Protection of a circuit board from high energy electromagnetic radiation

A printed circuit board 20 includes a layer 34 of quantum tunnelling composite that lowers its resistance in response to high energy electromagnetic radiation, connecting circuit elements 22 - 28 together through vias 32 to prevent damage from released charge. When high energy electromagnetic radiat...

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Bibliographic Details
Main Author BRIAN CHARLES HARGRAVE TURTON
Format Patent
LanguageEnglish
Published 18.03.2009
Subjects
APPLICATIONS THEREOF
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DECONTAMINATION ARRANGEMENTS THEREFOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
NUCLEAR ENGINEERING
NUCLEAR EXPLOSIVES
NUCLEAR PHYSICS
PHYSICS
PRINTED CIRCUITS
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT
TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Summary:A printed circuit board 20 includes a layer 34 of quantum tunnelling composite that lowers its resistance in response to high energy electromagnetic radiation, connecting circuit elements 22 - 28 together through vias 32 to prevent damage from released charge. When high energy electromagnetic radiation is not present, the quantum tunnelling composite has high resistance and allows the circuit to operate as usual. The quantum tunnelling composite acts, in the presence of radiation, to short-circuit elements on the PCB before capacitive discharge damages them. A loudspeaker (not shown) may be included to provide vibrations to the quantum tunnelling composite to return it to its insulating state after the radiation exposure has finished, avoiding the tendency for the composite to become latched in the conducting state. The printed circuit board may be used to protect against high energy gamma ray pulses produced by a nuclear explosion.
Bibliography:Application Number: GB20070017876