Tungsten alloy pre-patient collimator is the tungsten alloy collimator located in front of the X-ray tube on a CT machine, with characteristics of high density, smooth surface and good dimensional accuracy. Tungsten alloy pre-patient collimator is the first component through which X-rays pass, and is mainly used to control the thickness of the scanning layer by controlling the width of the X-ray beam in the direction parallel to the long axis of the human body. The X-rays emitted from the X-ray tube are tapered, and becomes a thin beam after passing through the slit-shaped tungsten collimator.
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In recent months, CT machines such as CT scanners have been mentioned and used more frequently due to the prevalence of novel coronavirus pneumonia. CT uses accurate collimated X-ray beams to achieve cross-sectional scanning, and X-rays are radiant. In order not to expose the patients to excessive radiation, all CT machines and CT rooms are specially designed. For example, tungsten alloy pre-patient collimator, in addition to obtain clear imaging, it has good radiation shielding effect, as tungsten alloy is a new type of environmental protection radiation protection material with stronger radiation absorption ability than traditional lead.
