A member asked:

Can things only become radioactive, if particles of something radioactive get on something?

A doctor has provided 1 answer
Dr. Rachel Chastanet answered

Specializes in Bariatrics

Yes: Physical particles which are radioactive can get on or in people or things, thus rendering the person or thing also radioactive. In contrast, a person or thing which is exposed to radioactivity (such as by getting an x-ray) is only exposed to the energy, not the particles, so does not become radioactive. It's sort of like the difference between getting poop on your shoe vs. just smelling poop.

Answered 8/28/2014

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