RE: Radiometric forensics

["Bradshaw, Keith" <keith.bradshaw@niras.co.uk>]

The Pu-238/ Pu-239+240 activity ratio for Chernobyl was about 0.3, if memory

serves correctly.  This is far higher than bomb fallout, and will be to this

day, even though there's been time for significant decay of Pu-238 since the

event.  So the isotope activity ratio should be quite diagnostic.  But I

agree with Franz, it's not hopeful, because it seems unlikely there'll be

enough Pu to measure precisely.



Personal views only



keith.bradshaw@niras.co.uk



http://www.niras.co.uk



-----Original Message-----

From: Franz Schönhofer [mailto:franz.schoenhofer@CHELLO.AT]

Sent: 31 August 2004 21:23

To: 'E. van der Graaf'; radsafe@list.vanderbilt.edu

Subject: AW: Radiometric forensics









Franz Schoenhofer

PhD, MR iR

Habicherg. 31/7

A-1160 Vienna

AUSTRIA

phone -43-0699-1168-1319



Emiel,



I do not think, that in the year 2004 a proof is possible, that somebody

lived in the Chernobyl area - whether before or now. 



>CUT







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