Accession Number : ADA009208

Title :   A Calculational Model for High Altitude EMP

Descriptive Note : Master's thesis

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Seiler, Jr, Louis W.

PDF Url : ADA009208

Report Date : MAR 1975

Pagination or Media Count : 60

Abstract : An electromagnetic pulse (EMP) model is developed which allows a quick computation of the time development of the electric fields generated by a high altitude nuclear burst. The model is based on the Karzas-Latter high frequency approximation for high altitude EMP, which describes fields generated by Compton electrons interacting with the earth's magnetic field. The proper choice of a gamma time output function, which can be integrated in closed form, and a small angle approximation, made in the expressions for the Compton currents and air conductivity, eliminate the time consuming numerical integrations usually necessary in EMP models to compute the Compton currents and air conductivity. This results in a considerable savings in computation time. The model is presented in a manner which is simple to use but still allows the variation of the major theoretical parameters in the problem.

Descriptors :   *NUCLEAR EXPLOSIONS, *ELECTROMAGNETIC PULSES, COMPTON SCATTERING, RADIATION EFFECTS, NUMERICAL INTEGRATION, THESES, MAXWELLS EQUATIONS

Subject Categories : Armor
      Nuclear Weapons

Distribution Statement : APPROVED FOR PUBLIC RELEASE