People are exposed to sources of radiation in all aspects of everyday life. Radioactive sources can be very useful but need handling carefully to ensure safety.
Supermarket fruit can be preserved by exposing them to…
What source is used often to provide the gamma radiation when irradiating fruit?
Radioactive powder being spilled onto clothing is an example of…
During irradiation, the object being exposed will…
Not become radioactive
Why might a radioactive source be injected into a patient?
To find blockages in arteries
To kill microbes
To find out how old they are
What is a gamma knife used for?
Cutting gamma rays
Targeting cancerous tumours to destroy them
Instead of a scalpel during operations
Whilst using a gamma knife, how do the medical staff protect themselves from the radiation?
Using lead shielding
By wearing aluminium foil hats
By wearing gloves
What effect can high doses of radiation have on the human eye?
What properties are most desired in an isotope used to investigate the kidneys which normally take 12 hours to process a contaminant?
Alpha emitter, half-life of 10 days
Gamma emitter, half-life of 6 hours
Gamma emitter, half-life of 10 days
Which of these is something that can be done to reduce the risk of exposure to radiation?
Hold the sources carefully
Limit the time spent being exposed
Keep the sources as close as possible