Photon detection system based on discrete wedge strip anode
By dividing the wedge-shaped or strip-shaped anode of the four-electrode WSA or TWA anode into independent wedges and strips and connecting them to independent circuits, the problem that existing detectors cannot detect multiple synchronous photons is solved, achieving higher count rates and spatial resolution.
CN122149661AActive Publication Date: 2026-06-05CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Patent Information
- Application Number
- CN202610624483.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-08
- Publication Date
- 2026-06-05
- Estimated Expiration
- 2046-05-08
AI Technical Summary
Technical Problem
Existing four-electrode WSA and TWA anode photon counting imaging detectors cannot detect multiple photons arriving simultaneously and have low count rates.
Method used
The existing four-electrode WSA or TWA anode is divided into wedges and strips, which are then connected to independent preamplifier circuits and analog-to-digital converters. The two-dimensional coordinates of the incident photon are obtained through a four-wedge strip anode decoding algorithm.
Benefits of technology
It can detect multiple photons arriving simultaneously, which improves the detector's counting rate, reduces electronic noise, and improves spatial resolution.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of single-photon imaging detection, and particularly relates to a photon detection system based on a discrete wedge strip anode, which comprises a window plated with a photoelectric cathode, a vacuum sealing tube formed by a micro-channel plate stack and a germanium film plated substrate, the discrete wedge strip anode arranged outside the vacuum sealing tube, and a signal processor. Wedges or strips formed by connecting existing four-electrode wedge-strip-shaped anodes or four-wedge-shaped anodes together are divided to form independent wedges and strips, then each wedge and strip is connected to an independent pre-amplification circuit, and coordinates of incident photons are obtained through a decoding algorithm of the four-electrode wedge-strip-shaped anodes or the four-wedge-shaped anodes. The wedge and the strip are independent, so that a plurality of incident photons which synchronously arrive can be detected in the direction perpendicular to the wedge or the strip, and meanwhile, the counting rate of the detector is also improved.
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