Charge elimination sharing device and pixel detection system

Abstract

The invention discloses a charge elimination sharing device and a pixel detection system. The charge elimination sharing device comprises a front-end circuit, a maximum logic circuit, a summation over-threshold circuit, an arbitration logic circuit and a counting circuit; the front-end circuit is used for generating a discrimination signal of the central pixel according to a signal output by the chip; the maximum logic circuit is used for comparing the discrimination signal of the central pixel with the discrimination signals of the west pixel, the north pixel and the northwest pixel adjacentto the central pixel to determine a maximum value signal of the central pixel; the summation over-threshold circuit is used for summing the discrimination signal of the central pixel and the discrimination signals of the west pixel, the north pixel and the north pixel adjacent to the central pixel and then comparing the sum with a global threshold to obtain a summation over-threshold signal of thecentral pixel; the arbitration logic circuit is used for arbitration judgment to obtain an arbitration signal; and the counting circuit is used for determining 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 invention relates to the technical field of charge sharing, in particular to a device for eliminating charge sharing and a pixel detection system. Background technique [0002] The detector is a signal acquisition system composed of a special sensor array and its circuit. As a device for obtaining information on new particles produced by particle reactions, it has a wide range of applications in the field of high-energy physics. Among the current mainstream detectors, the pixel detector is often in a key position in the detection system of high-energy physics experiments because of its 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 characteristics. [0003] The so-called photon counting method is based on the traditional nuclear electronics detection method, whic...

AI Technical Summary

Problems solved by technology

The above two logical arbitrations must cooperate with each other, and neither of them alone can c

Images