Passive calibration method, system, device and product of scintillator detector

By using a reference light source instead of the radiation source, the scintillator detector can realize passive scale, solving the problems of more contact with the radiation source and low scale efficiency in the prior art, and improving safety and efficiency.

CN119689543AActive Publication Date: 2025-03-25BEIJING NUC SAFE TECH
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Patent Information

Application Number
CN202411980984.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-25
Estimated Expiration
2044-12-31

AI Technical Summary

Technical Problem

The scaling process of existing scintillator detectors needs to rely on the radioactive source, resulting in increased contact between humans and radioactive sources, and low scale efficiency, which can cause harm to the human body.

Method used

The reference light source is used instead of the radiation source, and the reference light source is detected multiple times through the scintillator detector, the light source count rate is obtained, and the scale coefficient of the detector is determined in combination with the reference count rate and radioactive activity to achieve passive scale.

Benefits of technology

It reduces contact between people and radioactive sources, improves scale efficiency, reduces the harm to the human body, and reduces the number of times and duration of radioactive sources.

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Abstract

The invention provides a passive calibration method, system, device and product of a scintillator detector, and relates to the field of radiation detection. The method comprises the following steps: detecting a reference radioactive source by using a scintillator detector to obtain a corresponding reference counting rate; replacing the reference radioactive source with a reference light source, and detecting the reference light source for multiple times by using a scintillator detector to obtain a plurality of corresponding light source counting rates; determining a reference scale coefficient of the scintillator detector under the conditions of the first reference voltage and the reference radioactive source according to the reference counting rate and the radioactive activity of the reference radioactive source; and determining scale coefficients of the scintillator detector under a plurality of different voltage conditions according to the proportional relation among the plurality of light source counting rates and the reference scale coefficient. According to the method, the reference light source can be used for replacing a radioactive source to scale the scintillator detector, so that the passive scale effect is achieved.
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