Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Patent
1995-06-27
1996-08-20
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
250397, G01T 124, H01J 3704
Patent
active
055481213
ABSTRACT:
An electronically shielded solid state charged particle detector system having enhanced radio frequency interference immunity includes a detector housing with a detector entrance opening for receiving the charged particles. A charged particle detector having an active surface is disposed within the housing. The active surface faces toward the detector entrance opening for providing electrical signals representative of the received charged particles when the received charged particles are applied to the active surface. A conductive layer is disposed upon the active surface. In a preferred embodiment, a nonconductive layer is disposed between the conductive layer and the active surface. The conductive layer is electrically coupled to the detector housing to provide a substantially continuous conductive electrical shield surrounding the active surface. The inner surface of the detector housing is supplemented with a radio frequency absorbing material such as ferrite.
REFERENCES:
patent: 3668400 (1972-06-01), Kozlov
patent: 5065028 (1991-11-01), Cranston et al.
Balmer David K.
Haverty Thomas W.
Nordin Carl W.
Tyree William H.
Chafin James H.
Moser William R.
Nguyen Kiet T.
Ortiz Luis M.
Willis Davis L.
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