Re: Fe-60, can it occur in NPReactors?

["Frank Helk" <frank.helk@nis-hanau.de>]

Hello Sandor,



>pls help if you can re this exotic nuclide: Fe-60. Does it occur 

>in Nuclear Power Reactor waste, or core (fuel rod deposition)? 

>How can it appear? In the sixth edition (1967) of Lederer-Hollander-Perlman's 

>Table of Isotopes there is hardly any information. Because of its 

>59 keV (Co-60m) gamma decay could be easily identified as Am-241 

>by the gamma spectrometer software, causing discrepancy with the 

>alpha counts of the same smear sample population. 



I wouldn't expect it to be in any kind of "normal" radioactive waste resulting from a NPP.



I've asked the OECD/NEA provided JANIS package (highly recommended 

and free); it tells as generation way "From proton-induced spallation of copper 

at EP=400 MeV."; this a very uncommon reaction in NPPs.



It also tells a fission yield (probability to get it as result of a fission) of lower than 1E-11.



The only way to produce it by decay would be from Mn-60, which is very uncommon either.



I think it would be a wonder if you find it anywhere besides of some exotic research sites.



Best regards



	Frank



P.S.: For JANIS, please surf to http://www.nea.fr and look out for it. They even distribute the databases on CD for free under certain circumstances.





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