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qxj1989ly金蟲 (小有名氣)
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Projections (assembling of transmitted beams) are recorded for several angular positions by rotating the sample between 0 and 180. Then, a back-projection algorithm is used to reconstruct 2D or 3D images, depending on the method used. In the case of 2D images each pixel has a grey level value corresponding to the local attenuation coefficient. |

金蟲 (小有名氣)

新蟲 (初入文壇)
金蟲 (小有名氣)

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