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AW: Dirty bombs
Diffusion of cesium might be less of a problem than sorption of cesium.
Cesium does sorb on many materials much stronger and by different mechanisms
than sodium. Quite some research has been done in Europe on decontamination
of urban environments and results have been published, in particular after
Chernobyl.
Frits van Dorp
Nagra
Wettingen
Switzerland
e-mail: vandorp@nagra.ch
> -----Ursprüngliche Nachricht-----
> Von: BERNARD L COHEN [SMTP:blc+@PITT.EDU]
> Gesendet am: Freitag, 28. Februar 2003 15:30
> An: Tom Hazlett
> Cc: Tom Mohaupt; internet RADSAFE
> Betreff: Re: Dirty bombs
>
>
> On Thu, 27 Feb 2003, Tom Hazlett wrote:
>
> > My understanding is that Cs diffuses into concrete. That makes it
> > impossible to wash away.
>
> --Does cesium diffuse into concrete more rapidly than sodium? We
> spread enormous quantities of NaCl for de-icing purposes, and it seems to
> wash away rapidly, even without human effort such as hosing.
> Do you know a reference on Cs diffusing into concrete?
>
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