[ RadSafe ] Low background Shielding Material

Susan Gawarecki loc at icx.net
Tue Jun 13 12:07:43 CDT 2006

Franz wrote:

>Rust is an excellent scavenger for radionuclides and especially Cs-137. I experienced this also during my work on Mururoa and Fangataufa: Exposed stainless steel objects showed no contamination, while rusty iron did.
This is why iron filings are one of the preferred fillings for trenches 
designed to intercept and treat contaminated groundwater.  The iron 
oxide will bind to and remove a variety of organic and metallic 

Susan Gawarecki

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