Structure, Stability and ELM Dynamics of the H-Mode Pedestal in DIII-D Metadata

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Title

  • Main Title Structure, Stability and ELM Dynamics of the H-Mode Pedestal in DIII-D

Creator

  • Author: Fenstermacher, M. E.
    Creator Type: Personal
  • Author: Leonard, A. W.
    Creator Type: Personal
  • Author: Osborne, T. H.
    Creator Type: Personal
  • Author: Snyder, P. B.
    Creator Type: Personal
  • Author: Thomas, D. M.
    Creator Type: Personal
  • Author: Boedo, J. A.
    Creator Type: Personal
  • Author: Casper, T. A.
    Creator Type: Personal
  • Author: Colchin, R. J.
    Creator Type: Personal
  • Author: Groebner, R. J.
    Creator Type: Personal
  • Author: Groth, M.
    Creator Type: Personal
  • Author: Kempenaars, M. H.
    Creator Type: Personal
  • Author: Loarte, A.
    Creator Type: Personal
  • Author: Saibene, G.
    Creator Type: Personal
  • Author: VanZeeland, M. A.
    Creator Type: Personal
  • Author: Zeng, L.
    Creator Type: Personal
  • Author: Xu, X. Q.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: US Department of Energy (United States)

Publisher

  • Name: Lawrence Livermore National Laboratory
    Place of Publication: Livermore, California
    Additional Info: Lawrence Livermore National Lab., Livermore, CA (United States)

Date

  • Creation: 2004-10-13

Language

  • English

Description

  • Content Description: Experiments are described that have increased understanding of the transport and stability physics that set the H-mode edge pedestal width and height, determine the onset of Type-I edge localized modes (ELMs), and produce the nonlinear dynamics of the ELM perturbation in the pedestal and scrape-off layer (SOL). Predictive models now exist for the n{sub e} pedestal profile and the p{sub e} height at the onset of Type-I ELMs, and progress has been made toward predictive models of the T{sub e} pedestal width and nonlinear ELM evolution. Similarity experiments between DIII-D and JET suggested that neutral penetration physics dominates in the relationship between the width and height of the n{sub e} pedestal while plasma physics dominates in setting the T{sub e} pedestal width. Measured pedestal conditions including edge current at ELM onset agree with intermediate-n peeling-ballooning (P-B) stability predictions. Midplane ELM dynamics data show the predicted (P-B) structure at ELM onset, large rapid variations of the SOL parameters, and fast radial propagation in later phases, similar to features in nonlinear ELM simulations.
  • Physical Description: PDF-FILE: 14 ; SIZE: 2.2 MBYTES pages

Subject

  • Keyword: Thermonuclear Reactors
  • Keyword: Iaea
  • STI Subject Categories: 70 Plasma Physics And Fusion Technology
  • Keyword: Doublet-3 Device
  • Keyword: Transport
  • Keyword: Physics
  • Keyword: Edge Localized Modes
  • Keyword: Stability
  • Keyword: Sols
  • Keyword: Plasma

Source

  • Conference: Presented at: 20th IAEA Fusion Energy Conference, Vilamoura (PT), 11/01/2004--11/06/2004

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: UCRL-CONF-207227
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 15011398
  • Archival Resource Key: ark:/67531/metadc1408053
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