Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1985-05-03
1988-02-16
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
2505051, 378 19, 378147, G01T 120
Patent
active
047257342
ABSTRACT:
A radiation-detecting device for computed tomography, wherein a plurality of scintillation elements are linearly arranged with a collimator plate interposed between the respective units thereof; an outermost collimator plate is set outside of each terminal unit of said linearly arranged scintillation elements; the scintillation elements are adhered to the surface of a semiconductor substrate on which a plurality of photodiode elements are mounted. The scintillation element emits a light upon receipt of X-rays. The light beams emitted from the scintillation elements and collected by the collimtor plates are detected by the photodiode elements. The outermost collimator plate is made thicker than the collimator plate interposed between the adjacent scintillation elements. Namely, the outermost collimator plate has a thickness of, for example, 0.2 mm, though the collimator plate interposed between the adjacent scintillation elements has a thickness of 0.1 mm. The respective detectors comprising a plurality of scintillation elements and collimator plates are set apart from each other at a clearance of, for example, 0.13 mm, thereby ensuring a substantial accord between the X-ray detecting property of the outermost scintillation elements and other intervening scintillation elements.
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Howell Janice A.
Kabushiki Kaisha Toshiba
Porta David P.
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