Uses and dangers of radiation

Question 1

Supermarket fruit can be preserved by exposing them to…

Answer 1

Gamma radiation

Question 2

What source is used often to provide the gamma radiation when irradiating fruit?

Answer 2

Colbalt-60

Question 3

Radioactive powder being spilled onto clothing is an example of…

Answer 3

contamination

Question 4

During irradiation, the object being exposed will…

Answer 4

not become radioactive

Question 5

Why might a radioactive source be injected into a patient?

Answer 5

to find blockages in arteries

Question 6

What is a gamma knife used for?

Answer 6

Targeting cancerous tumours and destroying them

Question 7

Whilst using a gamma knife, how do the medical staff protect themselves from the radiation?

Answer 7

Using lead sheilding

Question 8

What effect can high doses of radiation have on the human eye

Answer 8

Causes cataracts

Question 9

hat properties are most desired in an isotope used to investigate the kidneys which normally take 12 hours to process a contaminant?

Answer 9

Gamma emitter with a half life of 6 hours

Question 10

Which of these is something that can be done to reduce the risk of exposure to radiation?

Answer 10

Limit time being exposed