Exposure to radiation energy is known as?

• A. Toxicology
• B. Contamination
• C. Acute Radiation Syndrome
• D. Irradiation

Answer: (D)

Exposure to radiation energy is described as irradiation. This term refers to the process of exposing something to energy from ionizing radiation, whether from an external source like X-rays or gamma rays. It doesn’t require radioactive material to be present on or inside the person. Contamination, on the other hand, means radioactive material is on surfaces or within the body, which can lead to exposure through emitted radiation but is a different concept. Acute Radiation Syndrome is the illness that can result from high-dose exposure, and toxicology is the study of toxic substances in general, not specifically radiation exposure. So irradiation best captures the idea of being exposed to radiation energy.