In industry, radiation is the essence of nuclear energy. Radioactive elements are divided in the reactor core, emitting neutrons (radiation - including a neutron flux), which further participate in a chain reaction. At the same time, heating occurs, and then everything is like at a thermal station.
Rosatom also plans to sterilize bark beetles and mosquitoes in order to reduce their population by irradiation.
Of course, and you probably heard about the ways of using radiation in medicine.
For example, taking X-rays (which are now gradually being replaced by X-ray tomography) would be impossible if a person had not learned how to use radiation for their own purposes.
Among other things, radiation is often used in the treatment of cancer. Radiosurgery is also considered to be relatively innovative, thanks to which it became possible to perform surgical operations without creating any incisions on the patient's body.