Final answer:
A medium dose of radiation ranges from 0.1 to 1 Sv and is used in various medical diagnostics and treatments, like CT scans and targeted cancer radiotherapy.
Step-by-step explanation:
A medium dose of radiation is defined as a dose ranging from 0.1 to 1 Sv (10 to 100 rem). These doses are used for various medical purposes, including certain diagnostic tests and cancer treatments. For instance, typical chest X-rays deliver about 0.1 mSv, which is considered low, while CT scans can go up to about 10 mSv. Certain medical imaging with radiopharmaceuticals fall into the medium dose category, delivering 1 to 5 mSv. Therapeutically, for cancer treatment, protocols often involve three to five 200-rem treatments per week over several weeks, specifically targeted to combat malignancy while minimizing harm to surrounding healthy tissue.