Radiation detectors

Details Radiation detectors Radiation detectors

1979-07-31

1981-04-07

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

250445T, G01T 118, G01N 2100

Patent

active

042608910

ABSTRACT:
In gas detectors, such as may be used in computerized tomographic (CT) apparatus, it is necessary to provide electrical connections into the pressure vessel. Conventionally, these are by ceramic lead-throughs or similar. As gas detectors require an increasing number of individual detector elements, and therefore internal electrodes, the number of connections required increases and they are more closely spaced. This large number of connections can affect the integrity of the pressure vessel. This invention places a circuit board as a gasket between two parts of the pressure vessel, such as between a chamber and lid, so that conducting tracks on or in the circuit board provide the required connections. The invention is suitable for lead through for pressure vessels other than gas detectors of radiation.

REFERENCES:
patent: 3778614 (1973-12-01), Hounsfield
patent: 3924129 (1975-12-01), LeMay
patent: 4031396 (1977-06-01), Whetten et al.
patent: 4119853 (1978-10-01), Shelley et al.

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