Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1988-06-20
1989-09-26
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250366, 250367, 25037009, 25037011, G01T 1202
Patent
active
048702790
ABSTRACT:
An imaging X-ray sensor is composed of a linear array of microscopically small bars of polycrystalline ceramic scintillator material bonded at the bar ends to an integrated circuit photodetector array. The scintillator bars are the basic resolution elements of the detector and are less than 50 microns in width. Each bar produces a flash of light with intensity related to the X-ray flux penetrating the bar. A reflective coating covering five surfaces of the bars isolates each detector element and channels the light into the photodetector bonded to one end of the bar. A method of fabricating the detector array utilizes the machineability and good mechanical strength of scintillators such as rare earth oxides doped with rare earth activators.
REFERENCES:
patent: 4421671 (1983-12-01), Cusano et al.
patent: 4525628 (1985-06-01), DiBianca et al.
patent: 4560877 (1985-12-01), Hoffman
patent: 4560882 (1985-12-01), Barbaric et al.
patent: 4725734 (1988-02-01), Nishiki
B. P. Flannery et al, "Three-Dimensional X-Ray Microtomography", Science, 237, Sep. 1987, 1439-1444.
Cueman Michael K.
Greskovich Charles D.
Thomas, III Lewis J.
Trzaskos Casmir R.
Campbell Donald R.
Davis Jr. James C.
Fields Carolyn E.
General Electric Company
Webb II Paul R.
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