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What is manual collimator radiography?

The opening and closing process of the shielded lead blade of the manual collimator radiography is realized by manually adjusting the knob on the collimator radiography.
The manual collimator radiography uses an LED lamp to simulate X-rays, instead of X-rays, to determine the X-ray path through the visible light path, and then reflects the X-rays through the reflector of the collimator radiography to the bed surface. Therefore, the light of the LED lamp can predict the size of the field in advance.
Mirrors are usually made of silver plated plastic, and the aluminum equivalent is about 0.5mm, which does not affect X-ray imaging. In front of the collimator radiography is also equipped with a clean and transparent plastic plate engraved with black lines or black dots to indicate the center of the ray field.
The irradiation field size marked with the corresponding focal length around the knob of the collimator radiography can be pre-set with the illumination field of the indicator lamp so as to quickly adjust the illumination field size and extend the service life of the indicator lamp after the illumination of the indicator lamp.
collimator radiography