X-ray imaging to characterize MeV electronics propagation through plastic targets Metadata

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Title

  • Main Title X-ray imaging to characterize MeV electronics propagation through plastic targets

Creator

  • Author: Key, M H
    Creator Type: Personal
  • Author: Stephens, R B
    Creator Type: Personal
  • Author: Koch, J
    Creator Type: Personal
  • Author: Pennington, D
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Office of the Assistant Secretary for Defense Programs.
    Contributor Type: Organization
    Contributor Info: USDOE Office of Defense Programs (DP) (United States)

Publisher

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

Date

  • Creation: 1999-09-03

Language

  • English

Description

  • Content Description: A high intensity laser pulse incident on an overdense plasma generates high energy electrons at the critical surface which propagate into the plasma. The details of this propagation is critical to the Fast Ignition process. The energetic electrons emerge as a jet on the far side, but the spread and propagation direction of the jet within the plasma is not well known. By embedding several thin high Z layers in a CH film one can directly image the progress of the electron beam. It loses enough energy to heat the medium through which it travels to hundreds of eV. At that temperature a film, even buried under CH, emits sufficiently hard thermal x-rays to allow imaging the heated area with an x-ray pinhole camera. The film can be thin enough to also see the emissions from another layer near the front of the film. If these two images are visible simultaneously, one can measure the beam spread and propagation direction within the plastic.
  • Physical Description: 782 Kilobytes pages

Subject

  • Keyword: Tail Electrons
  • Keyword: Plastics
  • Keyword: Hard X Radiation
  • STI Subject Categories: 70 Plasma Physics And Fusion Technology
  • Keyword: Laser Radiation
  • Keyword: Icf Devices
  • Keyword: Electron Beams
  • Keyword: Targets
  • Keyword: Ignition
  • Keyword: Plasma Density
  • Keyword: Flow Visualization

Source

  • Conference: First International Conference on Inertial Fusion Sciences and Applications, Bordeaux (FR), 09/12/1999--09/17/1999

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-JC-135478
  • Report No.: DP021000
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 14596
  • Archival Resource Key: ark:/67531/metadc623302