Single-photon detection system

A single-photon detection and single-photon technology, applied in the field of nuclear detection and nuclear electronics, can solve the problems of inability to achieve multi-element or array system integration and optimization, low integration, complex structure, etc., to ensure accuracy and improve integration. , the effect of improving the signal-to-noise ratio

Inactive Publication Date: 2017-05-31
INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

The system has a complex structure, low integration, and simple functions, and cannot realize the integration and optimization of multiple or array systems
In addition, the detection system based on the nuclear electronics plug-in is limited by the electronic time measurement circuit. In a time detection cycle, it can only realize the detection of a single case.
For example, the time-resolved detection system currently used by the American Advanced Light Source (APS) Nuclear Resonance Scattering Experimental Station can only detect one photon after the time measurement trigger signal. If multiple photons reach the detection system, only the first photon will be recorded, and the other photons be ignored

Method used

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Embodiment Construction

[0037] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details being omitted, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solution...

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Abstract

The invention relates to a single-photon nanosecond time resolution detection system, and the system comprises an APD detection module which is used for carrying out the detection of an X-ray single-photon signal and outputting a detection signal; a pre-amplification module which is used for receiving the detection signal outputted by the APD detection module and carrying out the amplification and outputting of the detection signal; and a time measurement and reading module which is used for receiving the detection signal outputted by the pre-amplification module and a triggering signal comprising a start point, and is also used for measuring the time interval between a moment of receiving the detection signal to the start point, and outputting the time interval. The system achieves the high-efficiency detection of continuous X-ray photons after the triggering signal while improving the integration degree and flexibility of the system.

Description

technical field [0001] The present disclosure relates to the technical fields of nuclear detection and nuclear electronics, in particular, to a single-photon nanosecond time-resolved detection system. Background technique [0002] Time-resolved X-ray diffraction is a powerful tool for probing atomic dynamics and transient structures of biomacromolecules. Observation of coherent phonon scattering in crystals and ultrafast melting of crystals. Time-resolved spectroscopy is a powerful tool for studying the excitation dynamics of atoms, molecules and condensed matter, especially for the study of luminescence dynamics. Specifically, it can provide the interaction between different centers, the transfer of excitation energy and the channel for de-excitation, etc. Important information; it can track the rapid change process of photophysics, photochemistry and photobiology; it can combine the fluorescence quantum yield, and the important parameters of excited state dynamics can be ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/44G01T1/00
CPCG01J1/44G01J2001/442G01T1/00
Inventor 李贞杰周杨帆马毅超李秋菊常劲帆刘湘刘鹏
Owner INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
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