The Effect of Joint and Gaps on Shock Propagation Metadata

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Title

  • Main Title The Effect of Joint and Gaps on Shock Propagation

Creator

  • Author: Caldwell, S. E.
    Creator Type: Personal
  • Author: Goldman, S. R.
    Creator Type: Personal
  • Author: Wilke, M. D.
    Creator Type: Personal
  • Author: Wilson, D. C.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)

Publisher

  • Name: Los Alamos National Laboratory
    Place of Publication: New Mexico
    Additional Info: Los Alamos National Lab., NM (United States)

Date

  • Creation: 1997-12-31

Language

  • English

Description

  • Content Description: National Ignition Facility targets, especially those made with material such as beryllium through which hydrogen doesn`t permeate, may be made in sections and pieced together. Tolerances, chamfers, glue joints and fill tubes will form density mismatches which may lead to asymmetries in the capsule implosion. Such defects or perturbations also form non-linear initial conditions of interest for hydrodynamic evolution. The physics of this process is being studied in planar packages in indirect drive. Ablation driven shock waves, similar to those produced by the foot of the NIF pulse, are generated from Nova hohlraum radiation. Time resolved radiography is used to study the propagation of non-planar shock waves through a uniform material and across material interfaces in order to examine the stability of the interface. We will compare shocks propagating around `gaps` and through `joints` with two-dimensional numerical simulations in planar geometry.
  • Physical Description: 36 p.

Subject

  • Keyword: Laser Targets
  • Keyword: Ablation
  • Keyword: Hydrodynamics
  • Keyword: Joints
  • Keyword: Interfaces
  • STI Subject Categories: 70 Plasma Physics And Fusion
  • Keyword: Us National Ignition Facility
  • Keyword: Asymmetry
  • Keyword: Nova Facility
  • Keyword: Wave Propagation
  • Keyword: Hydrogen
  • Keyword: Shock Waves
  • Keyword: Defects
  • Keyword: Beryllium

Source

  • Conference: 27. annual anomalous absorption conference, Vancouver (Canada), Jun 1997

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

  • Other: DE97008836
  • Report No.: LA-UR--97-2444
  • Report No.: CONF-9706168--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 627131
  • Archival Resource Key: ark:/67531/metadc691215

Note

  • Display Note: OSTI as DE97008836
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