Where is a beta-emitting implant placed to deliver radiation to a tumour?
Inside or close to the tumour.
AQA A-level Physics (7408) · 3.10.6.5
Revise AQA A-level Physics (7408) specification point 3.10.6.5, Use of radioactive implants (A-level only), with free active-recall flashcards. Flip through the set or review every question and answer below.
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Where is a beta-emitting implant placed to deliver radiation to a tumour?
Inside or close to the tumour.
How can beta particles prevent cancer cells from multiplying?
They damage cells, including their DNA, which can prevent division or cause cell death.
Why does a beta-emitting implant reduce radiation exposure to healthy tissue farther away?
Beta particles have a limited range in tissue, so the dose is concentrated near the implant.
What risk does a beta-emitting implant pose to nearby healthy cells?
They can still be damaged by the radiation.