How is "contamination" defined in the context of radiation safety?

In the context of radiation safety, "contamination" refers to the deposition of radioactive material in areas where it is not wanted. This could occur in various environments, such as a laboratory, a medical facility, or even on clothing or skin, leading to potential exposure risks.

The understanding of contamination is crucial for ensuring safety protocols are in place to prevent spread and further exposure. This definition highlights the importance of monitoring and controlling radioactive materials to mitigate risks associated with their unintended presence.

In contrast, intentional use of radioactive materials is not considered contamination, as that implies a controlled and defined use case. Exposure to radiation from external sources relates more to radiation exposure rather than the presence of radioactive materials. Finally, the absorption of radiation by living tissues specifically deals with biological effects and not with materials being improperly located.