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Proceedings Paper

Development of new x-ray still-image detector 'XTV-PROM'
Author(s): Yukihisa Osugi; Akihiko Honda; Shoji Tange; Shuhei Toyoda; Takumi Minemoto
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Paper 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.

Paper Details

Date Published: 3 February 1993
PDF: 8 pages
Proc. SPIE 1736, X-Ray Detector Physics and Applications, (3 February 1993); doi: 10.1117/12.140466
Show Author Affiliations
Yukihisa Osugi, NGK Insulators, Ltd. (Japan)
Akihiko Honda, NGK Insulators, Ltd. (Japan)
Shoji Tange, NGK Insulators, Ltd. (Japan)
Shuhei Toyoda, NGK Insulators, Ltd. (Japan)
Takumi Minemoto, Kobe Univ. (Japan)

Published in SPIE Proceedings Vol. 1736:
X-Ray Detector Physics and Applications
Richard B. Hoover, Editor(s)

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