 cheap geiger counter?
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James
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Registered Member #3610
Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506
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You can get Russian GM tubes for ~$20 on ebay, so until those run out, why even bother trying to cook something up?
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Conundrum
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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
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Or make your own using a vacuum pump, suitable tube, epoxied on mica window and some commercial argon for welding.
Total cost is probably less than a single end window tube as the vacuum needed is only 1% which is well within the requirements of even a single stage pump salvaged from a defunct air conditioner or even a car aircon system.
Also, any old CMOS camera with its glass removed will detect alphas as I rediscovered a few years back.
-A
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