00000cmm a22000004a 4500 UP-99796217611235919 Buklod 20241028111752.0 m go j cr |n |||auu|a 241028s2011 ne o j | eng d 9789400712324 (eBook) (iLib)UPD-00215705094 DMLR rda eng DMLUC QC 338 V54 2011eb Vignati, Marco author. Model of the response function of CUORE bolometers [electronic resource] Marco Vignati. Dordrecht, Netherlands Springer Dordrecht 2011. 1 online resource (xii, 107 pages) text rdacontent computer rdamedia online resource rdacarrier Springer theses 38 Foreword by Fernando Ferroni 1 Neutrino masses and double beta decay -- 2 TeO2 bolometric detectors for 0_DBD search -- 3 Model of the response function of CUORE bolometers -- 4 Thermal response analysis -- 5 Thermal response analysis on the Three Towers detector -- 6. Conclusions. Appendix A: Thermal response analysis on the CCVR detector Appendix B: Precision measurements on the Three Towers detector. IP-based subscription, access limited to within on-campus computer network. Access via Electronic Resources of the UPD University Library Website. The neutrino is probably the most elusive elementary particle discovered so far. Its mass is very small and still unknown, and it is considered a key quantity in many theories beyond the Standard Model of particle physics. The smallness of the mass could be explained if neutrinos are, unlike all other particles, equal to their own antiparticles, thus following the conjecture of E. Majorana. The double beta decay without emission of neutrinos is a nuclear process that can happen only if the neutrino is a Majorana particle. Observation of this decay would therefore necessarily imply that neutrinos are Majorana particles and would set the mass scale, a breakthrough in our understanding of nature. The CUORE experiment will search for the neutrinoless double beta decay in 130Te, using 1 ton of TeO2 bolometric detectors. Bolometers are calorimeters that operate at cryogenic temperatures, able to measure the temperature rise produced by the energy release of an impinging particle. They feature good resolution and low background, making them excellent detectors to search for rare decays. The performances of the experiment are currently limited by temperature instabilities of the bolometers and by a poor understanding of their data. Mea­suring the energy deposited by a particle, in fact, is complicated and the shape of the signal depends on the energy. In this thesis a model of the signal of TeO2 bolometers is developed. It is able to explain the origin of the unwanted features that would limit the performances of CUORE. The application of the model to data from test bolometers led to great improvements of the results in terms of energy resolution, energy calibration, and signal shape discrimination. This thesis has been awarded at the Department of Physics, Universita di Roma - La Sapienza, Italy. With a Foreword by Professor Fernando Ferroni Electronic reproduction. New York SpringerLink 2011. Available via World Wide Web through SpringerLink Bolometer. Neutrinos. Available for UP System via Springer Link. https://doi.org/10.1007/978-94-007-1232-4 FO UPD DMLR QC 338 V54 2011eb Electronic Resource