Segmented beryllium target for a 2 MW super beam facility SEGMENTED BERYLLIUM TARGET for A 2 MW SUPER ... T. DAVENNE et al.

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Abstract

The Long Baseline Neutrino Facility (LBNF, formerly the Long Baseline Neutrino Experiment) is under design as a next generation neutrino oscillation experiment, with primary objectives to search for CP violation in the leptonic sector, to determine the neutrino mass hierarchy and to provide a precise measurement of θ23. The facility will generate a neutrino beam at Fermilab by the interaction of a proton beam with a target material. At the ultimate anticipated proton beam power of 2.3 MW the target material must dissipate a heat load of between 10 and 25 kW depending on the target size. This paper presents a target concept based on an array of spheres and compares it to a cylindrical monolithic target such as that which currently operates at the T2K facility. Simulation results show that the proposed technology offers efficient cooling and lower stresses whilst delivering a neutrino production comparable with that of a conventional solid cylindrical target.

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Davenne, T., Caretta, O., Densham, C., Fitton, M., Loveridge, P., Hurh, P., … Papadimitriou, V. (2015). Segmented beryllium target for a 2 MW super beam facility SEGMENTED BERYLLIUM TARGET for A 2 MW SUPER ... T. DAVENNE et al. Physical Review Special Topics - Accelerators and Beams, 18(9). https://doi.org/10.1103/PhysRevSTAB.18.091003

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