Flashcards in Dangers Of Electromagnetic Waves Deck (11):
What are the effects of each type of radiation based on?
How much energy the waves transfer
What is the effect of low frequency waves and an example?
Don’t transfer much energy and pass mostly through soft tissues without being absorbed
What is the effect of high frequency waves and examples?
UV, X-Ray, Gamma Ray
Transfer lots of energy so can cause lots of damage
What does UV radiation do to tissue?
Damages surface cells, which leads to sunburn and can cause skin to age prematurely, it can also cause blindness and an increased risk of skin cancer
What types of radiation are X-Rays and Gamma Rays and what can they cause?
Can cause gene mutation or cell destruction and cancer
What is radiation dose and what is it measured in?
A measure of the risk of harm from the body being exposed to radiation
Measured in sieverts
What is radiation dose not a measure of?
The total amount of energy that has been absorbed
What does risk depend on?
• The total amount of radiation absorbed
• How harmful the type of radiation is
1Sv = ????mSv
1Sv = 1000mSv
What does a CT scan use?
X-Rays and a computer to build up a picture of the inside of the body