[ RadSafe ] Low background Shielding Material

[Susan Gawarecki]

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 
contaminants.

Susan Gawarecki