Semiconductor X-ray detector

Details Semiconductor X-ray detector Semiconductor X-ray detector

1978-09-08

1981-02-10

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250370, G01T 120, G01T 122

Patent

active

042503850

ABSTRACT:
In the illustrated embodiments a row of semiconductor diodes is provided with intervening fluorescent layers and with fluorescent layers at the opposite ends. The x-radiation may impinge on one end of the detector such that the additional layers provide increased sensitivity. In a second embodiment, the radiation impinges laterally of the detector so that each fluorescent layer receives an individual sample of the impinging radiation, and the output from respective diodes may be individually stored as a measure of the respective samples. In an illustrated x-ray tomographic apparatus, the edge faces of the fluorescent layers are equidistant from the focus of the x-ray tube so as to sample successive portions of a fan-shaped x-ray beam.

REFERENCES:
patent: 2190200 (1940-02-01), Victoreen
patent: 3612869 (1971-10-01), Baum et al.
patent: 3904879 (1975-09-01), Amigual et al.
patent: 3937965 (1976-02-01), Vasseur
patent: 3940626 (1976-02-01), Hounsfield
patent: 4119841 (1978-10-01), Jantsch et al.

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