Investigation of a Possibility of Chromium-51 Accumulation in the SM-3 Reactor to Fabricate a Neutrino Source

[摘要] Compact high intensity neutrino sources based on51Cr isotope are demanded for very short baseline neutrino experiments. In particular, a 3 MCi51Cr neutrino source is needed for the experiment BEST on search for transitions of electron neutrinos to sterile states. The paper presents the results of the analysis of options of the irradiation of highly enriched50Cr in the existing trap of thermal neutrons of high-flux reactor SM-3, as well as using the most promising variants of the trap after upcoming reconstruction of the reactor. It is shown that it is possible to to obtain the intensity of51Cr up to 3.85 MCi at the end of irradiation of50Cr enriched to 97% in the high-flux reactor SM-3 of the JSC "SSC NIIAR".

[发布机构] JSC SSC RIAR, JSC Science and Innovation, State Atomic Energy Corporation ROSATOM, Russia^1;INR RAS, Federal Agency for Scientific Organizations, Russia^2

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Electron neutrino;End of irradiations;High flux reactors;High intensity;Neutrino experiments;Neutrino sources;Short base lines;Thermal neutrons