15th International Conference on Topics in Astroparticle and Underground Physics, TAUP2017

Thermal management and modeling for precision measurements in Borexino's SOX and solar neutrino spectroscopy programs

Not scheduled

5m

Alumni Hall

Poster Neutrinos Poster Session

Speaker

Dr David Bravo Berguño (INFN Milano)

Description

The Borexino liquid scintillator neutrino observatory is set to perform the first direct, high-precision, wideband solar neutrino spectroscopy of the solar neutrino spectrum’s main components, including improving the knowledge of the CNO $\nu$ flux. Additionally, its next-generation short-baseline ${}^{144}$Ce-${}^{144}$Pr ${\bar{\nu }}_e$ source program (CeSOX) intends to unambiguously measure or disprove signs of anomalous oscillatory behavior in the low L/E regime, also exploring the anomaly-favored $si{n}^2({\theta }_{14})/\mathrm{\Delta }{m}_{14}^2$ sterile neutrino phase space. Both programs rely on the detector’s unprecedented and record-setting background levels, which are tightening its requirement for background stability. Aiming to minimize background fluctuations (particularly in ${}^{210}$Po), a new Temperature Monitoring and Management System was deployed. Computational Fluid Dynamics (CFD) simulations are also being actively developed in order to model, characterize and ultimately predict the subtle fluid currents (∼10${}^{-7}$ m/s) that might prove to be a hindrance for the required background stability.

Presentation materials

2017_TAUP2017-David.BravoBerguno-poster.pdf