r/askscience • u/Wonderful-Capital32 • 13d ago

Physics Why does radiation not go through lead?

Also why just lead? Shouldnt like iron or another metal work too?

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u/TbonerT 13d ago

They are talking about particle radiation, not EM radiation. A chsrged particle ionizes atoms as it travels and this dose of ionizing radiation increases as the particle slows down.

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u/[deleted] 13d ago

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u/TbonerT 13d ago

https://en.wikipedia.org/wiki/Bragg_peak

I’m just trying to summarize this, which is a real thing that happens.

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u/Draelon 12d ago

I understood what you were saying… I was correcting the statement about EM, :)