[ RadSafe ] CRT monitor radiation "scare" at Newark airport

[Doug Huffman]

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Barium, phosphorous and zirconium were used as 'getters' in vacuum tubes
of which cathode ray tubes are large examples.

On 12/20/2010 13:14, Cary Renquist wrote:
>  
> I'm a bit confused... 
> What sort of CRT emits radiation when it is not powered?
> Is NORM used in the tube?  
>  
> Cary
> --
> cary.renquist at ezag.com
> 
>
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