X-ray or gamma ray systems or devices – Electronic circuit – With display or signaling
Patent
1999-03-01
2000-11-28
Church, Craig E.
X-ray or gamma ray systems or devices
Electronic circuit
With display or signaling
25037009, 25037011, H05G 164
Patent
active
061545201
ABSTRACT:
An X-ray diagnostic apparatus has an X-ray source that emits a diverging X-ray beam bundle that strikes a planar X-ray image converter at various angles, the converter having a substrate, image elements on the substrate arranged in a matrix with a semiconductor layer and a layer that absorbs X-ray beams. The X-ray-absorbing layer is fashioned thicker in the region at which a perpendicular ray of the X-ray beam bundle strikes the detector than in the region at which an oblique ray strikes, so that the reduction of the modulation transfer function in the region of an oblique beam incidence remains as small as possible.
REFERENCES:
patent: 5528043 (1996-06-01), Spivey et al.
patent: 5570403 (1996-10-01), Yamazaki et al.
Patent Abstracts of Japan, 5 P 541, Application No. 60-41911.
"Das Rontgenfernsehen," Gebauer et al. pp. 26-33.
Hoheisel Martin
Sklebitz Hartmut
Church Craig E.
Siemens Aktiengesellschaft
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