3 February 1993 Development of new x-ray still-image detector 'XTV-PROM'
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Abstract
A new type of x-ray real time still image detector named `X ray to Visible Light PROM (XTV-PROM)' has been developed. XTV-PROM consists of a thin Bi12SiO20 (BSO) single crystal plate, transparent insulating layers, and two electrodes on both faces of the crystal plate. One electrode is transparent and the other refracts readout lights and lets in x rays. Several tens of keV x rays generate electron-hole pairs in the crystal and an x-ray image is recorded as a charge pattern. A voltage pattern generated from the charge pattern causes the Pockels effect and the recorded x-ray image is converted to the visible light image using the effect of the crystal. The recorded image can be erased and the device can be used repeatedly. The XTV-PROM with a large active area (18 X 18 mm2) and high resolution (25 micrometers ) has been made by a new process for polishing BSO crystal thinly. The XTV-PROM has a good response for bremsstrahlung x rays higher than 30 keV.
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Yukihisa Osugi, Yukihisa Osugi, Akihiko Honda, Akihiko Honda, Shoji Tange, Shoji Tange, Shuhei Toyoda, Shuhei Toyoda, Takumi Minemoto, Takumi Minemoto, } "Development of new x-ray still-image detector 'XTV-PROM'", Proc. SPIE 1736, X-Ray Detector Physics and Applications, (3 February 1993); doi: 10.1117/12.140466; https://doi.org/10.1117/12.140466
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