Model for calculating and evaluating eye crystal dosage

Abstract

The invention relates to a model for calculating and evaluating eye crystal dosage. The model comprises a head model and eyeball models, two eye socket models are arranged on the head model and used for respectively placing a left eyeball model and a right eyeball model, and the head model sequentially comprises an external soft tissue model, a skull model and an internal soft tissue model from outside to inside. The external soft tissue model represents a skin, the skull model represents a skull, and the internal soft tissue model represents a skull internal tissue; each eyeball model comprises an eyelid model, a cornea model, an anterior chamber model, a crystalline lens model, a vitreous body model, a retina model, a choroid model and a sclera model; the head model and the eyeball models are provided with protective devices and radiation dosimeters. The eyeball model has a detailed anatomical structure, the size of the eyeball model is equivalent to the size of a real eyeball, the density and the element proportion of each tissue are derived from medical data, and fine calculation of the eye crystal dosage, radiation risk evaluation and radiation protection optimization work canbe further perfected.

Description

Technical field[0001]The invention relates to the field of ionizing radiation dose and protection, in particular to a model for calculation and evaluation of the dose of eye lens.Background technique[0002]The lens (lens) is a biconvex transparent tissue, which is one of the important refractive interstitials in the eyeball, and is also a sensitive tissue for ionizing radiation. When it receives a single large dose or multiple small doses of radiation, it will cause radiation damage and cause lens disease, the formation of lens turbidity, and more severely will develop into cataracts.[0003]In order to prevent the risk of overexposure, both international and domestic regulations have set corresponding eye lens dose limits. Recently, international authoritative organizations (such as the International Atomic Energy Organization IAEA and the International Commission for Radiological Protection ICRP) have significantly reduced the annual dose limit for ocular lens occupational exposure, ...

AI Technical Summary

Problems solved by technology

Although the voxel model has made great progress compared with the MIRD model, the eye has a certain fine structure, but because the volume of the voxel is too large compared with the lens and other eye tissues, it will lead to an overestimation of the dose

Therefore, the eye dose calculation model has not been carefully and deeply researched and developed for a long time.

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