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

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United States of America

PATENT NO 11227693
APP PUB NO 20190066851A1
SERIAL NO

16152716

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
LAWRENCE LIVERMORE NATIONAL SECURITY LLC7000 EAST AVENUE LIVERMORE CA 94550

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hammer, Jim H Livermore, US 3 8
Logan, Burl Grant Danville, US 3 8
Moody, John H Livermore, US 4 18
Perkins, Lindsay John Pleasanton, US 5 13
Tabak, Max Livermore, US 3 8

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