Radiographic apparatus and radiation detection signal processing method

Abstract

Corrected X-ray detection signals are obtained by removing lag-behind parts through a recursive computation based on initial values determined from lag signal value (step T 2). Thus, the lag-behind parts can be removed by taking into consideration lag signal values remaining at a starting point of the recursive computation. The lag signal values are dependent on the characteristic of an FPD (flat panel X-ray detector). By removing the lag-behind parts, with the lag signal values taken into consideration, the lag-behind parts are removed from X-ray detection signals with increased accuracy, without being influenced by the characteristic of the FPD.

Description

technical field [0001] The present invention relates to a radiographic apparatus for medical or industrial use and a radiation detection signal processing method for outputting radiation at predetermined sampling time intervals from a radiation emitting device when radiation is emitted to a subject. The radiation detection signal obtains a radiographic image. More specifically, the present invention relates to a technique for eliminating a time lag of a radiation detection signal output from the radiation detection device caused by the radiation detection device. Background technique [0002] In recent years, in medical X-ray diagnostic equipment as an example of a typical radiography equipment, a flat panel X-ray detector (hereinafter referred to as "FPD") has been used for detecting X-rays of a patient generated by X-rays emitted from an X-ray tube. X-ray inspection device for radiation penetration images. The FPD includes a plurality of semiconductor or other X-ray dete...

AI Technical Summary

Problems solved by technology

In this case, the prior art disclosed in Japanese Unexamined Patent Publication No. 2004-242741 cannot deal with the problem

A sensor with poor hysteresis characteristics is then unacceptable and must be rejected

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