Measuring the neutrino mass is one of the most compelling issues in particle physics. The European Research Council has funded HOLMES, a new experiment for a direct measurement of neutrino mass that started in 2014. HOLMES will perform a precise measurement of the end point of the Electron Capture decay spectrum of (Formula presented.)Ho in order to extract information on neutrino mass with a sensitivity as low as 0.4 eV. HOLMES, in its final configuration, will deploy a 1000 pixel array of low-temperature microcalorimeters: each calorimeter consists of an absorber, where the Ho atoms will be implanted, coupled to a transition edge sensor thermometer. The read out for an array of 1000 cryogenic detectors is a crucial matter: for HOLMES, a special radio-frequency-based multiplexing system is being developed. In this contribution, we outline the performance and special features of the multiplexing system and readout methods chosen for HOLMES
Puiu, P., Becker, D., Bennett, D., Faverzani, M., Ferri, E., Fowler, J., et al. (2016). Development of the rf-SQUID Based Multiplexing System for the HOLMES Experiment. JOURNAL OF LOW TEMPERATURE PHYSICS, 184(1-2), 45-51 [10.1007/s10909-015-1432-5].
Development of the rf-SQUID Based Multiplexing System for the HOLMES Experiment
PUIU, PAUL ANDREI
;FAVERZANI, MARCO;FERRI, ELENA;GIACHERO, ANDREA;MAINO, MATTEO;NUCCIOTTI, ANGELO ENRICO LODOVICO;
2016
Abstract
Measuring the neutrino mass is one of the most compelling issues in particle physics. The European Research Council has funded HOLMES, a new experiment for a direct measurement of neutrino mass that started in 2014. HOLMES will perform a precise measurement of the end point of the Electron Capture decay spectrum of (Formula presented.)Ho in order to extract information on neutrino mass with a sensitivity as low as 0.4 eV. HOLMES, in its final configuration, will deploy a 1000 pixel array of low-temperature microcalorimeters: each calorimeter consists of an absorber, where the Ho atoms will be implanted, coupled to a transition edge sensor thermometer. The read out for an array of 1000 cryogenic detectors is a crucial matter: for HOLMES, a special radio-frequency-based multiplexing system is being developed. In this contribution, we outline the performance and special features of the multiplexing system and readout methods chosen for HOLMES
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