Skip to Content
Find More Like This
Return to Search

APPLICATION OF COMPRESSED MAGNETIC FIELDS TO THE IGNITION AND THERMONUCLEAR BURN OF INERTIAL CONFINEMENT FUSION TARGETS

United States Patent Application

20140348283
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
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.
Perkins, Lindsay John (Pleasanton, CA), Hammer, Jim H. (Livermore, CA), Moody, John D. (Livermore, CA), Tabak, Max (Livermore, CA), Zimmerman, George Beedon (Lafayette, CA), Logan, Burl Grant (Danville, CA)
14/ 278,611
May 15, 2014
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0002] The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.