Accession Number:

ADA220513

Title:

A Comparison of the Diffracted Fields as Measured and Predicted for a Totally Reflecting Fence in a Scale Model Test for an EMP Simulator

Descriptive Note:

Final rept. Aug 1988-Jan 1989

Corporate Author:

HARRY DIAMOND LABS ADELPHI MD

Report Date:

1990-02-01

Pagination or Media Count:

25.0

Abstract:

Experiments were conducted to observe and record the effectiveness of a fence acting as an electromagnetic barrier to the field emanating from a horizontally polarized electromagnetic pulse EMP simulator. The experimental results are compared to a theoretical model which predicts the observer height and range dependence of the electric field due to Fresnel diffraction. The comparison reveals good agreement, with typical uncertainties being on the order of 10 percent. Keywords Scale modeling Diffracted field prediction Fresnel diffraction Diffracted field measurements.

Subject Categories:

  • Electromagnetic Pulses

Distribution Statement:

APPROVED FOR PUBLIC RELEASE