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Need some easy physics help: Which of these radiation does the most damage?

A

amdguy

Banned
Compared to gamma and X-rays, which one is more dangerons?

How about a single neutron? On my lecture slides it say it can pass throught lead and concrete.

Compared to Alpha and Beta particles, which one does more radiation damage?

I am quiet confused lol...plz help
 
umm... yah, i think you are quite confused.. as am i..

i'm pretty sure gamma rays are more dangerous, because that's how the fantastic 4 became fantastic right??
 
It's not quite as simple as it seems. Strictly speaking, alpha radiation does the most damage even though it's the lowest energy. But alpha is so easily blocked that you'd basically have to ingest an alpha source for it to do anything. Beta has higher energy than alpha, and so can pass through several cm's of material. Gamma is the highest energy of the three and so can pass through lead to a degree, but because it's so high energy it doesn't really interact with your tissue. So technically, alpha is the most dangerous, but beta is considered more dangerous under normal circumstances because it's powerful enough to pass through material, but lacks enough power to go through your cells without interacting. X-rays are less powerful than gamma, but more powerful than beta, so they're less dangerous than beta radiation, but more dangerous than gamma.
 
Originally posted by: IamElectro
Originally posted by: Heisenberg
Originally posted by: IamElectro
Originally posted by: Mik3y
gamma rays are way more dangerous.
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ding ding ding
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Sorry guys, that's wrong. Beta is more dangerous than gamma, as it's lower energy will mean it has more interaction with the material in your cells.
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Beta can be blocked with aluminum foil.



Check out this site.
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Yeah, I know that beta can be blocked fairly easily. Gamma rays are more penetrating than beta obviously, but that doesn't mean they're more dangerous. Gamma rays are so high energy they will go right through your body and not interact. Beta is low enough energy it will interact more easily, and so do more damage.
 
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