Energy deposition is a research area that focuses on studying the transfer of energy from a source to a target, such as in the case of radiation therapy or particle interactions. This field aims to understand how different types of energy (such as electromagnetic radiation or ionizing radiation) interact with matter and how they deposit their energy within a material, tissue, or medium. By studying energy deposition, researchers can better understand the effects of radiation on biological systems, optimize medical treatments, and develop new materials for various applications.