www.savemyexams.co.uk/igcse/physics/cie/23/revision-notes/5-nuclear-physics/5-2-radioactivity/5-2-6-uses-of-radiation/
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Sterilising food (irradiating food to kill bacteria) Sterilising medical equipment (using gamma rays)
The alpha radiation will normally ionise the air within the detector, creating a current
A tracer is a radioactive isotope that can be used to track the movement of substances, like blood, around the body
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