Track of gamma ray in the cloud chamber
Why is the track of gamma ray in the cloud chamber look like a cloud ( i.e. like scribble)? and are the tracks bold like in alpha or faint like in beta and why too?
thanks
thanks
Gammas don't leave tracks - they only create one ion - what you see are the tracks formed by secondary electrons
Original post by teachercol
Gammas don't leave tracks - they only create one ion - what you see are the tracks formed by secondary electrons
I think it does..... it is even drawn in my book like the one in picture labelled Z
http://physics.stgabss.net/4E5N%20Sc%20Physics/Pics/Radioactivity/9.jpg
What you are seeing in z are the tracks of secondary electrons . The gammas are going down the clear bit in the middle.
When a gamma is absorbed it only creates one ion - but - the electron has almost all the energy of the gamma so it then creates the tracks that you see - and why they look like the tracks from betas.
When a gamma is absorbed it only creates one ion - but - the electron has almost all the energy of the gamma so it then creates the tracks that you see - and why they look like the tracks from betas.
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