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Re: Microcontrollers exposed to X-Ray Beam

by Spehro Pefhany :: Rate this Message:

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Quoting Jinx <joecolquitt@...>:

>> Can you not put some lead over the centre of the package, to
>> protect the chip from X-Rays?
>
> That's what I was thinking, and the obvious first line of defence
>
> "Recommended Thickness of Lead Shielding for X-Ray Rooms"
>
> Tables -
>
> http://www.alchemycastings.com/lead-products/sheet.htm
>
> A doctor says -
>
> http://hps.org/publicinformation/ate/q44.html

I might suggest tungsten (or gold) as somewhat slightly less effective  
(for a given thickness), but RoHS-compliant alternatives. ;-)

Best regards,
Spehro Pefhany
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