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 2.GQ Geiger Muller Counter
 Calibrating Geiger Counter with Weak Sources		  New Topic  Reply to Topic
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RoseBL

USA
1 Posts
Posted - 11/26/2025 :  18:37:59  Show Profile  Reply with Quote
Hi everyone,
I recently bought a GQ Geiger Muller Counter and I’m trying to calibrate it using very weak radiation sources, like particles from soil samples or objects containing thorium. I don’t want to use strong sources for safety reasons. Has anyone tried calibrating in these conditions and could share their experience? I’m especially interested in ensuring accuracy when counting very rare particles.

Thanks!
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Reply #1

EmfDev

2369 Posts
Posted - 11/28/2025 :  17:56:28  Show Profile  Reply with Quote
If you know the dose rate of your sources, you can just plug it into the geiger counter calibration parameters and what CPM you get from them.
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Reply #2

takoankosi

USA
1 Posts
Posted - 12/02/2025 :  20:44:39  Show Profile  Reply with Quote
I don’t want to use strong sources for safety reasons. Has anyone tried calibrating in these conditions and could share their experience? I’m especially interested in ensuring accuracy when counting very rare particles.
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