Optical potting of solid-state detector cells

Details Optical potting of solid-state detector cells Optical potting of solid-state detector cells

1982-08-25

1985-01-01

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250367, 250368, 250370, G01T 120

Patent

active

044917325

ABSTRACT:
In a modular solid state detector of the type including a scintillator and diodes for converting x-ray flux to a measurable electrical signal, the diodes are mounted out of the path of incident x-radiation to minimize noise and to limit degradation. The resulting configuration reduces efficiency because the active diode area is limited and the length of the light path between the scintillator and diode is increased. In order to compensate for that reduction in efficiency, optical potting material is used to join the scintillator to the diodes in order to minimize light attenuation between those elements. In addition, the outer surface of the cured optical potting material is coated with a thin specular layer of silver to keep the light within the optical potting material and thus most efficiently reflected from the scintillator to the diode.

REFERENCES:
patent: 4187427 (1980-02-01), Cusano
patent: 4323778 (1982-04-01), Wykes et al.
patent: 4417144 (1983-11-01), Hoffman et al.

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