[ RadSafe ] IBIS Sr-90 source construction

Ted de Castro tdc at xrayted.com
Tue May 24 22:39:41 CDT 2016

Well I guess it actually IS true that these days ALL knowledge can be 
gotten from Google!

To that end - just to see if - I used the Google search term "IBIS 
helicopter blade pressure indicators".  While NOT finding EXACTLY the 
information you are seeking I did see confirmation that the system uses 
Sr-90 sources, and reference to a few procedures for dealing with that, 
how much SR-90 they use and that it IS in a readily dispersible form 
(from a 1999 accident article) - and that's from just a cursory view of 
the first 4 or 5 links.

I wouldn't bet that deeper inspection would not find what you are 
seeking or at least a path to that information.

Ted de Castro

On 5/24/2016 2:04 PM, Rees, Brian G wrote:
> Does anybody on the list know the physical form of Sr-90 sources used in helicopter blade pressure indicators?
> Specifically, is it strontium titanate, or some other material with a low solubility?
> Thanks,
> Brian Rees
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