Radiation dose assessment method for animal organs in particle external irradiation experiments

Abstract

The invention relates to the field of radiation protection, and provides a method for evaluating the radiation dose of experimental animal organs by external irradiation of particles. The organ dose conversion factor can be obtained by using the digital model of the experimental animal and the simulation calculation of particle transportation, and then measuring the air kerma to determine the radiation dose of the organ. Assessment; solves the difficult problem of direct measurement of organ dose, and achieves the technical effect of improving the convenience and accuracy of organ dose assessment.

Description

technical field [0001] The invention relates to the technical field of radiation protection, and relates to a method, a device, an electronic device and a computer-readable storage medium for evaluating the radiation dose of an animal organ in a particle external irradiation experiment. Background technique [0002] With the in-depth study of the biological effects of ionizing radiation, researchers have found that the average dose of the whole body cannot meet the needs of the evaluation of biological effects; and the relationship between the biological effects of ionizing radiation and the dose is an important theoretical basis for radiation protection, that is, the medical treatment of radiation damage. Therefore, researchers usually use experimental animals (mice, rats, monkeys, etc.) to study the relationship between organ radiation dose and biological effects under particle external irradiation conditions. However, since radiation detectors cannot be placed directly in...

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Problems solved by technology

[0004] 1) It is necessary to make an equivalent phantom, which is time-consuming and laborious, and increases the cost of testing;

[0005] 2) The existing equivalent phantom has a simple geometric structure, which is only a cube or cylinder composed of a single substance (water or equivalent plastic), and there are no various organs and tissues in the phantom; therefore, the anatomical shape of each organ and tissue cannot be reflected The measurement results cannot accurately reflect the size and change law of the radiation dose of the organ;

[0006] 3) The measurement cycle is long and the measurement steps are cumbersome, resulting in low measurement efficiency

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