In reply to Eric Walker's message of Sun, 29 Nov 2015 21:34:17 -0600: Hi, [snip] >On Sun, Nov 29, 2015 at 7:09 PM, <mix...@bigpond.com> wrote: > > >> As the particle gets >> closer to the target, the screening electrons get fewer, and the effect >> eventually reverses, with there being more behind the particle than in >> front of >> it. >> > >Just so I am clear on what you're arguing -- you're arguing that additional >electron charge permeating the Coulomb barrier surrounding the nucleus >would not increase the alpha-capture cross section; if anything it would >decrease it. If I have understood your position, it seems counterintuitive >to me. > >Eric
No, I'm saying it does both. When the alpha particle is far away it enhances it, but when it get close to a target nucleus it works against it. I'm not sure what the net result would be. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
