The microcalorimeter array for a rhenium experiment (MARE) project aims at the direct and calorimetric measurement of the electron neutrino mass with sub-eV sensitivity. The design is based on large arrays of thermal detectors to study the beta decay of 187 Re and the electron capture of 163 Ho. One of the activities of the project, MARE 1 in Milan, has started in Milan using one array of 6 × 6 silicon implanted thermistors equipped with AgReO 4 absorbers. The purposes of MARE 1 in Milan are to achieve a sensitivity on the neutrino mass of a few eV and to investigate the systematics of 187 Re neutrino mass measurements, focusing on those caused by the beta environmental fine structure and the beta spectrum theoretical shape. In parallel, the MARE collaboration is performing an R&D work for producing absorbers embedded with radioactive metal 163 Ho. We report here the status of MARE using Re as beta source and the preliminary results obtained with 163 Ho.
Ferri, E., Bagliani, D., Biassotti, M., Ceruti, G., Corsini, D., Faverzani, M., et al. (2014). Preliminary Results of the MARE Experiment. JOURNAL OF LOW TEMPERATURE PHYSICS, 176(5-6), 885-890 [10.1007/s10909-013-1026-z].
Preliminary Results of the MARE Experiment
FERRI, ELENA
;FAVERZANI, MARCO;GIACHERO, ANDREA;GOTTI, CLAUDIO;MAINO, MATTEO;NUCCIOTTI, ANGELO ENRICO LODOVICO;Pessina, G;SISTI, MONICA
2014
Abstract
The microcalorimeter array for a rhenium experiment (MARE) project aims at the direct and calorimetric measurement of the electron neutrino mass with sub-eV sensitivity. The design is based on large arrays of thermal detectors to study the beta decay of 187 Re and the electron capture of 163 Ho. One of the activities of the project, MARE 1 in Milan, has started in Milan using one array of 6 × 6 silicon implanted thermistors equipped with AgReO 4 absorbers. The purposes of MARE 1 in Milan are to achieve a sensitivity on the neutrino mass of a few eV and to investigate the systematics of 187 Re neutrino mass measurements, focusing on those caused by the beta environmental fine structure and the beta spectrum theoretical shape. In parallel, the MARE collaboration is performing an R&D work for producing absorbers embedded with radioactive metal 163 Ho. We report here the status of MARE using Re as beta source and the preliminary results obtained with 163 Ho.
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