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Title: Application of compressed magnetic fields to the ignition and thermonuclear burn of inertial confinement fusion targets

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:
; ; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1494567
Patent Number(s):
10,134,491
Application Number:
14/278,611
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 May 15
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Perkins, Lindsay John, Hammer, Jim H., Moody, John D., Tabak, Max, Zimmerman, George Beedon, and Logan, Burl Grant. Application of compressed magnetic fields to the ignition and thermonuclear burn of inertial confinement fusion targets. United States: N. p., 2018. Web.
Perkins, Lindsay John, Hammer, Jim H., Moody, John D., Tabak, Max, Zimmerman, George Beedon, & Logan, Burl Grant. Application of compressed magnetic fields to the ignition and thermonuclear burn of inertial confinement fusion targets. United States.
Perkins, Lindsay John, Hammer, Jim H., Moody, John D., Tabak, Max, Zimmerman, George Beedon, and Logan, Burl Grant. Tue . "Application of compressed magnetic fields to the ignition and thermonuclear burn of inertial confinement fusion targets". United States. https://www.osti.gov/servlets/purl/1494567.
@article{osti_1494567,
title = {Application of compressed magnetic fields to the ignition and thermonuclear burn of inertial confinement fusion targets},
author = {Perkins, Lindsay John and Hammer, Jim H. and Moody, John D. and Tabak, Max and Zimmerman, George Beedon 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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {11}
}

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