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mottle |
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mottle
Etymology: ME, motley, mixed colors an effect observed in radiographic imaging when the dose of radiation used is reduced to a level at which individual quantum effects can be seen. At very low doses, the number of photons being produced is so small that the statistical variations in x-ray production can be visualized. Also called noise, quantum mottle. mottle [mot´'l] a disturbance in a recorded radiographic image. grid mottle in radiology, a widening of grid lines when the grid is in motion. quantum mottle variations in optical density on a radiograph. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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