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NAFV_P
on June 17, 2014
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How to Build a Home-Brew Radon Detector: Measure R...
Looking at the decay chain of U-238 [0], some of the descendants of radon-222 have extremely short half-lives.
[0]
http://en.wikipedia.org/wiki/Uranium-238#Radium_series_.28or...
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[0] http://en.wikipedia.org/wiki/Uranium-238#Radium_series_.28or...