SPECTRAL DISTRIBUTION OF IRRADIANCE WITH HIGH TIME RESOLUTION

Abstract

A multichannel recording spectrometer with high time resolution in the spectral range of 2,500 to 25,000 A was used to measure the spectral distribution of the irradiance as a function of time received at two locations for Shot Cherokee and at one location for Shot Zuni. Due to a large drop error, the point of detonation occurred outside of the field of view of both instruments on Cherokee. The spectral distribution of the irradiance received at the time of the second maximum for Shot Zuni showed that a large portion of the energy was in the infrared region of the spectrum. The distributions at other times are not reported, since the irradiance levels were much lower than expected because of considerable cloud obscuration of the Fireball. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 25, 1958
Accession Number
AD0362108

Entities

People

  • W. B. Plum
  • W. J. Parker

Organizations

  • Naval Radiological Defense Laboratory

Tags

DTIC Thesaurus Topics

  • Detonations
  • Diffraction
  • Explosions
  • Instrumentation
  • Multichannel
  • Obscuration
  • Spectra
  • Spectrometers

Readers

  • Explosive Engineering.
  • Radar Systems Engineering.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.