Simple, convenient and accurate device and method for vertically and horizontally adjusting three-dimensional scanning of radiation field

Abstract

The invention belongs to the technical field of the detection scanning of radiation fields, in particular relates to a simple, convenient and accurate device and method for vertically and horizontally adjusting the three-dimensional scanning of a radiation field. The simple, convenient and accurate device for vertically and horizontally adjusting the three-dimensional scanning of the radiation field comprises a water tank, wherein a vertical adjusting block, a first horizontal adjusting block and a second horizontal adjusting block are arranged on the water tank; a screw mechanism is vertically arranged on the water tank through the vertical adjusting block, wherein the verticality of the screw mechanism and the water surface of the water tank is detected through level moment; or the screw mechanism is horizontally arranged on the water tank through the first horizontal adjusting block and the second horizontal adjusting block. By the application of the simple, convenient and accuratedevice for vertically and horizontally adjusting the three-dimensional scanning of the radiation field, adjusting blocks are arranged between the screw mechanism and the water tank; the levelness andthe verticality of the screw mechanism are adjusted by the adjustment of the adjusting blocks; and the verticality of the screw mechanism and the water surface is detected through the level moment. Therefore, a detector is guaranteed to be always perpendicular to or parallel to the water surface; the conditions required for the detection scanning are met; and the accuracy of the detection scanning is guaranteed. Moreover, the simple, convenient and accurate device for vertically and horizontally adjusting the three-dimensional scanning of the radiation field has the advantages of simple structure, convenience of operation, and use, stable working performance, powerful functions, small size, light weight and convenience for movement and transportation.

Description

Technical field: [0001] The invention belongs to the technical field of detecting and scanning a radiation field, and in particular relates to a simple and accurate three-dimensional scanning horizontal and vertical adjustment device and method for a radiation field. Background technique: [0002] At present, in the acceptance of newly installed radiotherapy equipment in the hospital; in the inspection of the original radiotherapy equipment in the hospital after overhaul; in the daily quality assurance and quality control of the radiotherapy equipment in the hospital and the radiotherapy equipment data collected by the hospital for the treatment plan It is often necessary to use a three-dimensional water tank measurement system. The three-dimensional water tank measurement system is mainly composed of a large water tank, a precision stepping motor, an ionization chamber, a control box, a computer and corresponding software. It can quickly and automatically scan the relative d...

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Problems solved by technology

[0003] However, the three-dimensional water tank measurement system currently on the market has a large volume and heavy weight (about 200kg with water), and it is difficult to move, adjust and transport. When using a special transport vehicle, the transportation cost is relatively expensive. In addition, during the use of the three-dimensional water tank measurement system, when performing vertical measurement, the detector must be perpendicular to the water surface in the water tank, and when performing horizontal measurement, the detector must be parallel. The screw mechanism of the three-dimensional water tank is fixed inside the water tank. It cannot adjust its level and verticality. It can only adjust the level and verticality by adjusting the water tank. In the actual use of the three-dimensional water tank, the water tank itself And the screw mechanism itself is easy to deform, and these deformations are permanent deformations, which cannot be repaired after deformation. In actual use, some subtle deformations cannot be confirmed. If a deformed three-dimensional water tank is used for acceptance or inspection of radiotherapy equipment , the test results are inaccurate, the quality of the radiotherapy equipment cannot be guaranteed, the accuracy of the collected radiotherapy equipment data cannot be guaranteed, and it may even cause very serious consequences. Moreover, most of the 3D water tank measurement systems currently on the domestic market are from foreign countries. Imported, its market and technical core are controlled by foreign manufacturers, which seriously restricts the improvement of our country's technological level in this field, and is also very unfavorable to our country's economic development.

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