Effects of residual kinetic energy on yield degradation and ion temperature asymmetries in inertial confinement fusion implosions

K. M. Woo, R. Betti, D. Shvarts, A. Bose, D. Patel, R. Yan, Po-Yu Chang, O. M. Mannion, R. Epstein, J. A. Delettrez, M. Charissis, K. S. Anderson, P. B. Radha, A. Shvydky, I. V. Igumenshchev, V. Gopalaswamy, A. R. Christopherson, J. Sanz, H. Aluie

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The study of Rayleigh-Taylor instability in the deceleration phase of inertial confinement fusion implosions is carried out using the three-dimensional (3-D) radiation-hydrodynamic Eulerian parallel code DEC3D. We show that the yield-over-clean is a strong function of the residual kinetic energy (RKE) for low modes. Our analytical models indicate that the behavior of larger hot-spot volumes observed in low modes and the consequential pressure degradation can be explained in terms of increasing the RKE. These results are derived using a simple adiabatic implosion model of the deceleration phase as well as through an extensive set of 3-D single-mode simulations using the code DEC3D. The effect of the bulk velocity broadening on ion temperature asymmetries is analyzed for different mode numbers ℓ=1-12. The jet observed in low mode ℓ=1 is shown to cause the largest ion temperature variation in the mode spectrum. The vortices of high modes within the cold bubbles are shown to cause lower ion temperature variations than low modes.

Original languageEnglish
Article number052704
JournalPhysics of Plasmas
Volume25
Issue number5
DOIs
Publication statusPublished - 2018 May 1

Fingerprint

inertial confinement fusion
implosions
ion temperature
kinetic energy
asymmetry
degradation
temperature
deceleration
Taylor instability
causes
bubbles
hydrodynamics
vortices
radiation

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Woo, K. M. ; Betti, R. ; Shvarts, D. ; Bose, A. ; Patel, D. ; Yan, R. ; Chang, Po-Yu ; Mannion, O. M. ; Epstein, R. ; Delettrez, J. A. ; Charissis, M. ; Anderson, K. S. ; Radha, P. B. ; Shvydky, A. ; Igumenshchev, I. V. ; Gopalaswamy, V. ; Christopherson, A. R. ; Sanz, J. ; Aluie, H. / Effects of residual kinetic energy on yield degradation and ion temperature asymmetries in inertial confinement fusion implosions. In: Physics of Plasmas. 2018 ; Vol. 25, No. 5.
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Woo, KM, Betti, R, Shvarts, D, Bose, A, Patel, D, Yan, R, Chang, P-Y, Mannion, OM, Epstein, R, Delettrez, JA, Charissis, M, Anderson, KS, Radha, PB, Shvydky, A, Igumenshchev, IV, Gopalaswamy, V, Christopherson, AR, Sanz, J & Aluie, H 2018, 'Effects of residual kinetic energy on yield degradation and ion temperature asymmetries in inertial confinement fusion implosions', Physics of Plasmas, vol. 25, no. 5, 052704. https://doi.org/10.1063/1.5026706

Effects of residual kinetic energy on yield degradation and ion temperature asymmetries in inertial confinement fusion implosions. / Woo, K. M.; Betti, R.; Shvarts, D.; Bose, A.; Patel, D.; Yan, R.; Chang, Po-Yu; Mannion, O. M.; Epstein, R.; Delettrez, J. A.; Charissis, M.; Anderson, K. S.; Radha, P. B.; Shvydky, A.; Igumenshchev, I. V.; Gopalaswamy, V.; Christopherson, A. R.; Sanz, J.; Aluie, H.

In: Physics of Plasmas, Vol. 25, No. 5, 052704, 01.05.2018.

Research output: Contribution to journalArticle

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T1 - Effects of residual kinetic energy on yield degradation and ion temperature asymmetries in inertial confinement fusion implosions

AU - Woo, K. M.

AU - Betti, R.

AU - Shvarts, D.

AU - Bose, A.

AU - Patel, D.

AU - Yan, R.

AU - Chang, Po-Yu

AU - Mannion, O. M.

AU - Epstein, R.

AU - Delettrez, J. A.

AU - Charissis, M.

AU - Anderson, K. S.

AU - Radha, P. B.

AU - Shvydky, A.

AU - Igumenshchev, I. V.

AU - Gopalaswamy, V.

AU - Christopherson, A. R.

AU - Sanz, J.

AU - Aluie, H.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The study of Rayleigh-Taylor instability in the deceleration phase of inertial confinement fusion implosions is carried out using the three-dimensional (3-D) radiation-hydrodynamic Eulerian parallel code DEC3D. We show that the yield-over-clean is a strong function of the residual kinetic energy (RKE) for low modes. Our analytical models indicate that the behavior of larger hot-spot volumes observed in low modes and the consequential pressure degradation can be explained in terms of increasing the RKE. These results are derived using a simple adiabatic implosion model of the deceleration phase as well as through an extensive set of 3-D single-mode simulations using the code DEC3D. The effect of the bulk velocity broadening on ion temperature asymmetries is analyzed for different mode numbers ℓ=1-12. The jet observed in low mode ℓ=1 is shown to cause the largest ion temperature variation in the mode spectrum. The vortices of high modes within the cold bubbles are shown to cause lower ion temperature variations than low modes.

AB - The study of Rayleigh-Taylor instability in the deceleration phase of inertial confinement fusion implosions is carried out using the three-dimensional (3-D) radiation-hydrodynamic Eulerian parallel code DEC3D. We show that the yield-over-clean is a strong function of the residual kinetic energy (RKE) for low modes. Our analytical models indicate that the behavior of larger hot-spot volumes observed in low modes and the consequential pressure degradation can be explained in terms of increasing the RKE. These results are derived using a simple adiabatic implosion model of the deceleration phase as well as through an extensive set of 3-D single-mode simulations using the code DEC3D. The effect of the bulk velocity broadening on ion temperature asymmetries is analyzed for different mode numbers ℓ=1-12. The jet observed in low mode ℓ=1 is shown to cause the largest ion temperature variation in the mode spectrum. The vortices of high modes within the cold bubbles are shown to cause lower ion temperature variations than low modes.

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