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- Title
Updates on the Transition-Edge Sensors and Multiplexed Readout for HOLMES.
- Authors
Puiu, A.; Becker, D.; Bennett, D.; Biasotti, M.; Borghesi, M.; Ceriale, V.; De Gerone, M.; Faverzani, M.; Ferri, E.; Fowler, J.; Gallucci, G.; Gard, J.; Hays-Wehle, J.; Hilton, G.; Giachero, A.; Mates, J.; Nucciotti, A.; Orlando, A.; Pessina, G.; Schmidt, D.
- Abstract
Measuring the neutrino mass is one of the most compelling issues in particle physics. HOLMES is an experiment for a direct measurement of the neutrino mass. HOLMES will perform a precise measurement of the end point of the electron capture decay spectrum of 163Ho in order to extract information on the neutrino mass with a sensitivity as low as 1 eV. HOLMES, in its final configuration, will deploy a 1000-pixel array of low-temperature microcalorimeters: each calorimeter is made of an absorber, where the Ho atoms will be implanted, coupled to a transition-edge sensor (TES) thermometer. The detectors will be operated at the working temperature of 100mK provided by a dilution refrigerator. In order to read out the 1000-detector array of HOLMES, a multiplexing system is necessary: the choice is to couple the transition-edge sensors to a multiplexed rf-SQUID. In this contribution we outline the progress made towards the final configuration of HOLMES regarding both the performances of the TES detectors and the characteristics of the multiplexing system.
- Subjects
NEUTRINO mass; PARTICLE physics; ELECTRON capture; RADIOACTIVE decay; THERMOMETERS
- Publication
Journal of Low Temperature Physics, 2018, Vol 193, Issue 5/6, p1167
- ISSN
0022-2291
- Publication type
Article
- DOI
10.1007/s10909-018-1950-z