Which type of contamination is described as very small but highly radioactive?

Which type of contamination is described as very small but highly radioactive?

• A. Fixed Contamination
• B. Loose Contamination
• C. Frisker
• D. Discrete Radioactive Particle

Answer: (D)

A discrete radioactive particle is a very small piece of radioactive material that carries a high level of activity. Its tiny size means it can travel easily, potentially being inhaled or ingested, while still containing a lot of radioactivity in that single particle. This distinguishes it from fixed contamination, which clings to surfaces and isn’t easily removed, and loose contamination, which is more easily spread across larger areas or through contact. A frisker is a handheld instrument used to detect contamination, not a type of contamination itself. So the description fits a discrete radioactive particle, often referred to as a hot particle.

A discrete radioactive particle is a very small piece of radioactive material that carries a high level of activity. Its tiny size means it can travel easily, potentially being inhaled or ingested, while still containing a lot of radioactivity in that single particle. This distinguishes it from fixed contamination, which clings to surfaces and isn’t easily removed, and loose contamination, which is more easily spread across larger areas or through contact. A frisker is a handheld instrument used to detect contamination, not a type of contamination itself. So the description fits a discrete radioactive particle, often referred to as a hot particle.