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Another little tidbit of information...
Some time ago, the Feds set up an inspection station just west of Atlanta for all big rigs.They had to drive thru a radiation scanner that was to check for nuclear material that terrorists may try to smuggle in. They didn't find any nuclear material but they did find that the phosphors on color crt's would give a little reading on the scanner.
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#17
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Quote:
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Mom (1938 - 2013) - RIP, I miss you Spunky, (1999 - 2016) - RIP, pretty girl! Rascal, (2007 - 2021) RIP, miss you very much |
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So, I bought a $1 alarm clock at dollar tree, and put its hands on the Panasonic. Looks pretty good, and I don't have to wonder... still need to borrow the Geiger counter though!
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I'm amazed that CRT phosphors are radioactive, but then if bananas are then one shouldn't be surprised at anything. |
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Wikipedia:
https://en.wikipedia.org/wiki/Isotopes_of_europium It says the half life of the natural isotope 151Eu is 5x10^18 years - 1 alpha decay per two minutes per kilogram - so it wasn't realized it was unstable originally and they must be detecting low levels indeed. In fact, since alpha rays are easily stopped by the flimsiest shielding, I wonder if they aren't detecting a different type of radiation from some other elemental impurities in the Europium. |
Audiokarma |
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Ironic that this came up now. I just bumped into this on the 'net the other night:
https://www.unitednuclear.com/index....roducts_id=384
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"Restoring a tube TV is like going to war. A color one is like a land war in Asia." |
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Similar to this? Alkaline Rare Earth Metal Silicate-Aluminate Oxide Europium Doped
Was thinking about getting some to re-do the markers and hands on my recently acquired Jefferson Golden Hour clock. |
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I never eat bananas.
Saw a video on Youtube (or somewhere) where a man was checking radioactivity of rainwater collected in a paper plate. This was in Iowa or Missouri shortly after the Fukishima event. I have since learned radioactivity has been discovered in rainwater in all 50 states.
How well can you local municipality filter that out?
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There is background radiation everywhere. Mostly from natural causes. If you live in a city built on granite your background radiation dose will be much higher than most. Still harmless.
What's more of a problem is radon. In some areas where the rocks contain a significant amount of radium the radon that it produces can build up in basements. This can be a very real hazard. The cure is simply ventilation. In the UK the worst affected area is Cornwall, in the far southwest. This article is a good and sensible view of the subject: http://www.independent.co.uk/life-st...e-2047987.html If you live near here then your background dose is likely to be a lot higher: https://en.wikipedia.org/wiki/Natura...ission_reactor I don't think there's any practical way of removing radioactivity from the water supply and if it's only at background levels or slightly above there's no hazard anyway. |
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