Bit of an odd ball question .
I Know roughly how a Geiger Muller tube works .
But does does anybody know how you can actually test a GM counter works ?
If I had a very old luminous watch the Radium would be detectable by the counter and it would click and show somes counts per second .
But luminous dials do not use Radium anymore .
So what can you use to see if it works ?
thanks
Barry Wilkins
I Know roughly how a Geiger Muller tube works .
But does does anybody know how you can actually test a GM counter works ?
If I had a very old luminous watch the Radium would be detectable by the counter and it would click and show somes counts per second .
But luminous dials do not use Radium anymore .
So what can you use to see if it works ?
thanks
Barry Wilkins
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