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![]() "Barry" wrote in message ... I know this is a very long shot, but I wondered if anyone has a geiger-muller tube lurking anywhere? Perhaps you may know of a supplier or have an old geiger counter that you may wish to dispose of? Mr G4 Not sure if you've seen these but... http://www.goldmine-elec-products.co...?number=G17365 That one only responds to Gamma radiation, not Alpha and Beta particles. A GM tube to detect all three has a different construction- in particular a thin window which will pass Alpha and Beta particles which normally are stopped quite easily. If the Geiger counter is for private/demo use then sources will be an issue. Alpha and Beta sources are quite common- smoke detectors use an Alpha source (can't recall the name) and "Tritium" lights (as found in some signs, compasses, watches etc.) are Beta sources. I don't recall any readily available sources of Gamma radiation- although it is used extensively in medicine. -- 73 Brian G8OSN/W8OSN www.g8osn.net |
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