Title: 3D simulations of inertial confinement fusion implosions part 1: inline modeling of polarized cross beam energy transfer and subsequent drive anomalies on OMEGA and NIF

Abstract

Inertial confinement fusion experiments are sensitive to cross-beam energy transfer (CBET), a laser-plasma instability that redistributes laser energy in the coronal plasma through self-generated ion acoustic wave (IAW) gratings. The detailed CBET coupling depends on the polarization state of the crossing wavefields. CBET itself can also scramble the beam polarizations by inducing ellipticity through the IAW grating, and rotating the seed polarization toward that of the pump. We develop a ray-based model that describes the polarized CBET coupling and that is compatible with the framework of 3D inline radiative hydrodynamics simulations. The model is implemented in the ASTER/IFRIIT code and verified against an academic test case and an offline polarized CBET post-processor. It is then applied to the detailed configuration of the distributed polarization rotator system on OMEGA, where results highlight how polarized CBET induces significant low modes in the collisional absorption source term. Finally, the modeling is applied to a simple indirect-drive configuration, comparing CBET calculations with 96 unpolarized or polarized beams with 24 unpolarized quads. It is shown that these cases produce similar power amplification per cone of beams grouped with similar polar angles. However, the 96 beam geometry itself is found to reduce azimuthal variations in quadmore » power after the interaction and favors beams with larger polar angles within the cones, an effect that is amplified by the polarized CBET. Application of the model to inline calculations of OMEGA implosions are presented in a companion paper.« less

Authors:

Colaïtis, Arnaud  ^[1];

• Search DOE PAGES for author "Colaïtis, Arnaud"
• Search DOE PAGES for ORCID "0000-0003-4913-1653"

Edgell, D.  ^[2];

• Search DOE PAGES for author "Edgell, D."
• Search DOE PAGES for ORCID "0000-0002-4626-519X"

Igumenshchev, I.  ^[2];

• Search DOE PAGES for author "Igumenshchev, I."
• Search DOE PAGES for ORCID "0000-0001-5495-8503"

Turnbull, D.  ^[2];

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• Search DOE PAGES for ORCID "0000-0002-9887-1028"

Strozzi, D. J. ^[3]; Chapman, T. ^[3]; Goncharov, V.  ^[2];

• Search DOE PAGES for author "Goncharov, V."
• Search DOE PAGES for ORCID "0000-0003-2730-1666"

Froula, D. H.  ^[2]

• Search DOE PAGES for author "Froula, D. H."
• Search DOE PAGES for ORCID "0000-0001-6981-3956"

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+ Show Author Affiliations

1. Centre Lasers Intenses et Applications, Talence (France)
2. Lab. for Laser Energetics, Rochester, NY (United States)
3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Publication Date:

Wed Dec 14 00:00:00 EST 2022

Research Org.:

Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:

USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:

1962050

Alternate Identifier(s):

OSTI ID: 1959655

Report Number(s):

LLNL-JRNL-832731
Journal ID: ISSN 0741-3335; TRN: US2313058

Grant/Contract Number:  

NA0003856; AC52-07NA27344

Resource Type:

Accepted Manuscript

Journal Name:

Plasma Physics and Controlled Fusion

Additional Journal Information:

Journal Volume: 65; Journal Issue: 1; Journal ID: ISSN 0741-3335

Publisher:

IOP Science

Country of Publication:

United States

Language:

English

Subject:

70 PLASMA PHYSICS AND FUSION TECHNOLOGY; inertial confinement fusion; 3D inline modeling; cross beam energy transfer; polarization; low modes