Doppler electron velocimetry : notes on creating a practical tool. Metadata

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Title

  • Main Title Doppler electron velocimetry : notes on creating a practical tool.

Creator

  • Author: Reu, Phillip L.
    Creator Type: Personal
  • Author: Milster, Tom (University of Arizona)
    Creator Type: Personal

Contributor

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

Publisher

  • Name: Sandia National Laboratories
    Place of Publication: United States

Date

  • Creation: 2008-11-01

Language

  • English

Description

  • Content Description: The Doppler electron velocimeter (DEV) has been shown to be theoretically possible. This report attempts to answer the next logical question: Is it a practical instrument? The answer hinges upon whether enough electrons are available to create a time-varying Doppler current to be measured by a detector with enough sensitivity and bandwidth. The answer to both of these questions is a qualified yes. A target Doppler frequency of 1 MHz was set as a minimum rate of interest. At this target a theoretical beam current signal-to-noise ratio of 25-to-1 is shown for existing electron holography equipment. A detector is also demonstrated with a bandwidth of 1-MHz at a current of 10 pA. Additionally, a Linnik-type interferometer that would increase the available beam current is shown that would offer a more flexible arrangement for Doppler electron measurements over the traditional biprism.
  • Physical Description: 63 p.

Subject

  • Keyword: Signal-To-Noise Ratio
  • Keyword: Doppler Radar.
  • Keyword: Electron Beams -Measurement
  • Keyword: Sensitivity
  • STI Subject Categories: 47 Other Instrumentation
  • Keyword: Doppler Effect
  • Keyword: Electron Beams
  • Keyword: Laser Doppler Velocimeter.
  • Keyword: Design Doppler Radar.
  • Keyword: Velocimeters
  • Keyword: Interferometers
  • Keyword: Beam Currents

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.: SAND2008-6968
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/943861
  • Office of Scientific & Technical Information Report Number: 943861
  • Archival Resource Key: ark:/67531/metadc896261
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