The DIRECT COURSE-TRINITY Seismic Experiment.

Abstract

The proximity of the DIRECT COURSE test site to the TRINITY site where the first atomic bomb was detonated in July 1946 offered a unique opportunity to compare the unusual appearing seismic waves recorded on the TRINITY event with those excited by DIRECT COURSE. Two of the Leet Seismographs used to record the 1945 TRINITY event were obtained and fielded on DIRECT COURSE alongside modern digital instrumentation in an effort to verify the TRINITY seismograms. Good records wer ebtained from one of the Leet instruments and from most of the digital instrumentation. Comparison between the Leet records and the digital seismograms indicates that the hydrodynamic wave, first observed at TRINITY, is real and not an instrument phenomenon. Keywords: Seismic signals; High-explosive tests; Surface waves; Body waves; Source functions; Modeling; Waveforms.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1986
Accession Number
ADA169555

Entities

People

  • Robert E. Reinke

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Counter IED
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Arrays
  • Classification
  • Explosions
  • Explosives
  • Frequency
  • Governments
  • High Explosives
  • Instrumentation
  • Linear Arrays
  • Rayleigh Waves
  • Recording Systems
  • Seismic Waves
  • Seismographs
  • Seismometers
  • Surface Waves
  • Waveforms

Fields of Study

  • Environmental science

Readers

  • Explosive Engineering.
  • Political Violence and Terrorism Studies.
  • Seismology