In reply to Jones Beene's message of Tue, 5 May 2015 07:23:23 -0700: Hi, [snip] >I do not see ambiguity, however, it is complicated. The proton acceleration >looks straightforward to me proton needs to have 223 eV excess energy, but >not very much more or less. Since they accelerate protons to higher energy >then apparently they have found the balance where the most protons are >decelerated to the correct level.
The last few fm of the approach is where the repulsion force is greatest, and hence a tiny difference in distance makes a large difference in kinetic energy requirement. Furthermore, the tunneling probability is strongly dependent upon distance. Nevertheless it is still a probability, so won't always be the same. The actual energy required to "overcome" the Coulomb barrier is on the order of MeV (see table below), so 223 eV will make little difference to a MeV quantity. All of which makes me wonder what the point is of specifying 223 eV in the first place? Maybe if I took the time to read their theory, it would all make sense? :) Separation distance energy 5 fm 864 keV 3 fm 1.4 MeV 2 fm 2 MeV 1 fm 4 MeV > >That is why I was calling this 223 eV a sweet spot but perhaps I am >missing something since the lack of interest from major players is >alarming. The major problem with the whole thing is that this work goes back >a long way 10 years and yet they have not interested anyone with funds >to invest. Very suspicious. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
