Consider the “inverse square law”. Compared to being 1 m from a point x-ray source, what will be the photon flux at a distance of 4 m from the source?
belongs to book: Examination Questions and Answers in Basic Anatomy and Physiology|Martin Caon|| Chapter number:17| Question number:20
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Medicine
D: “Inverse square” means at double the distance, the flux will be one half squared of the original flux (½)2 = 1/4. At 4x the distance, the flux will be (¼)2 = 1/16
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