Ray bundle transmission window regulating device and ray bundle transmission window regulating equipment

Abstract

The invention discloses a ray bundle transmission window regulating device, which comprises a fixed plate, two pressure plates, first to fourth regulating slide blocks, wherein the opening of the fixed plate is arranged on the fixed plate; the two pressure plates are respectively provided with the openings of the pressure plate, and the two pressure plates are respectively fixed on two surfaces of the fixed plate so that the two pressure plates and the opening of the fixed plate define a accommodating cavity; and the first to fourth regulating slide blocks are contacted with each other in sequence and arranged in the accommodating cavity to define a ray bundle transmission window, and the first to fourth regulating slide blocks are respectively slidable along the four inner walls of the opening of the fixed plate to regulate the area of the ray bundle transmission window. The ray bundle transmission window regulating device according to the invention is capable of regulating the size of the ray bundle transmission window in a stepless manner; and the ray bundle transmission window regulating device has the advantages of being high in precision, convenient to regulate and high in operation efficiency, and is easily realizing automatic regulation. The invention further discloses ray bundle transmission window regulating equipment.

Description

technical field [0001] The present invention relates to the technical field of radiation detection, in particular to a radiation beam transmission window adjustment device and a radiation beam transmission window adjustment device thereof, more specifically, to a tapered X-ray beam transmission window stepless adjustment device and Specifically its ray beam transmission window adjustment device. Background technique [0002] In radiation detection, it is necessary to adjust the area of ​​the transmission window of the ray beam (for example, the cone-shaped X-ray beam) to meet the imaging requirement on the transmission area of ​​the cone-shaped X-ray beam. Traditionally, the adjustment of the transmission window of the conical X-ray beam usually adopts a graded adjustment of the transmission window with multiple fixed opening areas, that is, when the area of ​​the transmission window needs to be changed, the transmission window is moved so that the window of the correspondin...

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Problems solved by technology

[0003] The above-mentioned traditional adjustment method cannot realize the stepless adjustment of the transmission window, and can only realize the adjustment of several levels (usually three levels) that have been set, which cannot meet the requirements for the transmission window of a specific area, especially for the transmission of the ray beam. In cases where the accuracy of the area is required to be high, for example, in medical situations, in order to meet the precise control of the absorbed dose of the irradiated person and the irradiation site, it is necessary to accurately adjust the area of ​​the conical X-ray beam transmission window

In addition, using the traditional adjustment method of the fixed frame, when it is necessary to apply the projected area between the various grades, the transmission window needs to be replaced manually, so it is time-consuming and laborious, and the operation efficiency is low

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