Testing the Radex RD1706 with a few uranium glass marbles. This glass contains 2% uranium (by weight) and it is fluorescent under UV light.
More on this glass here: http://en.wikipedia.org/wiki/Uranium_glass
More details about this dosimeter on my blog at:
http://www.pocketmagic.net/?p=1200
What is your background radiation without the marbles?
RashtraVishnu 10 months ago
@RashtraVishnu 0.10uSv/h
radumotisan 10 months ago