NDLI: Characterization of a target plasma for MTF

Content Provider	IEEE Xplore Digital Library
Author	Wysocki, F.J. Idzorek, G. Oona, H. Kirkpatrick, R.C. Lindemuth, H. Sheehey, P.T. Thio, F.Y.
Copyright Year	1998
Description	Author affiliation: Los Alamos Nat. Lab., NM, USA (Wysocki, F.J.)
Abstract	Summary form only given. Magnetized Target Fusion (MTF) is an approach to fusion where a preheated and magnetized plasma is adiabatically compressed to fusion conditions. Successful MTF requires a suitable initial target plasma with a magnetic field of at least 5 T in a closed-field-line topology, a density of roughly 10/sup 18/ cm/sup -3/, a temperature of at least 50 eV but preferably closer to 300 eV, and must be free of impurities which would raise radiation losses. Target plasma generation experiments are performed at Los Alamos National Laboratory using the Colt facility; a 0.25 MJ, /spl ap/2.5 /spl mu/s rise-time capacitor bank. The goal of these experiments is to demonstrate plasma conditions meeting the requirements for a MTF initial target plasma. The plasma is produced by driving a z-directed current of 1-2 MA through either a static gas fill or a 200 /spl mu/m diameter frozen gas fiber along the axis./sup 3/ The resulting plasma is contained in a 2 cm radius by 2 cm high cylindrical metal wall. The diagnostics include B-dot probes, framing camera, gated OMA visible spectrometer, time-resolved monochromator, filtered silicon photodiodes, and a plasma-density interferometer. A multipoint Thomson scattering diagnostic is being installed, which will use a pulsed ruby laser which produces 20 J in a 25 ns wide pulse. The viewing optics will collect scattered light from six spatial positions in the plasma. In addition, the background plasma light will be measured both above and below each scattering volume to allow subtraction of this background light from the scattered-light signal. The experimental design and data will be presented.
Starting Page	322
Ending Page	323
File Size	223314
Page Count	2
File Format	PDF
ISBN	0780347927
ISSN	07309244
DOI	10.1109/PLASMA.1998.677960
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical scattering Plasma density Plasma temperature Plasma diagnostics Plasma measurements Light scattering Optical interferometry Optical pulses Magnetic fields Topology
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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