Neoclassical tearing modes in DIII-D and calculations of the stabilizing effects of localized electron cyclotron current drive
Description/Abstract
Neoclassical tearing modes are found to limit the achievable beta in many high performance discharges in DIII-D. Electron cyclotron current drive within the magnetic islands formed as the tearing mode grows has been proposed as a means of stabilizing these modes or reducing their amplitude, thereby increasing the beta limit by a factor around 1.5. Some experimental success has been obtained previously on Asdex-U. Here the authors examine the parameter range in DIII-C in which this effect can best be studied.
| Creator/Author: | Prater, R. ; La Haye, R.J. ; Lin-Liu, Y.R. ; Lohr, J. [General Atomics, San Diego, CA (United States)] ; Bernabei, S. ; Perkins, F.W. ; Wong, K.L. [Princeton Plasma Physics Lab., NJ (United States)] ; Harvey, R.W. [CompX, Del Mar, CA (United States)] |
|---|---|
| Publication Date: | 1999 May 01 |
| OSTI Identifier: | OSTI ID: 354990; Legacy ID: DE99003186 |
| Report Number(s): | GA--A23098; CONF-990411-- |
| DOE Contract Number: | AC03-99ER54463;AC02-76CH03073 |
| Other Number(s): | Other: ON: DE99003186; TRN: AHC29924%%194 |
| Resource Type: | Conference |
| Resource Relation: | Conference: 13. topical conference on applications of radio frequency power to plasmas, Annapolis, MD (United States), 12-14 Apr 1999; Other Information: PBD: May 1999 |
| Research Org: | General Atomics, San Diego, CA (United States);Princeton Plasma Physics Lab., NJ (United States) |
| Sponsoring Org: | USDOE Office of Energy Research, Washington, DC (United States) |
| Subject: | 70 PLASMA PHYSICS AND FUSION; DOUBLET-3 DEVICE; TEARING INSTABILITY; STABILIZATION; NEOCLASSICAL TRANSPORT THEORY; MAGNETIC ISLANDS; ECR HEATING; NON-INDUCTIVE CURRENT DRIVE; ELECTRIC CURRENTS |
| Country of Publication: | United States |
| Language: | English |
| Format: | Size: 5 p. |
| Availability: | INIS; OSTI as DE99003186 To purchase this media from NTIS, click here |
| Update Date: | 2009 Nov 10 |
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