Optical path restriction slit structure for preventing X ray leakage and improving imaging quality

Abstract

The invention discloses an optical path restriction slit structure for preventing X ray leakage and improving imaging quality. The structure comprises a base plate, side plates and enclosing plates, wherein the base plate is provided with a slit, the base plate, the side plates and the enclosing plates are fixed through bolts, and the base plate, the side plates and the enclosing plates are made of steel materials. Through arrangement of the width of the slit and relative arrangement between a light source of X rays and a channel, a ray incident source is controlled, radiation leakage is controlled within a certain scope, the slit has a collimating effect on an optical path, the influence of irrelevant stray light is greatly reduced, the imaging quality of images is improved, the extraction and detection sensitivity of foreign matter signals is improved, the structure has great significance on improvement of the whole-machine performance, at the same time, lead is not used in protection measures, and the technical difficulty, the whole-machine weight and unnecessary lead pollution are reduced.

Description

technical field [0001] The invention relates to the field of special detection, in particular to an optical path limiting slit structure for preventing X-ray leakage and improving imaging quality. Background technique [0002] As a special detection method, X-ray has strong penetrating ability, and is widely used in various industries due to its ability to detect the internal structure of objects. However, due to the invisible nature of X-rays and the irreversibility of harm to the human body, the application of X-ray equipment has strict management regulations and strict market access restrictions in various countries. One of the very important indicators is the limitation of radiation leakage dose. At present, in the world, except the United States, which limits 5 μSv / h, other countries limit the radiation dose leakage rate to less than 1 μSv / h. At present, a lot of equipment is protected by lead, which not only increases the weight of the whole machine, increases the dif...

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Problems solved by technology

At present, a lot of equipment is protected by lead, which not only increases the weight of the whole machine, increases the difficulty of the process, but also introduces the pollution of toxic heavy metal lead

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