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NCRP Report No. 160, published in 2009, highlights a significant increase in the average annual radiation dose to the U.S. population, rising from 3.6 mSv to 6.2 mSv. This increase was primarily driven by a six-fold rise in medical exposure, particularly from computed tomography (CT) scans and nuclear medicine procedures. Learn more about the report at American Association of Physicists in Medicine .