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Title: Enhancement of nuclear reaction rates in asymmetric binary ionic mixtures

Abstract

Here, using orbital-free molecular dynamics simulations we study the structure and dynamics of increasingly asymmetric mixtures such as hydrogen–carbon, hydrogen–aluminium, hydrogen–copper, and hydrogen–silver. We show that, whereas the heavy component structure is close to an effective one-component plasma (OCP), the light component appears more structured than the corresponding OCP. This effect is related to the crossover towards a Lorentz-type diffusion triggered by strongly coupled, highly charged heavy ions, and witnessed by the change of temperature scaling laws of diffusion. Finally, this over-correlation translates into an enhancement of nuclear reaction rates much higher than its classical OCP counterpart.

Authors:
 [1];  [1];  [1];  [2];  [2];  [2];  [2]
  1. Alternative Energies and Atomic Energy Commission (CEA), Arpajon (France). Division of Military Applications (DAM)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Alternative Energies and Atomic Energy Commission (CEA), Arpajon (France)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10); Alternative Energies and Atomic Energy Commission (CEA) (France)
OSTI Identifier:
1477685
Report Number(s):
LA-UR-17-27963
Journal ID: ISSN 0863-1042
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Contributions to Plasma Physics
Additional Journal Information:
Journal Volume: 57; Journal Issue: 10; Journal ID: ISSN 0863-1042
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; enhancement factor; plasmas mixtures

Citation Formats

Clérouin, J., Arnault, P., Desbiens, N., White, A., Ticknor, C., Kress, J. D., and Collins, L. A. Enhancement of nuclear reaction rates in asymmetric binary ionic mixtures. United States: N. p., 2017. Web. doi:10.1002/ctpp.201700090.
Clérouin, J., Arnault, P., Desbiens, N., White, A., Ticknor, C., Kress, J. D., & Collins, L. A. Enhancement of nuclear reaction rates in asymmetric binary ionic mixtures. United States. doi:10.1002/ctpp.201700090.
Clérouin, J., Arnault, P., Desbiens, N., White, A., Ticknor, C., Kress, J. D., and Collins, L. A. Wed . "Enhancement of nuclear reaction rates in asymmetric binary ionic mixtures". United States. doi:10.1002/ctpp.201700090. https://www.osti.gov/servlets/purl/1477685.
@article{osti_1477685,
title = {Enhancement of nuclear reaction rates in asymmetric binary ionic mixtures},
author = {Clérouin, J. and Arnault, P. and Desbiens, N. and White, A. and Ticknor, C. and Kress, J. D. and Collins, L. A.},
abstractNote = {Here, using orbital-free molecular dynamics simulations we study the structure and dynamics of increasingly asymmetric mixtures such as hydrogen–carbon, hydrogen–aluminium, hydrogen–copper, and hydrogen–silver. We show that, whereas the heavy component structure is close to an effective one-component plasma (OCP), the light component appears more structured than the corresponding OCP. This effect is related to the crossover towards a Lorentz-type diffusion triggered by strongly coupled, highly charged heavy ions, and witnessed by the change of temperature scaling laws of diffusion. Finally, this over-correlation translates into an enhancement of nuclear reaction rates much higher than its classical OCP counterpart.},
doi = {10.1002/ctpp.201700090},
journal = {Contributions to Plasma Physics},
number = 10,
volume = 57,
place = {United States},
year = {2017},
month = {12}
}

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