Modulated radiation pulse concept for impairing electrical circu

Details Modulated radiation pulse concept for impairing electrical circu Modulated radiation pulse concept for impairing electrical circu

1995-01-31

1997-03-04

Lee, Benny T.

Communications: directive radio wave systems and devices (e.g.,

Radar ew

342 14, 315 541, 315500, 378 1, H04K 300

Patent

active

056084030

ABSTRACT:
An electron beam is generated in a packetized form defined by pulses having a duty cycle of less than 1:1000. Each pulse may have a width of approximately one microsecond (1 .mu.sec.) and may be separated by approximately one (1) second from the next pulse. The electrical beam may be accelerated, preferably linearly. The electrical beam may be modulated at a particular frequency (e.g. 3 gigahertz) by bunching the electrons during the beam acceleration. The electrons may be converted to photons (e.g. X-rays) by directing the electron beam to a target made from a suitable material (e.g. tungsten). The photons are then interacted with the electrical circuitry to produce photoelectrons. The photoelectrons impair the operation of the electronic circuitry by generating an electrical current in the electrical circuitry, generating capacitive charges in the circuitry and generating an electromagnetic field in the vicinity of the circuitry. The electrical circuitry may be disposed within an enclosure substantially impervious to the penetration of external electromagnetic fields, but passing energetic photons (x-rays). The enclosure may resonate at the modulating frequency. This invention is primarily intended to be used for experimental purposes to determine how the electrical circuitry may be protected to prevent the electrical circuitry from being operationally impaired by photons passing to the electrical circuitry.

REFERENCES:
patent: 3761828 (1973-09-01), Pollard et al.
patent: 4329654 (1982-05-01), Chamberlain
patent: 4733133 (1988-03-01), Dondl
patent: 4959559 (1990-09-01), Ziolkowski

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