Electron-ion temperature equilibration in warm dense tantalum
Abstract
We present measurements of electron-ion temperature equilibration in proton-heated tantalum, under warm dense matter conditions. Our results agree with theoretical predictions for metals calculated using input data from ab initio simulations. Furthermore, the fast relaxation observed in the experiment contrasts with much longer equilibration times found in proton heated carbon, indicating that the energy flow pathways in warm dense matter are far from being fully understood.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Univ. of Oxford, Oxford (United Kingdom)
- Univ. of Michigan, Ann Arbor, MI (United States)
- AWE Plc., Reading (United Kingdom); Univ. of Warwick, Coventry (United Kingdom)
- AWE Plc., Reading (United Kingdom)
- Univ. of Warwick, Coventry (United Kingdom)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Darmstadt (Germany)
- Max-Planck-Institut fur Physik Komplexer Systeme, Dresden (Germany)
- Imperial College, London (United Kingdom)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1259787
- Report Number(s):
- LLNL-JRNL-686300
Journal ID: ISSN 1574-1818
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- High Energy Density Physics
- Additional Journal Information:
- Journal Volume: 14; Journal Issue: C; Journal ID: ISSN 1574-1818
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; electron-ion equilibration; temperature relaxation; warm dense matter
Citation Formats
Doppner, T, LePape, S., Ma, T., Pak, A., Hartley, N. J., Peters, L., Gregori, G., Belancourt, P., Drake, R. P., Chapman, D. A., Richardson, S., Gericke, D. O., Glenzer, S. H., Khaghani, D., Neumayer, P., Vorberger, J., and White, T. G. Electron-ion temperature equilibration in warm dense tantalum. United States: N. p., 2014.
Web. doi:10.1016/j.hedp.2014.10.003.
Doppner, T, LePape, S., Ma, T., Pak, A., Hartley, N. J., Peters, L., Gregori, G., Belancourt, P., Drake, R. P., Chapman, D. A., Richardson, S., Gericke, D. O., Glenzer, S. H., Khaghani, D., Neumayer, P., Vorberger, J., & White, T. G. Electron-ion temperature equilibration in warm dense tantalum. United States. https://doi.org/10.1016/j.hedp.2014.10.003
Doppner, T, LePape, S., Ma, T., Pak, A., Hartley, N. J., Peters, L., Gregori, G., Belancourt, P., Drake, R. P., Chapman, D. A., Richardson, S., Gericke, D. O., Glenzer, S. H., Khaghani, D., Neumayer, P., Vorberger, J., and White, T. G. Wed .
"Electron-ion temperature equilibration in warm dense tantalum". United States. https://doi.org/10.1016/j.hedp.2014.10.003. https://www.osti.gov/servlets/purl/1259787.
@article{osti_1259787,
title = {Electron-ion temperature equilibration in warm dense tantalum},
author = {Doppner, T and LePape, S. and Ma, T. and Pak, A. and Hartley, N. J. and Peters, L. and Gregori, G. and Belancourt, P. and Drake, R. P. and Chapman, D. A. and Richardson, S. and Gericke, D. O. and Glenzer, S. H. and Khaghani, D. and Neumayer, P. and Vorberger, J. and White, T. G.},
abstractNote = {We present measurements of electron-ion temperature equilibration in proton-heated tantalum, under warm dense matter conditions. Our results agree with theoretical predictions for metals calculated using input data from ab initio simulations. Furthermore, the fast relaxation observed in the experiment contrasts with much longer equilibration times found in proton heated carbon, indicating that the energy flow pathways in warm dense matter are far from being fully understood.},
doi = {10.1016/j.hedp.2014.10.003},
journal = {High Energy Density Physics},
number = C,
volume = 14,
place = {United States},
year = {Wed Nov 05 00:00:00 EST 2014},
month = {Wed Nov 05 00:00:00 EST 2014}
}
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Works referencing / citing this record:
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