Secondary Radiation Grids
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Secondary Radiation Grids - 1

CAWO Secondary Radiation Grids …realising optimum x-ray image quality

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Secondary Radiation Grids - 2

Secondary radiation grids The use of a grid to eliminate scattered radiation is an important way of achieving optimum image quality. The CAWO full metal grids consist of a series of absorbent lead strips interspaced by aluminium strips. Primary radiation will, provided a perfect alignment between x-ray source and grid, pass unhindered onto the image receptor while the scattered radiation to a large extent will be absorbed by the grids lead strips. The number of strips and the height and distance (e.g. ratio) between lead strip and interspace medium will determine the performance of the...

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