Ways of using radioactive radiation in defence

Various military occupations, such as nuclear weapons technicians and dental technicians, include routine and usually safe exposure to radiation. During an explosion, pieces of depleted uranium used in tank armor and some bullets can scatter and embed in muscle and soft tissue.

Today, to benefit humankind, radiation is used in medicine, academics, and industry, as well as for generating electricity. In addition, radiation has useful applications in such areas as agriculture, archaeology (carbon dating), space exploration, law enforcement, geology (including mining), and many others.

the answer for apex is the lowest