Color Imaging of Shock Front Emergence in TNT

Abstract

This report describes the use of high speed color digital optical imaging of light emission at the shock/detonation front to determine the planarity (or lack thereof) of a detonation wave produced in an explosive sample using a 4-inch diameter plane wave generator (lens). A high speed, color digital framing camera (Cordin Company Model 570) was used to record images of detonation front emergence from samples of the solid high explosive TNT (trinitrotoluene, C7H5N3O6). Frame-by-frame images of the event are deconstructed into red, green, and blue matrices used by the digital camera system to produce color images. CTH-based calculations (CTH-based calculations (a hydrodynamic computer code developed at Sandia National Laboratories), predicting the spatial profile of the shock/detonation front as it emerges from the solid explosive surface, are compared with bandwidth-specific contour maps made using the color matrices. The correlation between contour maps of light emission at different bandwidths and predicted shock/detonation profiles is discussed.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2012
Accession Number
ADA566913

Entities

People

  • Gerrit Sutherland
  • Kevin L. McNesby
  • Richard Benjamin

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Counter IED
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Gaps
  • Cameras
  • Detonations
  • Digital Images
  • Emission
  • Explosions
  • Explosives
  • Generators
  • Image Processing
  • Materials
  • Photography
  • Plane Waves
  • Shock Waves
  • Signal Processing
  • Simulations
  • Tnt
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Human-Computer Interaction (HCI).
  • Image Processing and Computer Vision.