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GCSE

Measuring and Detecting Radioactivity

Question

Why is alpha radiation not used for external radiation therapy?

2 years ago

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1 Reply

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1354 views

M

Marty Farrell


1 Answer

M
Mahmoud Mrihel

That is because alpha particles cannot penetrate through the thick layer of the skin, and hence external therapy would be useless, as aiming the alpha radiation from outside the skin, means that they wouldn't be able to enter the body due to the coat of skin around it.

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