Calculation method of multi-nuclide gamma energy spectrum characteristic peak area

By obtaining the characteristic peak range of the multinuclide γ energy spectrum and performing Gaussian fitting processing, determining the characteristic peak position and region, and calculating its area, the problem of insufficient calculation accuracy in the prior art is solved, and fast and accurate calculation of the characteristic peak area is achieved.

CN120372129APending Publication Date: 2025-07-25NORTH CHINA ELECTRIC POWER UNIV +1
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Patent Information

Application Number
CN202510252894.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

The existing γ energy spectrum analysis method has insufficient accuracy when the background noise is high or the data resolution is not high, and requires manual experience or strong computing power, making it difficult to quickly and accurately calculate the characteristic peak area of the multinuclide γ energy spectrum.

Method used

By obtaining the characteristic peak range of the multinuclide γ energy spectrum, performing Gaussian fitting processing, determining the location and region of the characteristic peak, using the Gaussian fitting results to calculate the area of the characteristic peak, using the least squares method to fit and extract the relevant parameters, and numerical integration to calculate the area.

Benefits of technology

It realizes rapid and accurate calculation of the characteristic peak area of the multinuclide γ energy spectrum, reduces background noise interference, improves data accuracy and reliability, and is suitable for complex sample analysis.

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Abstract

The invention provides a multi-nuclide gamma energy spectrum characteristic peak area calculation method, which comprises the following steps: acquiring a multi-nuclide gamma energy spectrum, and determining a characteristic peak range of the multi-nuclide gamma energy spectrum; gaussian fitting processing is carried out on the determined characteristic peak range; determining the position and the area of a corresponding characteristic peak according to a Gaussian fitting processing result; and calculating the area of the characteristic peak according to the determined position and area of the characteristic peak. By applying the method, the area of the characteristic peak of the multi-nuclide gamma energy spectrum can be quickly and accurately calculated.
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