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Proceedings Paper

8 AgReO4 microcalorimeter array for the direct detection of the neutrino mass
Author(s): Angelo Alessandrello; Chiara Brofferio; Oliviero Cremonesi; Ettore Fiorini; Andrea Giuliani; Angelo Nucciotti; Maura Pavan; Gianluigi Pessina; Ezio Previtali; Monica Sisti; Luigi Zanotti; Benno Margesin; Giorgio Pigmatel; Mario Zen; Jeffrey W. Beeman; Eugene E. Haller
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Paper Abstract

We are presenting our recent developments to measure the electron antineutrino mass by studying the 187Re (beta) - spectrum end-point with high resolution thermal detectors. We will discuss the preliminary results of an array of 8 bolometers made up of AgReO4 absorbers (2.309 mg of total mass corresponding to a total 187Re active mass of about 0.905 mg of with an expected (beta) total rate of about 1.3 Hz). Their risetime of 0.7 - 1.2 ms together with their energy resolution, ranging between 21 eV and 26 eV at 1.5 KeV, should allow to set a limit of about 10 - 12 eV after one year of real time measurements.

Paper Details

Date Published: 13 December 2000
PDF: 5 pages
Proc. SPIE 4140, X-Ray and Gamma-Ray Instrumentation for Astronomy XI, (13 December 2000); doi: 10.1117/12.409136
Show Author Affiliations
Angelo Alessandrello, Univ. degli Studi di Milano and INFN (Italy)
Chiara Brofferio, Univ. degli Studi di Milano and INFN (Italy)
Oliviero Cremonesi, Univ. degli Studi di Milano and INFN (Italy)
Ettore Fiorini, Univ. degli Studi di Milano and INFN (Italy)
Andrea Giuliani, Univ. degli Studi di Milano and INFN (Italy)
Angelo Nucciotti, Univ. degli Studi di Milano and INFN (Italy)
Maura Pavan, Univ. degli Studi di Milano and INFN (Italy)
Gianluigi Pessina, Univ. degli Studi di Milano and INFN (Italy)
Ezio Previtali, Univ. degli Studi di Milano and INFN (Italy)
Monica Sisti, Univ. degli Studi di Milano and INFN (Italy)
Luigi Zanotti, Univ. degli Studi di Milano and INFN (Italy)
Benno Margesin, Univ. degli Studi di Trento (Italy)
Giorgio Pigmatel, Univ. degli Studi di Trento (Italy)
Mario Zen, Univ. degli Studi di Trento (Italy)
Jeffrey W. Beeman, Lawrence Berkeley National Lab. and Univ. of California/Berkeley (United States)
Eugene E. Haller, Lawrence Berkeley National Lab. and Univ. of California/Berkeley (United States)


Published in SPIE Proceedings Vol. 4140:
X-Ray and Gamma-Ray Instrumentation for Astronomy XI
Kathryn A. Flanagan; Oswald H. W. Siegmund, Editor(s)

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