A device for eliminating charge sharing and a pixel detection system

Abstract

The invention discloses a device for eliminating charge sharing and a pixel detection system. The device for eliminating charge sharing includes: a front circuit, a maximum logic circuit, a summation threshold circuit, an arbitration logic circuit and a counting circuit; The output signal generates the discrimination signal of the central pixel; the maximum logic circuit is used to compare the discrimination signal of the central pixel with the discrimination signals of the adjacent west, north and northwest three pixels of the central pixel to determine the maximum value signal of the central pixel; sum The over-threshold circuit is used to sum the discrimination signal of the center pixel and the discrimination signals of the three pixels adjacent to the west, north and northwest of the center pixel and then compare it with the global threshold to obtain the sum over-threshold signal of the center pixel; the arbitration logic circuit is used Based on the arbitration judgment, an arbitration signal is obtained; the counting circuit is used to determine whether to add one according to the arbitration signal, so as to eliminate charge sharing and improve the detection efficiency of the pixel detection system.

Description

technical field [0001] The present invention relates to the technical field of charge sharing, and in particular, to a device for eliminating charge sharing and a pixel detection system. Background technique [0002] The detector is a set of signal acquisition system composed of a special sensor array and its circuit. As a device for acquiring new particle information generated by particle reaction, it has a wide range of applications in the field of high energy physics. Among the current mainstream detectors, pixel detectors often play a key role in high-energy physics experimental detection systems due to their good integration and high position resolution. Among them, photon-counting detectors are also widely used in radiation detection and imaging fields other than high-energy physics due to their high count rate and good energy resolution. [0003] The so-called photon counting method is based on the traditional nuclear electronics detection method. The incident signal...

AI Technical Summary

Problems solved by technology

The above two logical arbitrations must cooperate with each other, and neither of them alone can constitute a necessary and sufficient condition for the decision-making of the charge sharing effect

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