79 research outputs found
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NEUTRAL BEAM INJECTOR RESEARCH AND DEVELOPMENT WORK IN THE USA
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NEUTRAL BEAM INJECTION SYSTEMS FOR REACTORS
Increasing effort is being put into engineering designs of reactors and reactor-like magnetic confinement experiments. A central question concerns the methods of heating, fueling, and maintaining the plasmas, functions that primarily are now performed by neutral beams. Planning in the USA does not include the use of neutral beams on tokamaks in the 1990's and beyond. Tandem mirrors, however, will use energetic beams (sloshing ion beams) in the end plugs to produce electrostatic potentials that will confine plasma ions. These systems will be based on the production, acceleration, transport, and neutralization of negative hydrogen-ion (D/sup -/), multiampere beams with energies of 200-to 500-keV. In addition, lower-energy D and T beams may be used. These systems must operate steady state, with high reliability, and be compatible with radiation from a D-T burning plasma
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THE POSITIVE ION PORTION OF THE LBL/LLL NEUTRAL BEAM PROGRAM
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THE POSITIVE ION PORTION OF THE LBL/LLL NEUTRAL BEAM PROGRAM
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AN OVERVIEW OF THE LBL/LLNL NEGATIVE-ION-BASED NEUTRAL BEAM PROGRAM
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NEUTRAL BEAM DEVELOPMENT AT LBL/LLNL
In a joint program LBL and LLNL are developing and testing neutral beam injection systems based on the acceleration of positive ions, for application in the 80- to 160-keV range on MFTF-B, D III, TFTR/TFM, ETF, MNS, etc. A conceptual design of a 160 keV injection system for the German ZEPHYR project is in progress. For applications at energies above about 200 keV, positive-ion-based system efficiencies are unacceptably low for most applications, and so negative-ion-based systems are being developed also
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NEUTRAL BEAM INJECTOR RESEARCH AND DEVELOPMENT WORK IN THE USA
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NEUTRAL BEAM DEVELOPMENT TO THE LAWRENCE BERKELEY AND LAWRENCE LIVERMORE LABORATORIES
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