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Photon Flux

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Suppose that x rays are emitted from a focal spot isotropically. The photon flux is 3.28x10^6 photons mm^-2 sec^1 at a distance of 0.75m from the focal spot. What is the photon flux at a distance of 10cm from the focal spot? Neglect the effects of air attenuation.

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Solution Summary

In this solution we compute the photon flux of an X-ray beam at a given distance from its target.

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