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A patient undergoes an X-ray examination of the abdomen, for which the entrance dose is 2.5 mSv. The dose at a point within the body, halfway along the X-ray path through the abdomen, is 35% of the entrance dose. Weighting factors are given below for four organs that you may assume will all be completely exposed to radiation as a result of this examination. Calculate, clearly stating any assumptions you need to make: (a) The mean absorbed dose; (b) The effective dose; Tissue weighting factor WT Bladder (c) Outline reasons why the effective dose calculated in (b) will contain inaccuracies