[ RadSafe ] Ra-226 Static Eliminator Bar

BRISSON Nicolas nicolas.brisson at irsn.fr
Tue Apr 12 09:04:01 CDT 2011

Hi all,


2 years ago we had a short discussion about radium-226 static eliminator bar (excerpt below).
At that time I could only find the article mentioned below.

Last week I found a static eliminator bar from US Radium Corp. 

As the dose rate ranged from 1 mSv/h to 1,6 mSv/h between 5 and 0 cm from the bar, we didn’t spend too much time studying it at close range. So I would be interested in layouts or any information available about these bars



Nicolas Brisson
route du Panorama
tel : +33 1-58-35-87-24
por :  +33 6-08-76-55-32


From: BRISSON Nicolas <nicolas.brisson at irsn.fr>
To: radsafe at radlab.nl
Sent: Wed, 28 October, 2009 20:58:57
Subject: TR: [ RadSafe ] Ra-226 Static eliminator bar

Hello all,

I don't have much information on this topic but you can find an article at the web address below.
American Journal of Public Health (August 1950) :


In this article you can read that these static eliminator bars contained 25 or 50 µg of radium 226 per linear inch.
Some Ionotron with radium 226 were manufactured by US Radium Corps.

In France, you could buy a ionotron t.200 for around 20€ in 1960. 
For a total length of 15 cm, the active part had a length of 5 cm. In the safety sheet given with the ionotron, it was said that you were at the safe distance from the ionotron at 25 cm. Remember though that it was in 1960...

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