Re: Chart of the Nuclides

[Brian_Gaulke@hc-sc.gc.ca]

Brian Gaulke
01/27/98 01:25 PM

My response didn't imply an effect on the mass yield, only that, because
the yield is into the lower neutron number mass 135 isotopes, which must
then decay via Xe-135 to produce Cs-135, the yield of Cs-135 will
necessarily be lower than indicated by the mass yield because some of the
original mass 135 atoms will end up as mass 136 due to neutron absorption
by Xe-135.





dale @ radpro.uchicago.edu on 98/01/27 12:39:09

Please respond to radsafe@romulus.ehs.uiuc.edu

To:   radsafe @ romulus.ehs.uiuc.edu
cc:    (bcc: Brian Gaulke)
Subject:  Re: Chart of the Nuclides





Xe-135 is an interesting wild card.  It has a huge neutron capture
cross section, and has the potential to prevent a reactor from
staying critical.  However, it has no effect on the mass yield listed
in the table.