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Radiation in Medicine
|How is visible light used for diagnosis
|How are X-Rays used for diagnosis
|X-ray photography & CAT scanners
|How are gamma rays used for diagnosis
|How is Ultra-sound used for diagnosis
|Why are some types radiation ionising?
|They create reactive ions in the body which can be dangerous
|Which of radiation can be used to damage and destroy cancer cells?
|Gamma-Rays & X-rays
|How can types of non-ionising radiation be used in treatments?
|Lasers can be used in eye surgery and absorption of ultra-sounds can be used to treat swollen tissues ( Visible Light & Ultra-sound)
|What happens to the intensity of radiation as it moves further away from the source?
|What other factor is intensity affected by?
|The medium that the radiation is travelling through
|How do you calculate intensity?
|Intensity = Power of incident radiation/area
|What is the unit of intensity?
|Watts per square metre(W/m^2)