Question

Certain exposures to radiation can cause cancer. What is the main difference between the use of radiation treatments to treat cancer and exposures that cause cancer?

Answer 1

the radiations that are used to treat cancers are of the gamma type. primarily emitted from cobalt-60 (a radioactive isotope).  and it is more controlled than other radiation exposures. i.e. solar radiation which is not controlled.

hope that this helps.