On Fri, Nov 27, 2015 at 7:29 PM, <mix...@bigpond.com> wrote: Note that the Coulomb barrier width is a function of the particle's energy.
Not only do we have a simple theoretical argument that the Coulomb barrier width can be lessened by electron screening, precisely as one might imagine it could, somewhat independent of the departing alpha-particle's energy, there is also evidence that this has been accomplished in practice. Following is one example: http://www.google.com/patents/US5076971 Eric
