Nominal High-Altitude Electromagnetic Pulse (HEMP) Waveforms

摘要

The report explores the maximum early-time, high-altitude electromagnetic pulse, referred to as HEMP E1, using unclassified, published gamma-ray spectra, and a fixed time dependence for gamma-ray rate. The report shows how predicted HEMP E1 varies with yield, gamma spectrum, height of burst, and latitude. The report provides calculated maximum incident HEMP E1 as a function of yield.