> Idea: Use pieces of lead sheeting to shield the RAM chips from cosmic radi... | Hacker News

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		anamax on June 24, 2010 \| parent \| context \| favorite \| on: Attack of the cosmic rays: Undetected memory error... > Idea: Use pieces of lead sheeting to shield the RAM chips from cosmic radiation. It's really difficult to find lead that doesn't emit various particles itself. (Yup, lead has radioactive isotopes.) IIRC, there have been memory/logic errors traced to radioactive particles from solder, perhaps even the lead. (This was back in the days when solder contained lead.)

dhughes on June 25, 2010 [–]

Italy is using ancient Roman lead ingots, which have lost most of their natural radioactivity, in their CUORE neutrino experiment.

http://www.physorg.com/news190646406.html

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