Direct action may occur after exposure to any type of radiation,but it is much more likely to happen after exposure to

Question

Quizplus · Accepted Answer

Direct action is the result of the ionization of molecules in living tissue by highly energetic particles such as alpha particles, which have high linear energy transfer (LET). Low-LET radiation such as x-rays and gamma rays have a lower chance of directly causing damage in this way, while nonionizing radiation such as microwaves cannot cause direct ionization.

Direct Action May Occur After Exposure to Any Type of Radiation,but