Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1997-11-21
2000-08-29
Ham, Seungsook
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
G01T 120, G01T 1164
Patent
active
061112577
ABSTRACT:
A gamma camera includes at least one detector assembly 10. The detector assembly includes an array of photomultiplier tubes, a sheet of scintillating crystal material, a sheet of optical glass, and a matrix of mu-metal material. The mu-metal matrix defines an array of apertures corresponding to the array of photomultiplier tubes into which apertures the photomultiplier tubes are inserted. The scintillating crystal is bonded to the first surface of the optical glass. The mu-metal matrix is connected to the second surface of the sheet of optical glass using an adhesive such as an epoxy cement. By integrating the metal matrix into the structure formed by the glass sheet and the crystal, the glass sheet may be made thinner than before while the crystal is supported against possible bending and consequent fracture.
Leichliter John R.
Shand Dennis C.
Valentino Frank C.
Fry John J.
Gurin Timothy B.
Ham Seungsook
Hanig Richard
Picker International Inc.
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