Radiation which passes through a substance and is then deviated from its original direction is called _____ radiation.

The correct term for radiation that passes through a substance and is then deviated from its original direction is scatter radiation. This phenomenon occurs when incoming radiation interacts with matter, causing it to change direction. Scattered radiation is significant in radiologic technology as it can contribute to image noise and reduce image quality. Understanding scatter radiation is crucial for radiologic technicians, as they must implement strategies to minimize its effects on diagnostic images.

Collimated radiation refers to beams of radiation that are narrowed or directed to a specific area, rather than being scattered. Transmitted radiation refers to radiation that passes through a material without being altered or deviated. Reflected radiation describes radiation that bounces off a surface rather than passing through it or being scattered. Each of these terms describes different interactions of radiation with materials, highlighting the importance of understanding these concepts in radiologic practices.