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Title: Potential of mean force for electrical conductivity of dense plasmas

Abstract

The electrical conductivity in dense plasmas can be calculated with the relaxation-time approximation provided that the interaction potential between the scattering electron and the ion is known. To date there has been considerable uncertainty as to the best way to define this interaction potential so that it correctly includes the effects of ionic structure, screening by electrons and partial ionization. The current approximations lead to significantly different results with varying levels of agreement when compared to bench-mark calculations and experiments. Here, we present a new way to define this potential, drawing on ideas from classical fluid theory to define a potential of mean force. This new potential results in significantly improved agreement with experiments and bench-mark calculations, and includes all the aforementioned physics self-consistently.

Authors:
ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1396133
Alternate Identifier(s):
OSTI ID: 1549230
Report Number(s):
[LA-UR-17-26365]
[Journal ID: ISSN 1574-1818]
Grant/Contract Number:  
[AC52-06NA25396]
Resource Type:
Accepted Manuscript
Journal Name:
High Energy Density Physics
Additional Journal Information:
[ Journal Volume: 25]; Journal ID: ISSN 1574-1818
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Electrical conductivity

Citation Formats

Starrett, C. E. Potential of mean force for electrical conductivity of dense plasmas. United States: N. p., 2017. Web. doi:10.1016/j.hedp.2017.09.003.
Starrett, C. E. Potential of mean force for electrical conductivity of dense plasmas. United States. doi:10.1016/j.hedp.2017.09.003.
Starrett, C. E. Thu . "Potential of mean force for electrical conductivity of dense plasmas". United States. doi:10.1016/j.hedp.2017.09.003. https://www.osti.gov/servlets/purl/1396133.
@article{osti_1396133,
title = {Potential of mean force for electrical conductivity of dense plasmas},
author = {Starrett, C. E.},
abstractNote = {The electrical conductivity in dense plasmas can be calculated with the relaxation-time approximation provided that the interaction potential between the scattering electron and the ion is known. To date there has been considerable uncertainty as to the best way to define this interaction potential so that it correctly includes the effects of ionic structure, screening by electrons and partial ionization. The current approximations lead to significantly different results with varying levels of agreement when compared to bench-mark calculations and experiments. Here, we present a new way to define this potential, drawing on ideas from classical fluid theory to define a potential of mean force. This new potential results in significantly improved agreement with experiments and bench-mark calculations, and includes all the aforementioned physics self-consistently.},
doi = {10.1016/j.hedp.2017.09.003},
journal = {High Energy Density Physics},
number = ,
volume = [25],
place = {United States},
year = {2017},
month = {9}
}

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