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What are the advantages of rectangular x ray collimator in terms of applications?

Rectangular x ray collimator is a common appearance type of beam limiter. The outer shell of the rectangular beam limiter is made of iron, with rectangular appearance and square field of view, which makes the X-ray rectangular beam limiter system stable.
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What is the internal structure of the beam limiter?
In order to ensure that the rectangular x ray collimator can radiate X-rays in an appropriate amount, the outer wall of the rectangular beam limiter is made of double lead lining material. The rectangular x ray collimator uses a lead leaf to control the size of the X-ray field. The blade also contains lead. Two pairs of lead blades are at the entrance of the ray, two pairs of lead blades are in the middle, two pairs of lead blades are at the exit of the ray, and one rectangular beam limiter contains six lead blades. During the process of closing the lead blade, the field of vision of the rectangular x ray collimator is always square. The knob on the outside of the beam limiter can manually control the rotation to control the closure degree of the blade.
Generally, there is a ruler on the right side below the rectangular x ray collimator, which can measure the distance between the rectangular x ray collimator and the bed surface, thus estimating the SID.
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Author: Abby

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