The PHARO Code.

Abstract

The PHARO code predicts the visible and infrared radiative output of high altitude nuclear bursts. Using the results of the large scale NRL hydrocodes, both the spatial and temporal variation of the radiation (watts sq.cm.sr) in arbitrary wavelength intervals is determined. The results are a series of 'isophot' plots for arbitrarily placed cameras or sensors which can be directly compared with experiment. In addition to monitoring the important line and band transitions the bound-bound, free-bound, and free-free radiation is calculated for a recombining oxygen plasma. In particular, the bound-bound radiation does not assume a Saha population of excited levels but calculates this radiation as a function of electron temperature and density and ground state density. Comparisons with representative high altitude data are exhibited. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 24, 1981
Accession Number
ADA107918

Entities

People

  • E. Hyman
  • M. Mulbrandon
  • Sidney L. Ossakow

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Communication Systems
  • Department Of Defense
  • Detectors
  • Electrons
  • Geometry
  • Ground State
  • High Altitude
  • Intervals
  • Line Of Sight
  • Measurement
  • Physics Laboratories
  • Radiation
  • Security
  • Three Dimensional
  • Two Dimensional
  • Warning Systems

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Pulsed Power and Plasma Physics.
  • Spectroscopy.

Technology Areas

  • Microelectronics