What type of radiation is primarily emitted during the decay of certain isotopes used in medicine?

Gamma radiation is primarily emitted during the decay of certain isotopes used in medicine. This type of radiation is highly penetrating and can travel significant distances through various materials, including human tissue, making it useful for diagnostic imaging techniques like PET scans and for therapeutic applications in cancer treatment.

Many medical isotopes, such as Technetium-99m and Cobalt-60, emit gamma radiation as they decay. This characteristic allows healthcare providers to use these isotopes for imaging and therapy, as the gamma rays can be detected and helpful for diagnosing or treating conditions without significantly affecting surrounding tissues.

In the context of medical applications, the properties of gamma radiation enable clearer images and targeted treatments, which are crucial for effective patient care. Other types of radiation, while potentially used in various contexts, do not have the same penetrating ability or practicality for routine medical imaging as gamma rays do.