Tangential 2-D Edge Imaging for GPI and Edge/Impurity Modeling Metadata

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Title

  • Main Title Tangential 2-D Edge Imaging for GPI and Edge/Impurity Modeling

Creator

  • Author: Maqueda, Ricardo
    Creator Type: Personal
  • Author: Levinton, Fred M.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Office of Fusion Energy Sciences.
    Contributor Type: Organization
    Contributor Info: USDOE SC Office of Fusion Energy Sciences (SC-24)

Publisher

  • Name: Nova Photonics, Inc.
    Place of Publication: United States

Date

  • Creation: 2011-12-23

Language

  • English

Description

  • Content Description: Nova Photonics, Inc. has a collaborative effort at the National Spherical Torus Experiment (NSTX). This collaboration, based on fast imaging of visible phenomena, has provided key insights on edge turbulence, intermittency, and edge phenomena such as edge localized modes (ELMs) and multi-faceted axisymmetric radiation from the edge (MARFE). Studies have been performed in all these areas. The edge turbulence/intermittency studies make use of the Gas Puff Imaging diagnostic developed by the Principal Investigator (Ricardo Maqueda) together with colleagues from PPPL. This effort is part of the International Tokamak Physics Activity (ITPA) edge, scrape-off layer and divertor group joint activity (DSOL-15: Inter-machine comparison of blob characteristics). The edge turbulence/blob study has been extended from the current location near the midplane of the device to the lower divertor region of NSTX. The goal of this effort was to study turbulence born blobs in the vicinity of the X-point region and their circuit closure on divertor sheaths or high density regions in the divertor. In the area of ELMs and MARFEs we have studied and characterized the mode structure and evolution of the ELM types observed in NSTX, as well as the study of the observed interaction between MARFEs and ELMs. This interaction could have substantial implications for future devices where radiative divertor regions are required to maintain detachment from the divertor plasma facing components.
  • Physical Description: 143KB

Subject

  • Keyword: Gas Puff Imaging
  • Keyword: Turbulence Gas Puff Imaging
  • STI Subject Categories: 70 Plasma Physics And Fusion Technology
  • Keyword: Simulation
  • Keyword: Closures
  • Keyword: Divertors
  • Keyword: Marfe
  • Keyword: Physics
  • Keyword: Radiations
  • Keyword: Edge Localized Modes
  • Keyword: Plasma

Collection

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

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Report No.: DOE/ER54767-1
  • Grant Number: FG02-04ER54767
  • DOI: 10.2172/1032011
  • Office of Scientific & Technical Information Report Number: 1032011
  • Archival Resource Key: ark:/67531/metadc834342
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