B Cloud Chambers - I to know what particle this is

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A user seeks assistance in identifying a particle observed in a cloud chamber developed with their son, who is interested in quantum physics. The discussion highlights that the observed particles are likely charged, specifically beta or alpha particles, with beta particles producing longer, thinner tracks. Additionally, muons are mentioned as common observations in cloud chambers, with an average flux of about one muon per square centimeter per minute at sea level. The community offers insights into particle identification based on track characteristics. This exchange emphasizes the educational value of hands-on experiments in understanding particle physics.
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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