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High spatial and temporal resolution visible spectroscopy of the plasma edge in DIII-D [electronic resource].

Published
Washington, D.C : United States. Dept. of Energy. Office of Energy Research, 1990.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: (11 pages) : digital, PDF file
Additional Creators
General Atomic Company, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
In DIII-D, visible spectroscopic measurements of the He II 468.6 nm and C VI 529.2 nm Doppler broadened spectral lines, resulting from charge exchange recombination interactions between beam neutral atoms and plasma ions, are performed to determine ion temperatures, and toroidal and poloidal rotation velocities. The diagnostics system comprises 32 viewing chords spanning a typical minor radius of 63 cm across the midplane, of which 16 spatial chords span 11 cm of the plasma edge just within the separatrix. A temporal resolution of 260 μs per time slice can be obtained as a result of using MCP phosphors with short decay times and fast camera readout electronics. Results from this system will be used in radial electric field comparisons with theory at the L-H transition and ion transport analysis. 6 refs., 3 figs.
Report Numbers
E 1.99:ga-a-20105
E 1.99: conf-900557--23
conf-900557--23
ga-a-20105
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
10/01/1990.
"ga-a-20105"
" conf-900557--23"
"DE91002718"
8. topical conference on high-temperature plasma diagnostics, Hyannis, MA (USA), 6-10 May 1990.
Groebner, R.J.; Burrell, K.H.; Gohil, P.; Seraydarian, R.P.
Funding Information
AC03-89ER51114
View MARC record | catkey: 14748620