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 2.GQ Geiger Muller Counter
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Discopotato

Australia
1 Posts
Posted - 05/05/2025 :  02:54:49  Show Profile  Reply with Quote
Hi everyone
I recently just bought a GMC-600 but when I trst against a uranium glass bowl I have the responds very well to black light the max reading im getting is 36cpm
I don't know, I no expert at all but shouldn't I be seeing atleast 500cpm on something like this?
Reply #1

ullix

Germany
1195 Posts
Posted - 05/05/2025 :  04:06:33  Show Profile  Reply with Quote
36 CPM is barely background, and could well be just electronic noise with a broken Geiger tube.

Can you try some other stuff as readio-source? Potassium, e.g. If you are unfamiliar, I suggest my article "Potty-Training" as a primer.
https://sourceforge.net/projects/geigerlog/files/Articles/
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