OVERVIEW OF H-MODE PEDESTAL RESEARCH ON DIII-D
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.
- Research Organization:
- General Atomics, San Diego, CA (United States)
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- AC03-99ER54463
- OSTI ID:
- 805253
- 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
- Country of Publication:
- United States
- Language:
- English
Similar Records
QUIESCENT H-MODE, AN ELM-FREE HIGH-CONFINEMENT MODE ON DIII-D WITH POTENTIAL FOR STATIONARY STATE OPERATION
QUIESCENT DOUBLE BARRIER H-MODE PLASMAS IN THE DIII-D TOKAMAK