Contamination vs Irradiation - Summary - GCSE Physics
Channel: Kit Betts-Masters
Date: 2021-01-21

Contamination – radioactive material becomes present on other materials.  A contaminated object becomes a source of radiation once a contaminating source is removed.  
Contaminated objects become radioactive!
Irradiation – exposure to radioactive particles.  An irradiated object does not become a source of radiation when an irradiating source is removed.
Irradiated objects do not become radioactive!

We need to take appropriate precaution when dealing with radiation.  This usually comes down to limiting time of exposure and appropriate shielding, depending on the type of irradiation.  Precaution must be taken to avoid contamination.

We need to publish the findings of studies into the effects of radiation on human beings to allow them to be peer reviewed.
Peer review is when other scientists check the results and conclusions of scientific reports.  


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