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Are there positive and negative DR grids?

X-ray grids are ideal for eliminating scattered rays, resulting in sharper images. In general, grids should be used when the thickness of the subject is greater than 10CM. The thinner the object to be illuminated, the smaller the required breakdown dose (kV value), and the higher the scattering line.
Less, the higher the contrast, and the thicker the object to be illuminated, the greater the required breakdown dose (kV value), the scattering line increases exponentially, the greater the degree of image blur.
How is the wire grid produced? The conventional production method of the wire grid is the lead strip on the top and the aluminum strip on the bottom.
What does the focal length (FD) of the grid mean, is it the same as the SID?
FD is the distance between the bulb and the grid bottom plate. SID is the distance between the tube and the top surface of the FPD.
How should the grid be installed? Are there any pros and cons?
The answer is, of course, there are positive and negative points. The grid is generally labeled on the front side, and the front side faces the X-ray tube.

Author: X Ray Machine Accessories

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