Enhanced scrape-off layer plasma in DIII-D double-null discharges [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 14 pages : digital, PDF file
Additional Creators:: General Atomic Company, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

In this paper, the authors examine a denser and broader scrape-off layer (SOL) plasma, first seen in VH mode, in the DIII-D tokamak. The enhanced SOL appears in many types of double-null (DN) discharges and is not a property of VH-mode only. The DN enhanced SOL density and temperature profiles exhibit a 5--6 cm broad profile outside the separatrix. For DN and single-null (SN) boundary geometry with similar core plasma conditions, the enhanced SOL is only observed in high triangularity discharges. The origin of the enhanced SOL is, however, not yet understood.

Report Numbers:

E 1.99:ga-a--21708
E 1.99: conf-940580--18
conf-940580--18
ga-a--21708

Subject(s):

Plasma Physics And Fusion Technology

Other Subject(s):

Note:

Published through SciTech Connect.
07/01/1994.
"ga-a--21708"
" conf-940580--18"
"DE94017977"
"35AT10020/35KC07000"
"AT101014Z"
"GB0103012"
11. international conference on plasma surface interactions in controlled fusion devices,Mito (Japan),23-27 May 1994.
Watkins, J.G.; Jong, R.A.; Moyer, R.A.

Funding Information:

AC03-89ER51114
FG03-89ER51121
AC04-94AL85000
W-7405-ENG-48

View MARC record | catkey: 14745426