The X-ray collimator is an electromechanical optical device installed in front of the output window of the X-ray tube assembly. Its main function is to control the output radiation area of the x-ray tube. On the premise of meeting the shooting area of X-ray imaging diagnosis, the projection range should be reduced as much as possible to avoid unnecessary radiation dose to the patient. It can absorb some scattered light and improve the clarity.
In addition, the X-ray collimator can also indicate the size and location of the center of the photo. For example, when used with a mobile x-ray machine, the center point of the shot needs to be aligned with the center of the digital flat panel detector because of its mobility. Therefore, the X-ray collimator can be used to calibrate the center position conveniently and effectively. Therefore, the X-ray collimator is an indispensable auxiliary device for X-ray projection and protection.
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