uses of radiation Flashcards
1
Q
what is alpha particles used in
A
smoke detectors
2
Q
what can beta and gamma particles be used for
A
tracers in medicine
3
Q
what is an example of a radioactive isotope in medicine tracers
A
iodine- 131 absorbed into the thyroid gland
4
Q
why are beta and gamma used in medicine tracers
A
so they can pass out the body quickly
5
Q
what else can gamma be used in
A
- radiotherapy to treat cancer
- sterilisation of food
6
Q
why is gamma used to treat cancer
A
because it kills living cells
7
Q
why can gamma be used to sterelise foods
A
because it kills microbes and keep the food fresh for longer
