Multi-photon imaging detection system based on three-anode photon counting

By combining a tri-anode structure with a position readout circuit, high temporal and spatial resolution multiphoton imaging detection is achieved, solving the position ambiguity problem of synchronous photon incident events in existing technologies, and making it suitable for imaging ultrafast photon events.

CN122171022BActive Publication Date: 2026-07-21CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Filing Date
2026-05-09
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing cross-strip anode photon counting imaging detectors have shortcomings in high temporal resolution applications and synchronous event detection. They cannot simultaneously achieve high spatial resolution and high count rate, and there is a problem of ambiguity in the position resolution of synchronous photon incident events.

Method used

The system employs a three-anode structure, with cross-shaped anodes responsible for high spatial resolution position measurement and arrayed anodes responsible for high-precision time measurement. Combined with a position readout circuit and a computer system, the arrayed anodes measure time information and match it with position information. The arrayed anodes are used as tag areas to distinguish multiple photons arriving synchronously, thus eliminating position ambiguity.

Benefits of technology

It achieves simultaneous detection with high temporal and spatial resolution, accurately identifies and locates synchronous photon incident events, completely solves the problem of position ambiguity, and is suitable for imaging ultrafast photon events.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122171022B_ABST
    Figure CN122171022B_ABST
Patent Text Reader

Abstract

The application relates to the field of photon imaging detection, in particular to a multi-photon imaging detection system based on three-anode photon counting, which comprises a sealed tube imaging detector and a position reading circuit, the sealed tube imaging detector comprises an incident window plated with a photocathode, a micro-channel plate stack and three anodes, the crossed strip anode in the three anodes is matched with a multi-channel preamplification and shaping circuit, a multi-channel analog-digital conversion circuit and a microprocessor in the position reading circuit to detect the incident position of a photon; the array anode in the three anodes is matched with a multi-channel amplification discriminator circuit and a time measurement circuit in the position reading circuit to detect the arrival time of the photon; a synchronous control circuit is used for realizing synchronous control of the clock of all the circuits, and matching of the incident position and the arrival time of the photon. The application separates the position measurement and the time measurement functions through a physical structure, realizes high time resolution while retaining high spatial resolution, and solves the position ambiguity problem of multiple synchronous photon incidence.
Need to check novelty before this filing date? Find Prior Art