B Cloud Chambers - I to know what particle this is

edusmartin
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I need help to identificate a particle
Hi, my son is fan of the Quantum Physics and we developed a cloud chamber. I'm attaching an image of particle sequence and I will like to find some help to know witch particle is. I will appreciate any help on it. Thanks
 

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It must be charged particles so beta or alpha. Beta has longer and thinner tracks. ref.
 
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Thanks so much @anuttarasammyak !
 
Also, it's not uncommon to see muons (and occasionally other cosmic ray related particles) in a cloud chamber.

The average flux of muons at sea level is about 1 per square centimeter per minute.
 
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