Detector device with Z-axis focus tracing and correction capacity and application method thereof

Abstract

The invention relates to a detector device with Z-axis focus tracing and correction capacity and an application method thereof. The detector device comprises an X ray emission source, a front collimator and a detector, collimation holes are formed in the front collimator, the front collimator is further provided with tracing holes, X rays can pass through the tracing holes, the tracing holes are symmetrical about the symmetric lines of the collimation holes, and the side faces of the tracing holes are communicated with the side faces of the collimation holes. The detector is mainly divided into an ideal attention channel region, an upper reference channel region, a lower reference channel region and a baseline channel region, the ideal attention channel region receives X rays passing through the collimation holes, the lower reference channel region is located on the lower side of the baseline channel region, and the upper reference channel region, the lower reference channel region and the baseline channel region are used for receiving X rays passing through the tracing holes. According to the detector device and the application method thereof, Z-axis focus tracing and correction are conducted more simply and conveniently, cost is effectively reduced, and economic benefits are increased.

Description

technical field [0001] The invention mainly belongs to the technical field of medical imaging, and in particular relates to a detector device with Z-axis focus tracking and correction capabilities and a use method thereof. Background technique [0002] Digital imaging systems can be used to take images to help doctors make a correct diagnosis. A digital radiography imaging system typically includes a source and a detector. Energy generated by a source, such as X-rays, passes through the object to be imaged and is detected by a detector. An associated control system acquires image data from the detector and modulates a corresponding diagnostic image on the display. One or more collimators may be used to block and / or confine X-rays or other energy from the detector. For example, an opening may be provided in the collimator through which X-rays pass from the source to the detector. [0003] The CT detector system uses the aforementioned principles to work. At present, th...

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This requires the use of complex hardware and is undoubtedly expensive

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