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Title: Fast ion transport at a gas-metal interface

Abstract

Fast ion transport and the resulting fusion yield reduction are computed at a gas-metal interface. The extent of fusion yield reduction is observed to depend sensitively on the charge state of the surrounding pusher material and the width of the atomically mixed region. These sensitivities suggest that idealized boundary conditions often implemented at the gas-pusher interface for the purpose of estimating fast ion loss will likely overestimate fusion reactivity reduction in several important limits. Additionally, the impact of a spatially complex material interface is investigated by considering a collection of droplets of the pusher material immersed in a DT plasma. It is found that for small Knudsen numbers, the extent of fusion yield reduction scales with the surface area of the material interface. As the Knudsen number is increased, but, the simple surface area scaling is broken, suggesting that hydrodynamic mix has a nontrivial impact on the extent of fast ion losses.

Authors:
ORCiD logo [1]; ORCiD logo [1]; 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 National Nuclear Security Administration (NNSA)
OSTI Identifier:
1417811
Alternate Identifier(s):
OSTI ID: 1407435
Report Number(s):
LA-UR-17-25628
Journal ID: ISSN 1070-664X
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 24; Journal Issue: 11; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

McDevitt, Christopher J., Tang, Xian-Zhu, and Guo, Zehua. Fast ion transport at a gas-metal interface. United States: N. p., 2017. Web. doi:10.1063/1.4998462.
McDevitt, Christopher J., Tang, Xian-Zhu, & Guo, Zehua. Fast ion transport at a gas-metal interface. United States. doi:10.1063/1.4998462.
McDevitt, Christopher J., Tang, Xian-Zhu, and Guo, Zehua. Mon . "Fast ion transport at a gas-metal interface". United States. doi:10.1063/1.4998462. https://www.osti.gov/servlets/purl/1417811.
@article{osti_1417811,
title = {Fast ion transport at a gas-metal interface},
author = {McDevitt, Christopher J. and Tang, Xian-Zhu and Guo, Zehua},
abstractNote = {Fast ion transport and the resulting fusion yield reduction are computed at a gas-metal interface. The extent of fusion yield reduction is observed to depend sensitively on the charge state of the surrounding pusher material and the width of the atomically mixed region. These sensitivities suggest that idealized boundary conditions often implemented at the gas-pusher interface for the purpose of estimating fast ion loss will likely overestimate fusion reactivity reduction in several important limits. Additionally, the impact of a spatially complex material interface is investigated by considering a collection of droplets of the pusher material immersed in a DT plasma. It is found that for small Knudsen numbers, the extent of fusion yield reduction scales with the surface area of the material interface. As the Knudsen number is increased, but, the simple surface area scaling is broken, suggesting that hydrodynamic mix has a nontrivial impact on the extent of fast ion losses.},
doi = {10.1063/1.4998462},
journal = {Physics of Plasmas},
number = 11,
volume = 24,
place = {United States},
year = {2017},
month = {11}
}

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Cited by: 3 works
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Works referenced in this record:

Thermo-diffusion in inertially confined plasmas
journal, April 2014


Asymptotic separation in multispecies collisional plasma shocks
journal, July 2014


Plasma kinetic effects on interfacial mix
journal, November 2016

  • Yin, L.; Albright, B. J.; Taitano, W.
  • Physics of Plasmas, Vol. 23, Issue 11
  • DOI: 10.1063/1.4966562

A comparative study of the tail ion distribution with reduced Fokker–Planck models
journal, March 2014

  • McDevitt, C. J.; Tang, Xian-Zhu; Guo, Zehua
  • Physics of Plasmas, Vol. 21, Issue 3
  • DOI: 10.1063/1.4868732

A hybrid model for coupling kinetic corrections of fusion reactivity to hydrodynamic implosion simulations
journal, March 2014

  • Tang, Xian-Zhu; McDevitt, C. J.; Guo, Zehua
  • Physics of Plasmas, Vol. 21, Issue 3
  • DOI: 10.1063/1.4868733

Influence of high-energy ion loss on DT reaction rate in laser fusion pellets
journal, December 1979


Reduced Fokker-Planck models for fast particle distribution across a transition layer of disparate plasma temperatures
journal, March 2014

  • Tang, Xian-Zhu; Berk, H. L.; Guo, Zehua
  • Physics of Plasmas, Vol. 21, Issue 3
  • DOI: 10.1063/1.4868731

Fusion utility in the Knudsen layer
journal, September 2014

  • Davidovits, Seth; Fisch, Nathaniel J.
  • Physics of Plasmas, Vol. 21, Issue 9
  • DOI: 10.1063/1.4895477

The potential role of electric fields and plasma barodiffusion on the inertial confinement fusion database
journal, May 2011

  • Amendt, Peter; Wilks, S. C.; Bellei, C.
  • Physics of Plasmas, Vol. 18, Issue 5
  • DOI: 10.1063/1.3577577

Study of the ion kinetic effects in ICF run-away burn using a quasi-1D hybrid model
journal, February 2017

  • Huang, C. -K.; Molvig, K.; Albright, B. J.
  • Physics of Plasmas, Vol. 24, Issue 2
  • DOI: 10.1063/1.4976323

Atomic mix in directly driven inertial confinement implosions
journal, November 2011

  • Wilson, D. C.; Ebey, P. S.; Sangster, T. C.
  • Physics of Plasmas, Vol. 18, Issue 11
  • DOI: 10.1063/1.3656962

An adaptive, conservative 0D-2V multispecies Rosenbluth–Fokker–Planck solver for arbitrarily disparate mass and temperature regimes
journal, August 2016


Calculation of the fast ion tail distribution for a spherically symmetric hot spot
journal, October 2014

  • McDevitt, C. J.; Tang, X. -Z.; Guo, Z.
  • Physics of Plasmas, Vol. 21, Issue 10
  • DOI: 10.1063/1.4898055

Spherical ion kinetic simulations of DT implosions
journal, October 1995


Fusion yield rate recovery by escaping hot-spot fast ions in the neighboring fuel layer
journal, February 2014


Onset of Hydrodynamic Mix in High-Velocity, Highly Compressed Inertial Confinement Fusion Implosions
journal, August 2013


FLYCHK: Generalized population kinetics and spectral model for rapid spectroscopic analysis for all elements
journal, December 2005


Electro-diffusion in a plasma with two ion species
journal, August 2012

  • Kagan, Grigory; Tang, Xian-Zhu
  • Physics of Plasmas, Vol. 19, Issue 8
  • DOI: 10.1063/1.4745869

Nonlinear Structure of the Diffusing Gas-Metal Interface in a Thermonuclear Plasma
journal, October 2014


Burn Characteristics of Marginal Deuterium-Tritium Microspheres
journal, November 1974


Improved formulas for fusion cross-sections and thermal reactivities
journal, April 1992


Indirect-drive noncryogenic double-shell ignition targets for the National Ignition Facility: Design and analysis
journal, May 2002

  • Amendt, Peter; Colvin, J. D.; Tipton, R. E.
  • Physics of Plasmas, Vol. 9, Issue 5
  • DOI: 10.1063/1.1459451

A new expansion method for computing for reactant distribution functions
journal, July 1978


Knudsen Layer Reduction of Fusion Reactivity
journal, August 2012


Revised Knudsen-layer reduction of fusion reactivity
journal, December 2013

  • Albright, B. J.; Molvig, Kim; Huang, C. -K.
  • Physics of Plasmas, Vol. 20, Issue 12
  • DOI: 10.1063/1.4833639

Simulation and assessment of ion kinetic effects in a direct-drive capsule implosion experiment
journal, October 2016

  • Le, A.; Kwan, T. J. T.; Schmitt, M. J.
  • Physics of Plasmas, Vol. 23, Issue 10
  • DOI: 10.1063/1.4965913

Tail-ion transport and Knudsen layer formation in the presence of magnetic fields
journal, November 2013

  • Schmit, P. F.; Molvig, Kim; Nakhleh, C. W.
  • Physics of Plasmas, Vol. 20, Issue 11
  • DOI: 10.1063/1.4831958

Three-dimensional simulations of low foot and high foot implosion experiments on the National Ignition Facility
journal, March 2016

  • Clark, D. S.; Weber, C. R.; Milovich, J. L.
  • Physics of Plasmas, Vol. 23, Issue 5
  • DOI: 10.1063/1.4943527

Ion Fokker-Planck simulation of D- 3 He gas target implosions
journal, December 2012


One-dimensional particle simulations of Knudsen-layer effects on D-T fusion
journal, December 2014

  • Cohen, Bruce I.; Dimits, Andris M.; Zimmerman, George B.
  • Physics of Plasmas, Vol. 21, Issue 12
  • DOI: 10.1063/1.4903323

Initial cone-in-shell fast-ignition experiments on OMEGA
journal, May 2011

  • Theobald, W.; Solodov, A. A.; Stoeckl, C.
  • Physics of Plasmas, Vol. 18, Issue 5
  • DOI: 10.1063/1.3566082

Self-Similar Structure and Experimental Signatures of Suprathermal Ion Distribution in Inertial Confinement Fusion Implosions
journal, September 2015