Electron-ion temperature equilibration in warm dense tantalum

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.

doi:10.1016/j.hedp.2014.10.003

Title: Electron-ion temperature equilibration in warm dense tantalum

Journal Article · Wed Nov 05 00:00:00 EST 2014 · High Energy Density Physics

DOI:https://doi.org/10.1016/j.hedp.2014.10.003· OSTI ID:1259787

Doppner, T ^[1]; LePape, S. ^[1]; Ma, T. ^[1]; Pak, A. ^[1]; Hartley, N. J. ^[2]; Peters, L. ^[2]; Gregori, G. ^[2]; Belancourt, P. ^[3]; Drake, R. P. ^[3]; Chapman, D. A. ^[4]; Richardson, S. ^[5]; Gericke, D. O. ^[6]; Glenzer, S. H. ^[7]; Khaghani, D. ^[8]; Neumayer, P. ^[8]; Vorberger, J. ^[9]; White, T. G. ^[10]

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)

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.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1259787

Report Number(s):: LLNL-JRNL-686300

Journal Information:: High Energy Density Physics, Vol. 14, Issue C; ISSN 1574-1818

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 16 works

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Cited By (3)

Dynamical structure factor of strongly coupled ions in a dense quantum plasma Moldabekov, Zh. A.; Kählert, H.; Dornheim, T. Physical Review E, Vol. 99, Issue 5 https://doi.org/10.1103/physreve.99.053203	journal	May 2019
Dynamical structure factor of strongly coupled ions in a dense quantum plasma Moldabekov, Zh. A.; Kählert, H.; Dornheim, T. arXiv https://doi.org/10.48550/arxiv.1903.11811	text	January 2019
The uniform electron gas at warm dense matter conditions Dornheim, Tobias; Groth, Simon; Bonitz, Michael Physics Reports, Vol. 744 https://doi.org/10.1016/j.physrep.2018.04.001	journal	May 2018

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