A Photon Counting Imaging Detector

An imaging detector and photon counting technology, applied in the direction of instruments, etc., can solve the problems of slow time response, inability to provide photon arrival time information, affecting the signal-to-noise ratio of charge signal measurement and time response speed, etc.

CN110361100BActive Publication Date: 2020-10-13CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-10-13

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The photon counting imaging detector provided by the present invention includes a plurality of stacked microchannel plates, a position-coded anode located under the microchannel plate, and the position-coded anode includes a position-coded anode electron group receiving layer, a position-coded anode charge A sensing layer and a position-coding anode capacitance conducting layer, between the position-coding anode electron group receiving layer and the position-coding anode charge-sensing layer and between the position-coding anode charge-sensing layer and the position-coding anode capacitance conducting layer All are provided with an insulating medium, and the microchannel plate, the position-coded anode electron group receiving layer, the position-coded anode charge sensing layer and the position-coded anode capacitance conduction layer are all set in a vacuum chamber. Photon counting imaging detectors can simultaneously achieve high imaging resolution and high photon count rate.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of imaging detection of weak and extremely weak targets, in particular to a photon counting imaging detector. Background technique

[0002] In important fields such as space astronomy, particle detection, and bioluminescent imaging, researchers have more and more demands for the detection of weak targets or particles, and are becoming more and more urgent. Imaging of such targets requires the use of photon-counting-based imaging detectors. The photon counting imaging detector can record the spatial position information of a single photon or charged particle, and realize the detection of the target radiation by counting and accumulating. It has the advantages of ultra-low noise and ultra-high sensitivity, and can image and detect faint targets through long-term photon counting imaging.

[0003] The photon counting imaging detector is generally composed of a photoelectric conversion-electron multiplication m...

Examples

Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see figure 1 , is a schematic structural diagram of a photon counting imaging detector 100 provided in an embodiment of the present invention, including: a plurality of stacked microchannel plates 110, a position coding anode 120 located below the microchannel plate 110, and the position coding anode 120 includes a position coding anode electron group receiving layer 121, a position coding anode charge sensing layer 122 and a position coding anode capac...