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Incorrect centering of the x-ray beam to the center line of the grid can cause grid cut-off on the radiograph. The x-ray tube should always be positioned so that the central ray is pointed at the center line on the grid.
On the basis of not deviating from the center line of the X-ray grid, the X-ray center line can be inclined at a certain angle according to the inclination direction of the lead rod, so that the X-ray radiation direction is consistent with the lead.
On the basis of not deviating from the center line of the x ray grid, the X-ray center line can be tilted at a certain angle according to the tilt direction of the lead bar to make the X-ray radiation direction consistent with the lead bar direction.
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Focused grids have lead strips that are oriented parallel at the center (along the x-ray central axis) and progressively slanted to the periphery to match the beam divergence from the focal spot .to the detector at a specific source to detector distance.
An interactive calculator for changing multiple technical parameters (kVp, SID, s, Bucky Factor) in and observing the effect on the mA needed to keep the exposure on the image receptor constant. Great for studying for your ARRT boards or brushing up to sharpening your technical parameter skills for Radiography exams.
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In the X-ray photography, the center line of the X-ray is aligned with the center of the grid, and the original ray projection direction is in the same direction as the gap between the lead bars of the grid.
