OVERVIEW OF H-MODE PEDESTAL RESEARCH ON DIII-D
Description/Abstract
Developing an understanding of the processes that control the H-mode transport barrier is motivated by the significant impact this small region (typically <2% of the minor radius) can have on overall plasma performance. Conditions at the inner edge of the H-mode transport barrier can strongly influence the overall energy confinement, and the maximum density, and therefore fusion power, that can be achieved with the typically flat H-mode density profiles [1,2]. The ELM instability, which usually regulates the pressure gradient in the H-mode edge, can result in large power loads to, and erosion of, the divertor targets in a reactor scale device [3]. The goal of H-mode pedestal research at DIII-D is to: (1) develop a physics based model that would allow prediction of the conditions at the top of the H-mode pedestal, (2) develop an understanding of processes which control Type I ELM effects in the core and divertor, and (3) explore alternatives to the Type I ELM regime.
| Creator/Author: | T.H. OSBORNE ; K.H. BURRELL ; T.N. CARLSTROM ; M.S. CHU ; E.J. DOYLE ; J.R. FERRON ; R.J. GROEBNER ; R.J. LA HAYE ; L.L. LAO ; A.W. LEONARD ; M.A. MAHDAVI ; G.R. PORTER ; P.B. SNYDER ; E.J. STRAIT ; G.M. STAEBLER ; D.M. THOMAS ; A.D. TURNBULL ; M.R. WADE ; THE DIII-D TEAM |
|---|---|
| Publication Date: | 2001 Jul 01 |
| OSTI Identifier: | OSTI ID: 805253 |
| DOE Contract Number: | AC03-99ER54463 |
| Other Number(s): | TRN: US0302740 |
| Resource Type: | Conference |
| Resource Relation: | Conference: 28th European Physical Society Conference on Plasma Physics in Controlled Fusion, Madeira (PT), 06/18/2001--06/22/2001; Other Information: THIS IS A PREPRINT OF A PAPER TO BE PRESENTED AT THE 28TH EUROPEAN PHYSICAL SOCIETY CONFERENCE ON PLASMA PHYSICS IN CONTROLLED FUSION, MADEIRA, PORTUGAL, JUNE 18-22, 2001, AND TO BE PUBLISHED IN THE ''PROCEEDINGS''; PBD: 1 Jul 2001 |
| Research Org: | GENERAL ATOMICS (US) |
| Sponsoring Org: | (US) |
| Subject: | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONFINEMENT; DIVERTORS; DOUBLET-3 DEVICE; FORECASTING; INSTABILITY; PERFORMANCE; PHYSICS; PRESSURE GRADIENTS; TARGETS; TRANSPORT |
| Country of Publication: | United States |
| Language: | English |
| Format: | Size: 7 pages |
| Availability: | Oakland Operations Office, Oakland, CA (US); INIS |
| Update Date: | 2008 Feb 05 |
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