A dual fluorescent material radiation dose detection fiber optic probe

Abstract

The invention provides a double-fluorescent material radiation dose detection optical fiber probe, which is used for detecting the absorbed dose in a radiation area. The optical fiber probe comprises a first optical fiber and a second optical fiber, wherein one end of the first optical fiber and one end of the second optical fiber are used for being connected with a first light intensity detector and a second light intensity detector respectively; detection end parts of the first optical fiber and the second optical fiber are internally filled with a first fluorescent material and a second fluorescent material respectively; and the first fluorescent material and the second fluorescent material are two different kinds of fluorescent materials. The double-fluorescent material radiation dose detection optical fiber probe has the beneficial effects that as the first optical fiber and the second optical fiber are internally filled with the different fluorescent materials respectively, the actual radiation depth and the actual radiation absorbed dose in the radiation area are obtained through an incorrect solution removal method by using the two different fluorescent materials and in the case of real-time measurement, health and safety of a patient during a course of radiotherapy can be ensured.

Description

technical field [0001] The invention relates to an optical fiber probe, in particular to an optical fiber probe for radiation dose detection with dual fluorescent materials. Background technique [0002] Due to changes in social and environmental factors in today's society, the number of people suffering from malignant tumors is on the rise around the world, and radiotherapy, as an effective method for treating malignant tumors, has been widely used in the medical field. During radiotherapy, a large amount of radiation, such as α-rays, β-rays, γ-rays, X-rays, and electron radiation, will be irradiated on the tumor from different directions, which will damage the DNA of tumor cells to inhibit their growth and proliferation, but in patients During radiotherapy, if you receive excessive radiation, it will cause great damage to the healthy tissues of your body. Therefore, it is particularly important to control the radiation absorbed dose of patients during treatment. [0003] ...

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Problems solved by technology

[0003] At present, most of the standard sensors for measuring radiation absorbed dose cannot meet the requirements of real-time monitoring of absorbed dose due to factors such as excessive size, insufficient material safety, and short service life; The result is related to the depth of the fiber optic probe, and the radiation depth will be affected by the patient's position and irradiation direction, making it difficult to determine the radiation depth. In this way, the fiber optic probe with a single fluorescent material cannot accurately obtain the actual radiation absorbed dose of the patient's treatment area , in view of this, it is urgent to develop a fiber optic probe that can detect the actual absorbed dose in the radiation area

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