Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Patent
1996-10-02
1998-09-01
Church, Craig E.
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
378 988, H05G 164
Patent
active
058013857
ABSTRACT:
An X-ray image pickup device has a two-dimensional image reading device which is constituted by two-dimensionally forming a plurality of photoelectric conversion elements on an insulating substrate, and has switching elements in the vicinities of these photoelectric conversion elements, a phosphor which is formed on the two-dimensional image reading device and serves as a wavelength converter for converting X-ray radiation into visible light, and a grid plate which is formed on the phosphor and guides only X-rays from a specific direction toward the phosphor and the two-dimensional image reading device, whereby a next-generation X-ray image pickup device which can improve diagnostic efficiency that cannot be attained by the conventional film method, and has a high space factor and a high S/N ratio that cannot be attained by the CCD method can be provided.
REFERENCES:
patent: 3936645 (1976-02-01), Iversen
patent: 4864594 (1989-09-01), Inbar et al.
Endo Tadao
Kaifu Noriyuki
Kameshima Toshio
Kobayashi Isao
Takeda Shinichi
Canon Kabushiki Kaisha
Church Craig E.
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