Which type of radiation poses the greatest hazard to the operator?

Leakage radiation is considered the greatest hazard to the operator because it refers to any radiation that escapes from its intended path, such as from the imaging equipment. This type of radiation can expose operators to unnecessary doses since it is not controlled or focused like primary radiation. As operators usually work near or around the equipment, they are at risk of being exposed to this radiation if proper shielding and safety protocols are not in place.

Primary radiation is directed and intended for use in imaging or treatment, making it easier to anticipate and control exposure risks. Collimated radiation is highly focused and typically has less exposure potential due to its targeted nature. Scatter radiation, while also a concern, generally has less intensity than leakage radiation and can be mitigated through appropriate shielding and distance from the source.

Understanding the risks associated with each type of radiation helps in implementing effective safety measures, with leakage radiation being a primary focus due to its potential to exceed safe exposure limits without operator awareness.