In reply to Bob Higgins's message of Fri, 1 Dec 2017 16:48:01 -0700: Hi, [snip] >I cannot comprehend a magnetic field configuration that would unidirectionally >focus an omnidirectional emission of alpha particles. If you had such a thing >it would be useful for making radioisotope alpha emitter batteries.
It's a funnel shaped magnetic field. Look up the latest advances in ion propulsion. Regards, Robin van Spaandonk local asymmetry = temporary success
