SEMICONDUCTOR XXRAY DETECTOR FOR USE IN XXRAY EXPOSURE CONTROL DEVICE

摘要

PURPOSE:To prevent the shadow of the detector itself from appearing on the subsequent films by constituting specifically the thickness of an X-ray detecting element, the thickness of an electrode lead-out wire and the configuration of a mount base. CONSTITUTION:A semiconductor X-ray detecting element 41, is mounted on a mount base 44 formed in a substantially ring shape, and an electrode is fitted to cover its rear back surface. The X-ray detecting element 41 which is unitarily mounted on the mount base 44 is fitted and fixed in a hole formed in the stationary plate 42, and electrode lead out wires 431 and 432 are arranged. The thickness of the X-ray detecting element 41 is converted into 100-800mum in the terms of aluminum relating to the X-ray damping and electrode lead out wires 431 and 432 are formed by an aluminum film of 40mum or less of thickness. Furthermore, the outer peripheral part of the mount base 44, that is, the fitting part with the stationary plate 42 and its inner peripheral part thereof are tapered.