The KATRIN (Karlsruhe Tritium Neutrino) experiment investigates the energetic endpoint of the tritium beta-decay spectrum to determine the effective mass of the electron anti-neutrino. The collaboration has reported a first mass measurement result at this TAUP-2019 conference. The TRISTAN project aims at detecting a keV-sterile neutrino signature by measuring the entire tritium beta-decay spectrum with an upgraded KATRIN system. One of the greatest challenges is to handle the high signal rates generated by the strong activity of the KATRIN tritium source while maintaining a good energy resolution. Therefore, a novel multi-pixel silicon drift detector and read-out system are being designed to handle rates of about 100 Mcps with an energy resolution better than 300 eV (FWHM). This report presents succinctly the KATRIN experiment, the TRISTAN project, then the results of the first 7-pixels prototype measurement campaign and finally describes the construction of the first TRISTAN module composed of 166 SDD-pixels as well as its implementation in KATRIN experiment.

Houdy, T., Alborini, A., Altenmuller, K., Biassoni, M., Bombelli, L., Brunst, T., et al. (2020). Hunting keV sterile neutrinos with KATRIN: Building the first TRISTAN module. In 16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019. Institute of Physics Publishing [10.1088/1742-6596/1468/1/012177].

Hunting keV sterile neutrinos with KATRIN: Building the first TRISTAN module

Biassoni M.;Pavan M.;Pozzi S.;
2020

Abstract

The KATRIN (Karlsruhe Tritium Neutrino) experiment investigates the energetic endpoint of the tritium beta-decay spectrum to determine the effective mass of the electron anti-neutrino. The collaboration has reported a first mass measurement result at this TAUP-2019 conference. The TRISTAN project aims at detecting a keV-sterile neutrino signature by measuring the entire tritium beta-decay spectrum with an upgraded KATRIN system. One of the greatest challenges is to handle the high signal rates generated by the strong activity of the KATRIN tritium source while maintaining a good energy resolution. Therefore, a novel multi-pixel silicon drift detector and read-out system are being designed to handle rates of about 100 Mcps with an energy resolution better than 300 eV (FWHM). This report presents succinctly the KATRIN experiment, the TRISTAN project, then the results of the first 7-pixels prototype measurement campaign and finally describes the construction of the first TRISTAN module composed of 166 SDD-pixels as well as its implementation in KATRIN experiment.
paper
beta decay, Katrin, Tristan, neutrino mass
English
16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019 - 9 September 2019 through 13 September 2019
2019
16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019
2020
1468
1
012177
open
Houdy, T., Alborini, A., Altenmuller, K., Biassoni, M., Bombelli, L., Brunst, T., et al. (2020). Hunting keV sterile neutrinos with KATRIN: Building the first TRISTAN module. In 16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019. Institute of Physics Publishing [10.1088/1742-6596/1468/1/012177].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/436038
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