Radiation modeling is a research area that involves the mathematical modeling and simulation of the interaction of radiation with matter. This includes the study of how various types of radiation, such as electromagnetic radiation or particle radiation, are absorbed, scattered, and emitted by different materials. Radiation modeling is used in a variety of fields, including nuclear physics, medical imaging, environmental science, and astrophysics. Researchers in this area develop computational models and algorithms to predict the behavior of radiation in different scenarios, and to better understand the effects of radiation on biological systems and the environment.