Large Aperture Electrostatic Dust Detector Metadata

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Title

  • Main Title Large Aperture Electrostatic Dust Detector

Creator

  • Author: Skinner, C. H.
    Creator Type: Personal
  • Author: Hensley, R.
    Creator Type: Personal
  • Author: Roquemore, A. L.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Office of Science.
    Contributor Type: Organization

Publisher

  • Name: Princeton University. Plasma Physics Laboratory.
    Place of Publication: Princeton, New Jersey
    Additional Info: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Date

  • Creation: 2007-10-09

Language

  • English

Description

  • Content Description: Diagnosis and management of dust inventories generated in next-step magnetic fusion devices is necessary for their safe operation. A novel electrostatic dust detector, based on a fine grid of interlocking circuit traces biased to 30 or 50 ν has been developed for the detection of dust particles on remote surfaces in air and vacuum environments. Impinging dust particles create a temporary short circuit and the resulting current pulse is recorded by counting electronics. Up to 90% of the particles are ejected from the grid or vaporized suggesting the device may be useful for controlling dust inventories. We report measurements of the sensitivity of a large area (5x5 cm) detector to microgram quantities of dust particles and review its applications to contemporary tokamaks and ITER.

Subject

  • Keyword: Dust Diagnostics
  • Keyword: Dusts
  • Keyword: Management
  • Keyword: Electrical Faults
  • Keyword: Electrostatics
  • STI Subject Categories: 70 Plasma Physics And Fusion Technology
  • Keyword: Apertures
  • Keyword: Dust Particles
  • Keyword: Plasma
  • Keyword: Tokamaks, Nstx
  • Keyword: Detection
  • Keyword: Diagnosis
  • Keyword: Tokamaks, Nstx
  • Keyword: Inventories
  • Keyword: Physics
  • Keyword: Sensitivity Dust Diagnostics

Source

  • Conference: Thirty-Fourth EPS Conference on Plasma Physics, 2–6 July 2007, Warsaw, Poland.

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.: PPPL-4266
  • Grant Number: DE-ACO2-76CHO3073
  • Office of Scientific & Technical Information Report Number: 961740
  • Archival Resource Key: ark:/67531/metadc927752
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