Radiotherapy (Edexcel GCSE Physics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
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 main types of radiotherapy?
What are the two main types of radiotherapy?
Internal and external
Where is radiation placed in internal radiation therapy?
Where is radiation placed in internal radiation therapy?
Inside the body
What does it mean that alpha emitters are strongly ionising?
What does it mean that alpha emitters are strongly ionising?
They do a lot of damage to tumour cells
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 travel distance?
How do beta particles compare to alpha particles in travel distance?
Beta can travel further
What can beta particles penetrate in internal therapy?
What can beta particles penetrate in internal therapy?
The casing of the implant
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 therapy?
Why are gamma rays used in external therapy?
They penetrate deep into the body
What is the goal of radiotherapy?
What is the goal of radiotherapy?
Damage cancer cells while limiting harm to healthy cells
How are operators protected from radiation in external therapy?
How are operators protected from radiation in external therapy?
Machine shielding
What is unavoidable in external radiation therapy?
What is unavoidable in external radiation therapy?
Some harm to surrounding tissues