Cambridge O Level Physics · Syllabus 5054 · Nuclear Physics
Radiation Safety Precautions
What is Radiation Safety Precautions?
Ionising nuclear radiation harms living things by removing electrons from atoms in cells, causing cell death, mutations that may be inherited, and cancer. Dose is reduced in three ways, and a precaution only counts if it names one of them: reduce the exposure time, increase the distance between the source and living tissue, and use shielding of a material thick enough to absorb the radiation emitted.
This definition is part of the Nuclear Physics chapter in Cambridge O Level Physics.
Last reviewed Syllabus 2026-2028

