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Current results from the Los Alamos CTX spheromak [electronic resource].

Published
Los Alamos, N.M. : Los Alamos National Laboratory, 1982.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 7 : digital, PDF file
Additional Creators
Los Alamos National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Continued discharge cleaning, improved vacuum practices, and optimized plasma formation operation have resulted in the CTX experiment achieving 1-ms plasma lifetimes with average temperatures of 20 to 40 eV. The major advance in operation has been the use of 5 to 20 mTorr H/sub 2/ gas fill. A multipoint Thomson scattering diagnostic with 12 radial positions yields radial profiles of temperature and densities, an example of which is shown. Local ..beta..'s can be determined from the measured pressure profile, and average values are typically 15 to 20%. In clean, long-lived discharges the density decreases at a more rapid rate than the magnetic field, until it reaches a value around 2 to 4 x 10/sup 13/ cm/sup -3/ where it remains constant. This is in contrast to the colder, radiation-dominated behavior, and is taken as evidence that the plasma ..beta.. is a limit to current operation in CTX.
Report Numbers
E 1.99:la-ur-82-3290
E 1.99: conf-821124-8
conf-821124-8
la-ur-82-3290
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Note
Published through SciTech Connect.
01/01/1982.
"la-ur-82-3290"
" conf-821124-8"
"DE83003569"
5. symposium on physics and technology of compact toroids in the magnetic fusion energy program, Belevue, WA, USA, 16 Nov 1982.
Sherwood, A.R.; Barnes, C.W.; Henins, I.; Jarboe, T.R.; Knox, S.O.; Hoida, H.W.; Linford, R.K.; Platts, D.A.
Funding Information
W-7405-ENG-36
View MARC record | catkey: 14753792