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The center of the collimator and the center of the tube need to be on the same line

From the appearance, the collimator is a very simple accessory, but how to adjust the collimator? Recently, many customers have consulted the collimator. Many people may not be clear, so today I want to explain in this article:
Calibration adjustment of X-ray radiation field and imaging plane center:
The method of measuring the size of the preset range of the collimator. First set the light field size, and then measure the light field size on a plane perpendicular to the reference axis at a specified distance from the focal point to the image receiving surface.
The collimator uses LED lights as the visible light source of the preset light field. When replacing the LED lamp, remove the LED lamp cover and radiator of the collimator of the LED lamp, remove the damaged LED lamp from the radiator, apply thermal grease on the back of the new LED lamp substrate, and then reinstall the radiator . When replacing the LED lamp, be careful to pinch the substrate part with your fingers to avoid soiling the bulb.
After replacing the LED light, it is necessary to check whether the center of the collimator coincides with the center of the x-ray radiation field through fluoroscopy or filming. If necessary, loosen the lamp holder fixing plate to adjust.



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