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Measurement of Preheat Due to Nonlocal Electron Transport in Warm Dense Matter

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [3];  [3];  [3];  [3];  [3];  [1]
  1. Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic). Inst. of Physics
  2. Academy of Sciences of the Czech Republic (ASCR), Prague (Czech Republic). Inst. of Physics; Univ. of Bordeaux, CNRS-CEA, UMR 5107 (France). Intensive Lasers Center and Applications (CELIA); Czech Technical Univ. in Prague (Czech Republic). Faculty of Nuclear Sciences and Physical Engineering
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
+ Show Author Affiliations
This work presents a novel approach to study electron transport in warm dense matter. It also includes the first x-ray Thomson scattering (XRTS) measurement from low-density CH foams compressed by a strong laser-driven shock at the OMEGA laser facility. The XRTS measurement is combined with velocity interferometry (VISAR) and optical pyrometry (SOP) providing a robust measurement of thermodynamic conditions in the shock. Evidence of significant preheat contributing to elevated temperatures reaching 17.5–35 eV in shocked CH foam is measured by XRTS. These measurements are complemented by abnormally high shock velocities observed by VISAR and early emission seen by SOP. These results are compared to radiation hydrodynamics simulations that include first-principles treatment of nonlocal electron transport in warm dense matter with excellent agreement. Additional simulations confirm that the x-ray contribution to this preheat is negligible.
Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
European Regional Development Fund (ERDF); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1438355
Alternate ID(s):
OSTI ID: 1416477
Report Number(s):
LA-UR--17-22830
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 120; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (5)

Thermomechanical response of thickly tamped targets and diamond anvil cells under pulsed hard x-ray irradiation journal May 2020
The effect of pre-plasma formation under nonlocal transport conditions for ultra-relativistic laser-plasma interaction journal March 2018
Transport of moderately relativistic electron beam in dense plasma journal June 2019
Heat-release equation of state and thermal conductivity of warm dense carbon by proton differential heating journal October 2019
Thermomechanical response of thickly tamped targets and diamond anvil cells under pulsed hard x-ray irradiation text January 2018

Figures / Tables (5)

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Fast Electron Transport
OMEGA
Preheat
SOP
VISAR
Warm Dense Matter
XRTS
fast particle effects in plasmas
high-energy-density plasmas
intertial confinement fusion
plasma transport