PROGRESS TOWARD FULLY NONINDUCTIVE, HIGH BETA DISCHARGES IN DIII-D [electronic resource].
- Published
- San Diego, Calif. : General Atomic Company, 2003.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 7 pages : digital, PDF file
- Additional Creators
- General Atomic Company and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- OAK-B135 Advanced Tokamak (AT) research in DIII-D focuses on developing a scientific basis for steady-state, high performance operation. For optimal performance, these experiments routinely operate with β above the n = 1 no-wall limit, enabled by active feed-back control. The ideal wall β limit is optimized by modifying the plasma shape, current and pressure profile. Present DIII-D AT experiments operate with f{sub BS} ≈ 50%-60%, with a long-term goal of ≈ 90%. Additional current is provided by neutral beam and electron cyclotron current drive, the latter being localized well away from the magnetic axis (ρ ≈ 0.4-0.5). Guided by integrated modeling, recent experiments have produced discharges with β ≈ 3%, β{sub N} ≈ 3, f{sub BS} ≈ 55% and noninductive fraction f{sub NI} ≈ 90%. Additional control is anticipated using fast wave current drive to control the central current density.
- Report Numbers
- E 1.99:821580
- Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
08/01/2003.
30TH EUROPEAN PHYSICAL SOCIETY CONFERENCE ON CONTROLLED FUSION AND PLASMA PHYSICS, St. PETERSBURG (RU), 07/07/2003--07/11/2003.
MURAKAMI,M; KESSEL,C; DIII-D NATIONAL TEAM; PRATER,R; LOHR,J; PETRIE,TW; MAKOWSKI,MA; LAO,LL; FERRON,JR; LUCE,TC; PETTY,CC; CASPER,TA; POLITZER,PA; PINSKER,RI; GAROFALO,AM; BURRELL,KH; WADE,MR; TAYLOR,TS; WEST,WP; GREENFIELD,CM; JAYAKUMAR,RJ; DOYLE,EJ; BUDNY,RV; DeBOO,JC; MERD,JE; St JOHN,HE.
(US) - Funding Information
- AC03-99ER54463
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