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Terry On Sun, Jun 8, 2008 at 6:32 PM, Harry Veeder <[EMAIL PROTECTED]> wrote: > > > > Hello Harry, > > I sent a response to your message (it is appended). I get an ACCESS > DENIED message when sending to vortex-l, [EMAIL PROTECTED], > or [EMAIL PROTECTED] Could you post this for me? Thanks. > > > On Jun 8, 2008, at 10:39 AM, Harry Veeder wrote: > [snip] >> For safety reasons, the reactors were designed to have a negative >> power >> coefficient reactivity value. It was expected to be 0.12 mk/MW. In >> June >> 2003, it was measured at +0.28 mk/MW. >> > [snip] >> Yet, no amount of analysis, fiddling or technological repair has >> resolved >> the deviation from original design. Tests in 2007 achieved the >> exact same >> +0.28 mk/MW measurement. > > The reactor uses a D2O-reflected core. It seems unlikely, but I have > to wonder if they ignored the frequency of neutron spallation: > > n + D -> n + n + p > > Horace Heffner > > > > > >
