Radiotherapy (Edexcel GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is radiotherapy used for?
What is radiotherapy used for?
To kill cancer cells
What are the two types of radiotherapy?
What are the two types of radiotherapy?
Internal and external therapy
What is the goal of radiotherapy?
What is the goal of radiotherapy?
Damage cancer cells, limit harm to healthy
How is internal radiation therapy delivered?
How is internal radiation therapy delivered?
By placing radiation inside the body
What property makes alpha radiation effective against tumours?
What property makes alpha radiation effective against tumours?
It is strongly ionising
What is the range of alpha particles?
What is the range of alpha particles?
Short range
How do beta particles compare to alpha particles in range?
How do beta particles compare to alpha particles in range?
Beta particles can travel further
What can beta emitters do that is useful in implants?
What can beta emitters do that is useful in implants?
Penetrate through the implant casing
What type of radiation is used in external radiation therapy?
What type of radiation is used in external radiation therapy?
Gamma rays
Why are gamma rays used in external radiotherapy?
Why are gamma rays used in external radiotherapy?
They can penetrate deep into the body
What happens to surrounding healthy tissue in radiotherapy?
What happens to surrounding healthy tissue in radiotherapy?
Some harm is unavoidable
Why are radiotherapy machines kept in designated rooms?
Why are radiotherapy machines kept in designated rooms?
To minimise exposure to people outside