High-precision radiation field scanning device adapted to multiple water tanks

Abstract

The invention relates to a high-precision radiation field scanning device adapted to multiple water tanks. The scanning device comprises a 3D motion guide rail device, a clamping module, a detector and a magnetic grating scale; the 3D motion guide rail device is arranged over a detector placing side of the water tank, and comprises first, second and third guide rails; the clamping module is arranged on the 3D motion guide rail device, and drive by a servo motor of the 3D motion guide rail device; the detector is fixed by the clamping module and arranged in the water tank, moves correspondinglyin the water tank with movement of the clamping module, and detects rays input to the water tank via a ray incident plane of the water tank to determine a radiation dose; and the magnetic grating scale ensures that the detector reaches a predetermined work position accurately. Via the scanning device, the detector moves in multiple dimensions, different positions are detected, needed measurementdata is obtained, and a test result is more accurate and effective.

Description

technical field [0001] The invention relates to the field of radiation detection equipment, in particular to a high-precision radiation field scanning device adapted to multiple water tanks. Background technique [0002] Ionization chambers are detectors that measure ionizing radiation using its ionizing effect and can be used to detect the amount of radiation at a location. [0003] In different application scenarios, ionization chambers can be arranged or accommodated in different devices. [0004] In the high-precision radiation field measurement method for radiotherapy quality control, the ionization chamber is placed in the water tank. In the past, only the physicist used ordinary equipment such as ionization chamber dosimeters and films to complete the position adjustment through complicated operations. The water tank or ionization chamber is translated along the direction of the ray beam, that is to say, there is only a one-dimensional position change, and accurate t...

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Problems solved by technology

[0004] In the high-precision radiation field measurement method for radiotherapy quality control, the ionization chamber is placed in the water tank. In the past, only the physicist used ordinary equipment such as ionization chamber dosimeters and films to complete the position adjustment through complicated operations. The water tank or ionization chamber is translated along the direction of the ray beam, that is to say, there is only a one-dimensional position change, and accurate test results cannot be obtained. The measurement position is limited, time-consuming and labor-intensive, and the accuracy is poor

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