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Title: Hohlraum used as a single turn solenoid to generate seed magnetic field for inertial confinement fusion

Abstract

Application of axial seed magnetic fields in the range 20-100 T that compress to greater than 10,000 T (100 MG) under typical NIF implosion conditions may significantly relax the conditions required for ignition and propagating burn in NIF ignition targets that are degraded by hydrodynamic instabilities. Such magnetic fields can: (a) permit the recovery of ignition, or at least significant alpha particle heating, in submarginal NIF targets that would otherwise fail because of adverse hydrodynamic instability growth, (b) permit the attainment of ignition in conventional cryogenic layered solid-DT targets redesigned to operate under reduced drive conditions, (c) permit the attainment of volumetric ignition in simpler, room-temperature single-shell DT gas capsules, and (d) ameliorate adverse hohlraum plasma conditions during laser drive and capsule compression. In general, an applied magnetic field should always improve the ignition condition for any NIF ignition target design.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1892543
Patent Number(s):
11,227,693
Application Number:
16/152,716
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 10/05/2018
Country of Publication:
United States
Language:
English

Citation Formats

Perkins, Lindsay John, Hammer, Jim H., Moody, John H., Tabak, Max, and Logan, Burl Grant. Hohlraum used as a single turn solenoid to generate seed magnetic field for inertial confinement fusion. United States: N. p., 2022. Web.
Perkins, Lindsay John, Hammer, Jim H., Moody, John H., Tabak, Max, & Logan, Burl Grant. Hohlraum used as a single turn solenoid to generate seed magnetic field for inertial confinement fusion. United States.
Perkins, Lindsay John, Hammer, Jim H., Moody, John H., Tabak, Max, and Logan, Burl Grant. 2022. "Hohlraum used as a single turn solenoid to generate seed magnetic field for inertial confinement fusion". United States. https://www.osti.gov/servlets/purl/1892543.
@article{osti_1892543,
title = {Hohlraum used as a single turn solenoid to generate seed magnetic field for inertial confinement fusion},
author = {Perkins, Lindsay John and Hammer, Jim H. and Moody, John H. and Tabak, Max and Logan, Burl Grant},
abstractNote = {Application of axial seed magnetic fields in the range 20-100 T that compress to greater than 10,000 T (100 MG) under typical NIF implosion conditions may significantly relax the conditions required for ignition and propagating burn in NIF ignition targets that are degraded by hydrodynamic instabilities. Such magnetic fields can: (a) permit the recovery of ignition, or at least significant alpha particle heating, in submarginal NIF targets that would otherwise fail because of adverse hydrodynamic instability growth, (b) permit the attainment of ignition in conventional cryogenic layered solid-DT targets redesigned to operate under reduced drive conditions, (c) permit the attainment of volumetric ignition in simpler, room-temperature single-shell DT gas capsules, and (d) ameliorate adverse hohlraum plasma conditions during laser drive and capsule compression. In general, an applied magnetic field should always improve the ignition condition for any NIF ignition target design.},
doi = {},
url = {https://www.osti.gov/biblio/1892543}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 18 00:00:00 EST 2022},
month = {Tue Jan 18 00:00:00 EST 2022}
}

Works referenced in this record: