[ RadSafe ] Alphatron gauges

[Thomas Johnston]

Hello,
Yes, please do send photographs. Good detail to help identify!

Thomas

On Mon, Mar 15, 2010 at 11:50 AM, BRISSON Nicolas
<nicolas.brisson at irsn.fr>wrote:

> Hi all,
>
> I know there's already been some talks about this subject several years ago
> but for whatever reason I'm not able to go through radsafe archives.
>
> I'd like to know if these gauges contain radium sealed sources or not.
> I recently had to make an expertise on 2 gauges and the dose rate (several
> µSv per hour) didn't fit with the mentioned activity (500 µCi).
> But I found several metal plates (1cm per 1,5 cm) in a leaded container
> nearby with a dose rate of 9 mSv per hour at 1 cm. So I wondered if these
> plates could have been the gauges sources. The radium is not fixed on the
> plates.
> I can send some pics of the gauges and the plates for those who are
> interested.
>
> Nicolas Brisson
> IRSN/DEI/SIAR
> 31, rue de l'Ecluse
> 78116 LE VESINET
> FRANCE
> tel : +33 1-30-15-42-75
> por :  +33 6-08-76-55-32
>
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