A fiber optic three-dimensional array accelerator ray field analyzer

Abstract

An optical fiber three dimensional array type accelerator ray field analyzer provided by the present invention comprises a reception device and a detection and acquisition device, the detection and acquisition device comprises an optical fiber positioning plate, an imaging system and an image sensor, and the reception device comprises a container and at least two layers of panels which are arranged inside the container. Optical fibers are arranged on each layer of panels symmetrically, the end part of each optical fiber penetrates a hole arranged on the optical fiber positioning plate and is fixed by a clamp, the end faces of the optical fibers are imaged on the image sensor via the imaging system, and the image sensor is connected with a computer. The optical fiber three dimensional array type accelerator ray field analyzer prepared by the present invention is simple in structure and light and handy in size, is convenient to operate, and can display the measurement results real-timely at work.

Description

technical field [0001] The invention relates to an optical fiber three-dimensional array type accelerator ray field analyzer. Background technique [0002] Radiation therapy is one of the important means of clinical comprehensive treatment of tumors. Clinically, more than 65% of malignant tumor patients receive radiation therapy for different treatment purposes at different stages of the disease, that is, to irradiate tumor cells with high-energy X-rays. Precise radiation therapy technology static intensity modulation and rotational volume intensity modulation can give sufficient and precise treatment dose to the tumor area, and at the same time reduce the radiation dose of surrounding normal tissues and organs, improve the tumor control rate and reduce the radiation complications of normal tissues. In order to ensure the safety and effectiveness of precise radiation therapy, the entire treatment plan must be carefully designed and accurately executed, and quality assurance ...

AI Technical Summary

Problems solved by technology

The morning inspection instrument with this structure can detect and analyze the output dose, symmetry and flatness of the accelerator very well, but this kind of accelerator morning inspection instrument also has shortcomings: the detectors are distributed in the plane position and cannot be measured at the same time Dose distribution in three-dimensional space; using ionization chambers, semiconductors and other dose detectors, on the one hand, due to their large volume and poor light transmission, layering the detectors will hinder X-ray irradiation and affect the absorbed dose. Use in special environments such as underwater

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