Medical Uses of Radiation (AQA GCSE Physics): Flashcards
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Element used as medical tracer
Element used as medical tracer
Technetium
Half-life of Technetium
Half-life of Technetium
6 hours
Why Technetium's half-life is ideal
Why Technetium's half-life is ideal
Allows detection but decays quickly to minimise exposure
What Technetium decays into
What Technetium decays into
Harmless isotope body can safely excrete
Type of radiation Technetium emits
Type of radiation Technetium emits
Gamma
Why is gamma good for imaging
Why is gamma good for imaging
Passes through tissues without being absorbed
Benefit of gamma emission in medicine
Benefit of gamma emission in medicine
Effective imaging with minimal harm
Radiation type used in chemotherapy
Radiation type used in chemotherapy
Gamma rays
Purpose of gamma rays in chemotherapy
Purpose of gamma rays in chemotherapy
Target and destroy cancerous cells
How gamma rays destroy cancer cells
How gamma rays destroy cancer cells
Cells absorb radiation, leading to destruction
Problem with gamma ray chemotherapy
Problem with gamma ray chemotherapy
Can affect nearby healthy cells
Why chemotherapy causes side effects
Why chemotherapy causes side effects
Difficulty targeting rays precisely