In reply to Eric Walker's message of Tue, 29 Mar 2016 22:18:31 -0500: Hi, [snip] >It is possible that a suitable environment could stimulate electron capture >without leading to competing positron emission, e.g., through a surplus of >electrons passing through the nucleus. [snip] I don't think double positron emission is possible in this case. The total energy available is only about 1.09 MeV, and double positron emission implies 4 x 511 keV gammas when the positrons annihilate. That's about 2 MeV, which isn't available. Single positron emission combined with 1 EC may be possible. Regards,
Robin van Spaandonk http://rvanspaa.freehostia.com/project.html

