Medical Uses of Radiation (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which element is commonly used as a medical tracer?
Which element is commonly used as a medical tracer?
Technetium
What is the half-life of technetium?
What is the half-life of technetium?
6 hours
Why is technetium's half-life ideal for medical imaging?
Why is technetium's half-life ideal for medical imaging?
Long enough to detect, quick to decay
What type of radiation does technetium emit?
What type of radiation does technetium emit?
Gamma
Why is gamma radiation effective for medical imaging?
Why is gamma radiation effective for medical imaging?
It passes through tissue unabsorbed
What does technetium decay into?
What does technetium decay into?
A harmless isotope
Which type of radiation is used in chemotherapy?
Which type of radiation is used in chemotherapy?
Gamma rays
How do gamma rays destroy cancer cells in chemotherapy?
How do gamma rays destroy cancer cells in chemotherapy?
Cells absorb radiation & are destroyed
Why can chemotherapy cause side effects?
Why can chemotherapy cause side effects?
It can affect nearby healthy cells
Why does technetium cause minimal harm during imaging?
Why does technetium cause minimal harm during imaging?
Gamma emission passes through tissue