nm freestanding single-crystal gold foil. The temporal evolution of the Bragg peak intensity and of the liquid signal during solid-liquid phase transition are quantitatively determined. This experimental capability opens up an exciting opportunity to unravel the atomic dynamics of structural phase transitions in warm dense matter regime

Authors:
 [1];  [1];  [1];  [1];  [1]; ORCiD logo [2]; ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
  2. Univ. of Duisburg-Essen, Duisburg (Germany). Faculty of Physics and Centre for Nanointegration
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1288561
Alternate Identifier(s):
OSTI ID: 1360162
Grant/Contract Number:  
AC02-76SF00515; 100182
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 11; Conference: 21.Topical Conference on High-Temperature Plasma Diagnostics, Madison, Wisconsin, USA, June 2016, Madison, WI (United States), 5-9 Jun 2016; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Gold; Single crystals; electron scattering

Citation Formats

Mo, M. Z., Shen, X., Chen, Z., Li, R. K., Dunning, M., Sokolowski-Tinten, K., Zheng, Q., Weathersby, S. P., Reid, A. H., Coffee, R., Makasyuk, I., Edstrom, S., McCormick, D., Jobe, K., Hast, C., Glenzer, S. H., and Wang, X. Single-shot mega-electronvolt ultrafast electron diffraction for structure dynamic studies of warm dense matter. United States: N. p., 2016. Web. doi:10.1063/1.4960070.
Mo, M. Z., Shen, X., Chen, Z., Li, R. K., Dunning, M., Sokolowski-Tinten, K., Zheng, Q., Weathersby, S. P., Reid, A. H., Coffee, R., Makasyuk, I., Edstrom, S., McCormick, D., Jobe, K., Hast, C., Glenzer, S. H., & Wang, X. Single-shot mega-electronvolt ultrafast electron diffraction for structure dynamic studies of warm dense matter. United States. doi:10.1063/1.4960070.
Mo, M. Z., Shen, X., Chen, Z., Li, R. K., Dunning, M., Sokolowski-Tinten, K., Zheng, Q., Weathersby, S. P., Reid, A. H., Coffee, R., Makasyuk, I., Edstrom, S., McCormick, D., Jobe, K., Hast, C., Glenzer, S. H., and Wang, X. Thu . "Single-shot mega-electronvolt ultrafast electron diffraction for structure dynamic studies of warm dense matter". United States. doi:10.1063/1.4960070. https://www.osti.gov/servlets/purl/1288561.
@article{osti_1288561,
title = {Single-shot mega-electronvolt ultrafast electron diffraction for structure dynamic studies of warm dense matter},
author = {Mo, M. Z. and Shen, X. and Chen, Z. and Li, R. K. and Dunning, M. and Sokolowski-Tinten, K. and Zheng, Q. and Weathersby, S. P. and Reid, A. H. and Coffee, R. and Makasyuk, I. and Edstrom, S. and McCormick, D. and Jobe, K. and Hast, C. and Glenzer, S. H. and Wang, X.},
abstractNote = {We have developed a single-shot mega-electronvolt ultrafast-electron-diffraction system to measure the structural dynamics of warm dense matter. The electron probe in this system is featured by a kinetic energy of 3.2 MeV and a total charge of 20 fC, with the FWHM pulse duration and spot size at sample of 350 fs and 120 µm respectively. We demonstrate its unique capability by visualizing the atomic structural changes of warm dense gold formed from a laser-excited 35-nm freestanding single-crystal gold foil. The temporal evolution of the Bragg peak intensity and of the liquid signal during solid-liquid phase transition are quantitatively determined. This experimental capability opens up an exciting opportunity to unravel the atomic dynamics of structural phase transitions in warm dense matter regime},
doi = {10.1063/1.4960070},
journal = {Review of Scientific Instruments},
number = 11,
volume = 87,
place = {United States},
year = {Thu Aug 04 00:00:00 EDT 2016},
month = {Thu Aug 04 00:00:00 EDT 2016}
}

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