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Pixel unit circuit for full information readout and full information readout method

A technology for pixel unit and information readout, applied in the field of pixel detectors, can solve the problem of not realizing the readout of single photon cases, and achieve the effects of non-destructive dynamic detection and high signal-to-noise ratio

Active Publication Date: 2020-06-05
INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is, although the single photon counting mode realizes the detection of single photons, it still does not realize the readout of single photon events

Method used

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  • Pixel unit circuit for full information readout and full information readout method
  • Pixel unit circuit for full information readout and full information readout method
  • Pixel unit circuit for full information readout and full information readout method

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0025] figure 2 It is a structural diagram of a pixel unit circuit of a pixel detector for full information readout in the present invention. The pixel unit circuit sequentially realizes three functions of incident event detection, information separation, and information readout, and the specific realization of each function will be described in turn below.

[0026] like figure 2As shown, the preamplifier 201 and the comparator 203 constitute an incident charge detection unit. This part is generally...

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Abstract

The invention provides a pixel unit circuit of a pixel detector for full information readout and a full information readout method, which realizes non-destructive detection of all key information of an event. Among them, the pixel unit circuit includes: an incident charge detection unit, which converts the incident charge into a digital pulse output, and the bottom width of the digital pulse is proportional to the amount of the incident charge; an information separation unit, which separates the arrival time and charge amount of the incident charge from the digital pulse , and generate the address code of the pixel; the information readout unit, based on the case-driven implementation of data readout, when the pixel unit has incident charge, according to the priority arbitration logic, read the arrival time of the incident charge, the amount of charge, and the address of the pixel coding.

Description

technical field [0001] The invention relates to the field of pixel detectors, in particular to a pixel unit circuit of a pixel detector for full information readout and a full information readout method. Background technique [0002] The pixel readout chip and its pixel unit circuit structure are key components of a pixel detector, especially a hybrid pixel detector. figure 1 is a schematic diagram of the structure of the pixel detector, such as figure 1 As shown, the pixel detector as a whole is generally interconnected by the pixel readout chip 101 and the sensor 102 through a flip-chip solder dot matrix, wherein the sensor 102 completes the detection of the signal, converts the physical event into an electrical signal, and transmits it through the flip-chip solder joint. For the pixel readout chip 101, the pixel readout chip 101 completes the signal processing of the electrical signal, converts it into a digital signal and transmits it to the host computer. [0003] The...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/378
CPCH04N25/75
Inventor 魏微樊磊张杰王铮江晓山刘鹏朱科军
Owner INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI