{"id":11728,"date":"2016-03-15T11:27:45","date_gmt":"2016-03-15T11:27:45","guid":{"rendered":"http:\/\/sitepourvtc.com\/?page_id=11728"},"modified":"2022-10-14T05:47:27","modified_gmt":"2022-10-14T05:47:27","slug":"spectrum-beta-particles","status":"publish","type":"page","link":"https:\/\/sitepourvtc.com\/nuclear-power\/reactor-physics\/atomic-nuclear-physics\/fundamental-particles\/beta-particle\/spectrum-beta-particles\/","title":{"rendered":"Spectrum of Beta Particles"},"content":{"rendered":"
In the process of beta decay, either an electron or a positron is emitted. This emission is accompanied by the emission of antineutrino<\/strong> (\u03b2- decay) or neutrino<\/strong> (\u03b2+ decay), which shares energy and momentum of the decay. The beta emission has a characteristic spectrum. This characteristic spectrum is caused by the fact that either a neutrino or an antineutrino is emitted with the emission of a beta particle. The shape of this energy curve depends on what fraction of the reaction energy (Q value<\/strong>-the amount of energy released by the reaction) is carried by the massive particle. Beta particles can therefore be emitted with any kinetic energy ranging from 0 to Q<\/strong>. By 1934, Enrico Fermi had developed a Fermi theory of beta decay<\/strong>, which predicted the shape of this energy curve.<\/p>\n