sorry try this link: http://physics.aps.org/articles/v6/59
On Sat, May 25, 2013 at 3:08 AM, Axil Axil <[email protected]> wrote: > three body forces are important. The shell model and magic numbers fall > out of tensor and three-nucleon forces > theory<http://www.energyfromthorium.com/forum/viewtopic.php?f=2&t=4057> > > http://physics.aps.org/articles/v6/59]Viewpoint > > Pushing Back the Frontier of Stability > > > > On Sat, May 25, 2013 at 2:50 AM, <[email protected]> wrote: > >> In reply to David Roberson's message of Fri, 24 May 2013 23:42:18 -0400 >> (EDT): >> Hi, >> [snip] >> >So, my ultimate desire is to understand exactly how excess energy is >> stored within a nucleus. A single proton does not have the ability to >> perform that function under normal conditions. When fusion occurs, gammas >> are emitted by some mechanism from the nuclear energy storage process. >> Classical ideas would suggest that the energy might be stored in a process >> somewhat like that of a pair of balls connected by a spring which in this >> case would simulate the strong force. >> >> The fact that nuclei often have neutron cross sections with sharp peaks >> in the >> energy of the neutron, hints IMO that nuclei have rigid structures. >> However much >> like a box of apples, different arrangements are possible. Each different >> arrangement has its own energy level, but there is a (slight) barrier to >> overcome in changing between arrangements, e.g. an apple, once having >> settled >> into the dip between other apples needs a slight nudge to get it over it's >> nearest neighbor into the next dip. The ZPE can however provide the energy >> required to push a nucleon into the next "dip", provided that in so doing >> the >> nucleus reaches a lower energy level such that the loan from the Bank of >> Heisenberg is rapidly repaid. Perhaps more accurately, if there is no >> lower >> position, then the "apple" simply roles back to it's original spot, >> returning >> the borrowed energy during the process. >> >> When a neutron from outside enters the nucleus, many other "apples" get >> shifted >> around, and it takes a while for them all to settle down again, each shift >> releasing a gamma photon. >> [snip] >> >I ask these somewhat silly sounding questions because it frequently >> occurs that a proposed reaction is questioned because of a concern for the >> conservation of energy and momentum during the fusion process. I seek a >> way to buy time during the event which might be used to slowly absorb the >> high level of energy that is ultimately released by fusion. >> >> You won't be buying much time. Particle emission usually happens in about >> 1E-23 >> seconds, and gamma emission on the order of about 1E-17 seconds, except >> when a >> so called "meta-stable" state is achieved. >> >> > >> >For instance, a two body collision can always be shown to conserve >> momentum and energy as long as no energy is released during the collision >> and they remain attached. Then, the trick is to figure out how to extract >> that excess energy without significantly upsetting the center of mass of >> the initial pair. If the energy can be taken over a long enough period of >> time, then interesting things happen. >> >> Indeed "if". >> >> > >> >Another question is why can't a proton have additional mass that exists >> in the form of kinetic energy of its constituent quarks? I guess this is >> equivalent of asking whether or not a proton can have a temperature. :-) >> >> Only when it has a fever. ;) >> >> Regards, >> >> Robin van Spaandonk >> >> http://rvanspaa.freehostia.com/project.html >> >> >
