Detection tool and detection method for position offset of flat-panel detector, and radiation treatment device

Abstract

The invention discloses a detection tool and a detection method for the position offset of a flat-panel detector, and a radiation treatment device. The detection tool comprises a substrate plate and columns, wherein the substrate plate is used for being fixedly arranged on the flat-panel detector; and a plurality of columns are fixedly arranged on a test surface of the substrate plate in a uniformdistribution mode. According to the invention, the position offset of the flat-panel detector relative to a radioactive source can be detected without a high-precision measuring tool when a frame ofthe radioactive treatment device is at different angles, and the position offset of the flat-panel detector can be rapidly obtained; the detection tool is simple in structure and convenient to install; and the detection method is simple in step and convenient to operate.

Description

technical field [0001] The invention belongs to the field of medical technology, and in particular relates to a flat panel detector position offset detection tool, a method and a radiotherapy device. Background technique [0002] Such as figure 2 As shown, modern radiotherapy devices are usually equipped with a flat panel detector, and use this detector to perform electronic portal imaging as a direct basis for whether the patient is correctly positioned. At the same time, this flat panel detector is also used to do some daily mechanical performance testing. The flat panel detector is fixed by a special support arm, and the support arm moves and fixes the flat panel in a special position as required. Whether the position of the flat panel detector is accurate becomes a very important reference parameter. If the reference position If it is inaccurate, the basis for testing the mechanical properties of radiotherapy devices based on flat panel detectors will also be inaccurate...

AI Technical Summary

Problems solved by technology

The flat panel detector is fixed by a special support arm, and the support arm moves and fixes the flat panel in a special position as required. Whether the position of the flat panel detector is accurate becomes a very important reference parameter. If the reference position If it is inaccurate, the basis for testing the mechanical properties of radiotherapy devices based on flat panel detectors will also be inaccurate, resulting in the unreliability of the entire test.

[0003] In the existing technology, the detection of the positioning accuracy of the flat panel detector is carried out by means of high-precision ranging sensors or level instruments. At the same time, the whole process cannot be completed automatically, and a lot of energy and material resources are required for measurement and verification.

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