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Title: Microphysics studies for direct-drive inertial confinement fusion

Abstract

Accurate and self-consistent knowledge of material properties under high-energy-density (HED) conditions is crucial to reliably understand and design inertial confinement fusion (ICF) targets through radiation–hydrodynamic simulations. For direct-drive ICF target designs, the fuel deuterium–tritium mixtures and ablator materials can undergo a wide range of density and temperature conditions. Their properties under extreme HED conditions, including the equation of state, thermal conductivity, opacity, and stopping power, are the necessary inputs for ICF simulations. To improve the predictive capability of radiation–hydrodynamic codes for direct-drive ICF simulations, we have performed systematic ab initio studies on the static, transport, and optical properties of deuterium (D2) and ablator materials such as polystyrene (CH), beryllium (Be), and silicon (Si), using first-principles methods. The obtained material properties, being favorably compared with existing experimental data, have been implemented into radiation–hydrodynamic codes. This article gives a brief review on how these microphysics studies affect the 1-D radiation–hydrodynamic predictions of direct-drive ICF implosions on the OMEGA Laser System.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1492694
Report Number(s):
2017-50, 1460
Journal ID: ISSN 0029-5515; 2017-50, 1460, 2416
Grant/Contract Number:  
NA0001944
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nuclear Fusion
Additional Journal Information:
Journal Volume: 59; Journal Issue: 3; Conference: 10th International Conference on Inertial Fusion Sciences and Applications, Saint Malo, France, 11-15 September 2017; Journal ID: ISSN 0029-5515
Publisher:
IOP Science
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Hu, S. X., Goncharov, V. N., Radha, P. B., Regan, S. P., and Campbell, E. M. Microphysics studies for direct-drive inertial confinement fusion. United States: N. p., 2018. Web. doi:10.1088/1741-4326/aac4e3.
Hu, S. X., Goncharov, V. N., Radha, P. B., Regan, S. P., & Campbell, E. M. Microphysics studies for direct-drive inertial confinement fusion. United States. doi:10.1088/1741-4326/aac4e3.
Hu, S. X., Goncharov, V. N., Radha, P. B., Regan, S. P., and Campbell, E. M. Tue . "Microphysics studies for direct-drive inertial confinement fusion". United States. doi:10.1088/1741-4326/aac4e3. https://www.osti.gov/servlets/purl/1492694.
@article{osti_1492694,
title = {Microphysics studies for direct-drive inertial confinement fusion},
author = {Hu, S. X. and Goncharov, V. N. and Radha, P. B. and Regan, S. P. and Campbell, E. M.},
abstractNote = {Accurate and self-consistent knowledge of material properties under high-energy-density (HED) conditions is crucial to reliably understand and design inertial confinement fusion (ICF) targets through radiation–hydrodynamic simulations. For direct-drive ICF target designs, the fuel deuterium–tritium mixtures and ablator materials can undergo a wide range of density and temperature conditions. Their properties under extreme HED conditions, including the equation of state, thermal conductivity, opacity, and stopping power, are the necessary inputs for ICF simulations. To improve the predictive capability of radiation–hydrodynamic codes for direct-drive ICF simulations, we have performed systematic ab initio studies on the static, transport, and optical properties of deuterium (D2) and ablator materials such as polystyrene (CH), beryllium (Be), and silicon (Si), using first-principles methods. The obtained material properties, being favorably compared with existing experimental data, have been implemented into radiation–hydrodynamic codes. This article gives a brief review on how these microphysics studies affect the 1-D radiation–hydrodynamic predictions of direct-drive ICF implosions on the OMEGA Laser System.},
doi = {10.1088/1741-4326/aac4e3},
journal = {Nuclear Fusion},
issn = {0029-5515},
number = 3,
volume = 59,
place = {United States},
year = {2018},
month = {12}
}

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Cited by: 2 works
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