Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1977-06-13
1978-08-15
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250485, 250487, G01T 120
Patent
active
041075340
ABSTRACT:
A detector probe for a scintillation detection instrument having a photomultiplier within a housing with an europium activated scintillation crystal positioned adjacent the face plate of the photomultiplier. A thin sheet of foil is spaced from the front of the scintillation crystal. The outer surface of the photomultiplier, except for the face plate, and the peripheral surface of the scintillation crystal are coated with a layer of highly reflective paint. The surface of the scintillation crystal facing the aluminum sheet is course ground and the inner surface of an annular spacer between the scintillation crystal and the surface of the aluminum sheet facing the scintillation crystal are coated with a highly reflective paint to provide an air filled light guide diffuser in front of the scintillation crystal. A layer of styrofoam is provided adjacent the aluminum sheet to protect against thermal and mechanical shock. The forward end of the housing is sealed with a protective layer to prevent radioactive contamination.
REFERENCES:
patent: 3917950 (1975-11-01), Carlson
Killoren Richard J.
Rusz Joseph E.
Willis Davis L.
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