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Cherenkov radiation detection method and apparatus

A radiation detection and detector technology, applied in the fields of digital signal processing, optoelectronic signal processing and nuclear detection, can solve the problems of difficulty in capturing the direction information of the Cherenkov event, limiting the application and promotion of Cherenkov radiation, etc. Achieve high image signal-to-noise ratio, improve imaging signal-to-noise ratio, and reduce background noise

Pending Publication Date: 2017-02-15
NANJING RAYCAN INFORMATION TECH
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  • Claims
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Problems solved by technology

If the number of events emitted by the radiation event is small, or no other particles are detected, the direction information of the Cherenkov event will be difficult to capture, which greatly limits the application of Cherenkov radiation in biology, medicine, national defense, and industry. application and promotion on

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  • Cherenkov radiation detection method and apparatus
  • Cherenkov radiation detection method and apparatus
  • Cherenkov radiation detection method and apparatus

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example 1

[0051] The parameters of data processing in this embodiment are listed here:

[0052] Step (1) using a silicon photomultiplier tube enhanced by red light, and the detector adopts a ring structure;

[0053] Step (2) The coincidence time is about 2ns, and the coincidence judgment adopts offline time coincidence processing;

[0054] Step (3) uses the analytical Cherenkov event reconstruction method to directly plot the Cherenkov time and location.

example 2

[0056] The parameters for processing data in this application instance 2 are listed here:

[0057] Step (1) Use a photomultiplier tube with red light enhancement, and the detector adopts a flat plate structure;

[0058] Step (2) The coincidence time is about 10ns, and the coincidence judgment adopts the online time coincidence processing;

[0059] Step (3) uses the iterative Cherenkov event reconstruction method to approximate the time and position of Cherenkov.

[0060] The method and device of the present invention can be used in nuclear technology that radiates charged particles, including nuclear detection, nuclear analysis, and nuclear medicine instruments.

[0061] In the Cherenkov radiation detection method provided by the present invention. By time matching, the self-illumination and background light of the organism are eliminated. Judging the time and position of the Cerenkov event by the relative position of the single-photon event in the hole, the imaging quality...

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Abstract

Provided is a Cherenkov radiation detection method. The method comprises placing a photodetector array, reading the photon counting and each counting time of Cherenkov photons emitted by charged particles to a detector module; performing time coincidence on the read time; and estimating the occurring position of the Cherenkov event according to the relative position of the photon in a hole. Provided is a Cherenkov radiation detection apparatus including a photodetector module, a multi-event time coincidence module, and a Cherenkov event estimation module. The Cherenkov imaging method and apparatus can effectively improve the device space resolution and imaging signal to noise ratio, and are especially suitable for the imaging of plants or other living bodies having low imaging depth requirement.

Description

technical field [0001] The invention relates to the fields of digital signal processing, photoelectric signal processing and nuclear detection, in particular to a single-photon time-resolved Cerenkov radiation detection method and device. Background technique [0002] Cerenkov radiation is a type of electromagnetic radiation in and around the visible region emitted by high-velocity charged particles. The existing Cherenkov detectors are mainly high-speed photodetector units, which are very deficient in reading the position information and energy information of the Cherenkov event, such as the Cherenkov counter on the Alpha Magnetic Spectrometer , whose direction is captured by other particle detectors. If the number of events emitted by the radiation event is small, or no other particles are detected, the direction information of the Cherenkov event will be difficult to capture, which greatly limits the application of Cherenkov radiation in biology, medicine, national defen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/22
Inventor 谢庆国邓贞宙
Owner NANJING RAYCAN INFORMATION TECH
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