Introduction In A-level Physics Remote Sensing, one particular concept that students were required to apply was the idea of using voxel to build up the x-ray image of a body. Some students were wondering the very arbitrary idea of performing certain procedures to arrive at the answer. In this article, I am going to explain the reason why the series of steps work as described. Procedure Assuming four voxels with unknown densities,w, x, y and z, are investigated with an x-ray beam. When an x-ray beam is directed at the region, the detected intensity could be received at the other…
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