Dangers of EM waves
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FlashcardsWhy are high frequency waves dangerous?
have a lot of energy so can knock out electron- very ionising
can cause gene mutations, destroy cells, cancers
How are UV dangerous?
cause skin to age prematurely
blindness
increased risk of skin cancers
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6 Terms
Why are high frequency waves dangerous?
have a lot of energy so can knock out electron- very ionising
can cause gene mutations, destroy cells, cancers
How are UV dangerous?
cause skin to age prematurely
blindness
increased risk of skin cancers
Radiation dose
measure of risk of harm from radiation measured in sieverts
How is radiation dose different for different areas of the body?
areas protected by bones will have lower radiation dose e.g. skull protects head
How is protection sized up?
time exposed
distance
shielding
How do radiographers protect themselves from radiation?
lead aprons
stand behind lead screens
leave room