Enamel radiation dose prediction method and system, storage medium and terminal

Abstract

The invention belongs to the technical field of radiation dose estimation and analysis, and discloses an enamel radiation dose prediction method and system, a storage medium and a terminal. Sampling points which are the same as the prepared BGS substrate and the prepared RIS substrate are selected, and an EPR spectrogram value on a corresponding point of the to-be-predicted sample is obtained; performing noise reduction processing on the EPR spectrogram of the current to-be-predicted sample by using fast Fourier transform; solving the RIS intensity of the to-be-predicted sample through the improved matrix; and according to the linear dose response relationship, obtaining a radiation dose value of the to-be-predicted sample. According to the method, the calculated amount is equal to that of an original matrix method, new model parameters are not introduced, the number of the parameters is small, the fitting effect is good, the fitting error is smaller than 1%, EPR enamel dose estimation of a lower dose can be achieved, and in a low-dose area smaller than 0.3 Gy, the difference between the calculated irradiation dose value and a true value is smaller than or equal to 16%.

Description

technical field [0001] The invention belongs to the technical field of radiation dose estimation and analysis, and in particular relates to a method, system, storage medium and terminal for predicting the radiation dose of tooth enamel. It specifically relates to a method for predicting the radiation dose of tooth enamel based on matrix algorithm and Fourier transform. Background technique [0002] As the use of nuclear energy has increased, so has the potential for nuclear and radiation hazards. Rapid and efficient retrospective dose estimation becomes even more important in the event of an accident. Electron paramagnetic resonance (EPR) spectroscopy is one of the methods for evaluating absorbed dose, which is based on the analysis of biological or physical effects caused by radiation. The enamel will produce certain free radicals after irradiation, and the greater the irradiation dose, the greater the EPR signal intensity. The dose estimation to the enamel after the acc...

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Problems solved by technology

The most important problem is that in the above models, it is difficult to ensure simple parameter calculation, less hyperparameter estimation and effective low-dose solution at the same time, which brings difficulties to practical applications

[0005] Through the above analysis, the existing problems and defects of the prior art are: in the prior art, the prediction accuracy of the linear relationship between the enamel irradiation dose and the EPR signal intensity is low, especially in low-dose areas, and the enamel radiation dose analysis is extremely difficult. Affected by background noise, the dose prediction data is inaccurate, and the low-dose area prediction of radiation dose is currently the focus of attention, which provides an important basis for early medical treatment and precise treatment of radiation patients

[0006] The difficulty of solving the above problems and defects is that it is very difficult to reduce the noise directly from the equipment and requires a huge capital investment. This is because reducing the various errors caused by the equipment requires improving the relevant parts of the equipment or even redesigning the corresponding equipment. , which is currently infeasible in most cases

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