[Milsurplus] Milsurplus Radiation

[Peter Gottlieb]

*Something* penetrates the glass.  I get 3-4 mR on a calibrated 
AN/PDR-27 right through the glass with the shield open, almost nothing 
with the shield closed.

Peter


Scott Johnson wrote:

> These are all alpha emitters- not dangerous unless you snort or 
> swallow the paint. They can't even penetrate the glass.   I may be 
> wrong, but I believe most of the radioactive paint was discontinued 
> early in WWII, R-390 meters that I have seen are simply 
> phosphorescent, with out the isotope to excite it.  They just use a 
> phosphor with an exceptionally long persistance.  Later on tritium gas 
> was used in the lensatic compasses and GI watches and sights in a 
> closed cell with phosphor on the surface to cause a glow.  The tritium 
> is safer than the solid isotopes, since it just disperses if the 
> little ampule is broken.
>
> Scott
>
> windy10605 at juno.com wrote:
>
>> Has anyone ever measured the radiation levels from sources ....like R390
>> meters, military compasses, altimeters, scopes, etc ? and compared that
>> against what is really acceptable or not ?
>>
>> I'd like to see some hard data and facts.
>>
>> 73 Kees K5BCQ
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