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Operation DOMINIC. Christmas and Fish Bowl Series. Project Officers Report--Project 7.1. Electromagnetic Signal, Underwater Measurements
KAMAN NUCLEAR COLORADO SPRINGS CO
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This project was conducted to obtain measurements of the electromangetic EM signals from nuclear detonations at large distances from the detonation point, above and beneath the sea surface. The planned use of the data is that of determining the feasibility of an Indirect Bomb Damage Assessment IBDA system based on the nuclear EM signature. The specific tests were conducted from two ships. The EM signatures recorded both above and below the water surface for the various nuclear events are unique, recognizable, and predictable to a useful degree. It appears entirely feasible to utilize this nuclear EM signal as a method of IBDA. The significance of the data presented herein lies primarily in the demonstrated ability to detect an above-water EM signal with an underwater antenna system. Signal characteristics are changed in magnitude and phase but are very easily recognizable with but a minimum of measuring equipment.
APPROVED FOR PUBLIC RELEASE