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How to make a Geiger Counter?

Ok so I just read the book "The Radioactive Boyscout" and I am now interested in making a geiger counter. How would I go about doing this? I mean I am pretty sure gas is used somehow to measure radiation and such but how is it done? It cant be that hard can it? and where and what could I test it on, I was thinking possibly an old radium clock maybe ? HELPZ

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mr_man4 years ago
http://electronicdesign.com/article/test-and-measurement/simple-geiger-detector-uses-neon-glow-lamp1634
static5 years ago
Google Kearny fallout meter. The KFM is what it is, nothing more. Just an expedient method for citizens to determine if it's safe to come out of their shelter after a nuclear event. The creator of the KFM, and others say when constructed as direct edit needs no calibration, and is quite accurate. That includes those who have refurbished cold war era CD Geiger counters to sell to you.Probably not the fancy Dan electronic device you are looking for, sorry...
static5 years ago
Check Electronic Goldmine. Today's 3/18/2011 email flier had several GM options. They use to have a schematic on their website as well.
jackillac92 (author) 8 years ago
I did that and I got nothing!
. I get 8,860 hits. Most on the first page tell you what you want to know. In a nutshell, you place two charged electrodes in a gas that ionizes when irradiated. The amount of current passing through the electrodes is proportional to the amount of ionization/radiation.
. The Wikipedia page is a little weak, but maybe some of the patent links will help.
jackillac92 (author)  NachoMahma8 years ago
Ok if there are SOOO many good sites then show me one that gives me an easy circuit diagram and pictures of it being built.
. Pfffffttt
jackillac92 (author)  NachoMahma8 years ago
Whats that suppossed to even mean?
. That's the sound one makes when exhaling sharply with the lips held loosely together. It means, that, unlike westfw, I'm not willing to do all your research for you. . Fourth hit on the list and you're too lazy to look that far? Pfffffffttt
How about that sound when you stick out your tongue? Rssssssssssssssp
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