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17 mar 2017

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O que significa "Enter Cesium-137" as an article title ?

Enter Cesium-137

In April 2005, Elroy approached a French laboratory researcher who was using low-level gamma ray detection for Cesium-137 (Ce-137) to date wine. Ce-137 is a product of fission and didn’t exist on this planet until the explosion of the first atomic bomb.

That radioactive fallout, which is dispersed into the atmosphere, eventually makes its way into rain, soil and grapes. The French researcher protected the bottle with lead shielding and placed it close to a detector, which recorded the presence of gamma rays. He conducted the test one mile underground to additionally shield the bottle from normal atmospheric gamma radiation.
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