Dose measuring device for radiotherapy equipment

Abstract

The invention discloses a dose measuring device for radiotherapy equipment. The dose measuring device comprises a box body, an ionization chamber adapter, a horizontal measuring assembly, a horizontal adjusting mechanism, an electric height measuring mechanism, a liquid level sensor and an electromagnetic valve, the ionization chamber adapter is horizontally arranged in the box body, and the two ends of the ionization chamber adapter penetrate out of the box body; the periphery of the top edge of the box body extends outwards to form a reference plane; the horizontal measurement assembly is installed on the reference plane. The horizontal adjusting mechanism is mounted at the bottom of the box body; the electric height measuring mechanism is vertically installed on the reference plane, the liquid level sensor is installed on the electric height measuring mechanism, and the electric height measuring mechanism drives the liquid level sensor to ascend and descend; a water outlet pipe is arranged at the bottom of the box body; the electromagnetic valve is mounted on the water outlet pipe. The device has the precise leveling function, the horizontal detection function and the automatic water level height adjusting function, error interference caused by manual observation of the horizontal plane is eliminated, the measurement precision is improved, and the measurement work is more time-saving and labor-saving.

Description

technical field [0001] The present invention relates to the technical field of medical auxiliary equipment, in particular to a dose measuring device used for radiotherapy equipment. Background technique [0002] Radiation therapy is a way of treating tumors using radiation therapy equipment that produces a specific dose of ionizing radiation. Therefore, the accuracy of radiation dose generated by radiotherapy equipment is particularly important, which is directly related to the efficacy and safety of tumor treatment. Radiation therapy physicists regularly use dose measuring devices to measure the radiation dose of radiation therapy equipment, and adjust in time if the tolerance is exceeded to ensure the stability and safety of the therapy equipment. [0003] In regular measurement, the one-dimensional water tank is a common tool for radiation dose measurement in clinical radiotherapy equipment. Its structure is simple. When measuring, the radiotherapy physicist first adjust...

AI Technical Summary

Problems solved by technology

The disadvantage of this structure is: each measurement can only judge whether the tank is level and the height of the liquid level by observing the coincidence degree of the concave liquid surface of the water surface and the scale line on the water tank with the naked eye, which has a lot of subjective factors. At the same time, at the same time, different people will observe differently, and human-made measurement errors are prone to occur; in addition, it is necessary to observe whether the scale lines on the four sides coincide with the liquid level during each leveling, and it is impossible to visually view the leveling situation, and I don’t know whether it is correct or not. Excessive amount will bring great trouble to the leveling work

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