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According to this Harvard Medical article, in order to x-ray an arm or leg the average dose is 0.001mSv with a range reported in literature of 0.0002—0.1mSv. A lumbar spine x-ray would require an average of 1.5mSv with a range reported in literature of 0.5—1.8mSv. Therefore, it would be safe to say that dosages are adjusted according to the part of the body ...


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Nobody knows. There are three main models for the effects of low-dose radiation. The mainstream model, and the most conservative of the three, is the linear no-threshold model. It assumes that high-dose effects can be linearly extrapolated clear down to zero (that is, zero dose has zero effect, any non-zero dose carries a non-zero level of risk). The most ...


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