Accession Number : ADA314433

Title :   Electromagnetic Transient Fields from Spectrally Finite Exoatmospheric Photon Bursts.

Descriptive Note : Final rept. Jun 95-Jul 96,

Corporate Author : ARMY RESEARCH LAB ADELPHI MD

Personal Author(s) : Levine, Arnold D. ; Rausch, Andre H. ; Chase, Ronald J.

PDF Url : ADA314433

Report Date : SEP 1996

Pagination or Media Count : 12

Abstract : The old problem of electromagnetic transients from exoatmospheric photon bursts has been restudied, by considering the photons to be generated from a spectrally finite source and not a monoenergetic source, as is usually done. Variables in the electromagnetic field equations are obtained by spectral averaging. Stratification of target molecules in the atmosphere leads to stratification of radiation sources. A conducting layer in the lowest strata develops due to high-energy electrons, leading to a reduction in field intensities near the ground.

Descriptors :   *ELECTROMAGNETIC PULSES, TRANSIENTS, ELECTROMAGNETIC FIELDS, INTENSITY, TARGETS, HIGH ENERGY, ELECTRONS, SPECTRA, PHOTONS, STRATIFICATION, COMPTON SCATTERING.

Subject Categories : Electromagnetic Pulses

Distribution Statement : APPROVED FOR PUBLIC RELEASE