In reply to Jed Rothwell's message of Mon, 21 May 2018 11:00:54 -0400:
>Russ <russ.geo...@gmail.com> wrote:
>Might you point to a reference where the mass of neutrons in deuterium vs.
>> other nuclides is said to be different.
>I do not understand. Is the claim here that a neutron in deuterium is
>heavier or lighter than a neutron in some other element?
Yes (heavier), that's what I'm suggesting.
> There are
>different kinds or neutrons, or entering deuterium changes the mass?
The latter. The energy release from the nuclear reaction has to came from
somewhere. I am simply saying that it comes from the conversion of part of the
mass of the constituent particles.
>That seems extremely unlikely to me.
Then you need to explain where the fusion energy comes from. (I'm counting
addition of a neutron to a nucleus as a form of fusion).
Note that the formation of D from a free proton & a free neutron releases only
2.2 MeV of energy whereas at the other extreme, addition of a neutron to a Ni
nucleus releases about 8 MeV of energy. Hence my conclusion that neutrons in Ni
have lower mass than those in D.
Robin van Spaandonk
local asymmetry = temporary success