Accession Number : ADA956082

Title :   Electromagnetic Pulse Interaction Close to Nuclear Bursts and Associated EMP Environment Specification,

Corporate Author : AIR FORCE WEAPONS LAB KIRTLAND AFB NM

Personal Author(s) : Baum, Carl E.

Report Date : 02 JUL 1971

Pagination or Media Count : 44

Abstract : In an EMP source region the interaction process is rather complex because of the presence of source currents and a time-varying and nonlinear medium. The most basic electromagnetic interaction processes for electrically small objects are their electric and magnetic dipole characteristics. Associated with such dipoles are four basic electromagnetic quantities: magnetic field, voltage density, electric field, and total current density which can be conveniently separated into a source current density and an electric-field-associated current density. All of these quantities are important for the lowest order kinds of EMP interaction, i.e. dipole interaction. All of these should be specified for an EMP environment specification, and all their important features should be included in the specification. Certain other secondary quantities such as conductivity and ionization rate as well as other features of the nuclear radiation should also be specified. Going beyond the simple dipole model one can study detailed interaction in EMP source regions by means of canonical problems involving simplified object geometries which retain various important features of the geometries of real objects of interest.

Descriptors :   CURRENT DENSITY, CURRENTS, DENSITY, DIPOLES, ELECTRIC FIELDS, ELECTRICAL PROPERTIES, ELECTRICITY, ELECTROMAGNETIC PULSES, ELECTROMAGNETIC RADIATION, ELECTROMAGNETISM, ENVIRONMENTS, INTERACTIONS, IONIZATION, MAGNETIC DIPOLES, MAGNETIC FIELDS, MAGNETIC PROPERTIES, NONLINEAR SYSTEMS, NUCLEAR EXPLOSIONS, NUCLEAR RADIATION, QUANTITY, RATES, REGIONS, SECONDARY, SIMPLIFICATION, SOURCES, SPECIFICATIONS, VOLTAGE.

Subject Categories : Electromagnetic Pulses
      Nuclear Explosions and Devices(non-military)

Distribution Statement : APPROVED FOR PUBLIC RELEASE