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This may be a pretty basic question ,but i'll through it out any way. As a project i built a muon detector from 2 matched PMTs and 2 4x6x1 plastic PVT scintillators. And pulse processing NIM modules. I was getting pretty good coincidence reading,some what less than predicted.ie ( 1 count/sqcm/min) However ,when I wanted to calibrate by using a small sample on strontium 90 (.5Mev beta ) i get no signal anywhere. I made sure there was no obstruction between it and the scintillator. Now from what i understand the average muon
energy at earth surface is around 2Gev. Im assuming the beta fully is stopped by the scintillator. Im not sure the bethe bloch formula is valid for the speed of the beta, So where should i be looking for this signal???
Should the gain be turned way down to see the beta? Im trying to get an idea of where the strontium signal is compared to the muons. Thanks j
energy at earth surface is around 2Gev. Im assuming the beta fully is stopped by the scintillator. Im not sure the bethe bloch formula is valid for the speed of the beta, So where should i be looking for this signal???
Should the gain be turned way down to see the beta? Im trying to get an idea of where the strontium signal is compared to the muons. Thanks j