We present the first performance results obtained with microwave multiplexed Transition Edge Sensors prototypes specifically designed for the HOLMES experiment, a project aimed at directly measuring the electron neutrino mass through the calorimetric measurement of the 163 Ho electron capture spectrum. The detectors required for such an experiment feature a high energy resolution at the Q–value of the transition, around ∼ 2.8 keV, and a fast response time combined with the compatibility to be multiplexed in large arrays in order to collect a large statistics while keeping the pile-up contribution as small as possible. In addition, the design has to be suitable for future ion-implantation of 163 Ho. The results obtained in these tests allowed us to identify the optimal detector design among several prototypes. The chosen detector achieved an energy resolution of (4.5 ± 0.3) eV on the chlorine K α line, at ∼ 2.6 keV, obtained with an exponential rise time of 14 μ s. The achievements described in this paper pose a milestone for the HOLMES detectors, setting a baseline for the subsequent developments, aiming to the actual ion-implantation of the 163 Ho nuclei. In the first section the HOLMES experiment is outlined along with its physics goal, while in the second section the HOLMES detectors are described; the experimental set-up and the calibration source used for the measurements described in this paper are reported in Sects. 3 and 4, respectively; finally, the details of the data analysis and the results obtained are reported in Sect. 6.
Alpert, B., Becker, D., Bennet, D., Biasotti, M., Borghesi, M., Gallucci, G., et al. (2019). High-resolution high-speed microwave-multiplexed low temperature microcalorimeters for the HOLMES experiment. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 79(4) [10.1140/epjc/s10052-019-6814-4].
|Citazione:||Alpert, B., Becker, D., Bennet, D., Biasotti, M., Borghesi, M., Gallucci, G., et al. (2019). High-resolution high-speed microwave-multiplexed low temperature microcalorimeters for the HOLMES experiment. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 79(4) [10.1140/epjc/s10052-019-6814-4].|
|Tipo:||Articolo in rivista - Articolo scientifico|
|Carattere della pubblicazione:||Scientifica|
|Presenza di un coautore afferente ad Istituzioni straniere:||Si|
|Titolo:||High-resolution high-speed microwave-multiplexed low temperature microcalorimeters for the HOLMES experiment|
|Autori:||Alpert, B; Becker, D; Bennet, D; Biasotti, M; Borghesi, M; Gallucci, G; De Gerone, M; Faverzani, M; Ferri, E; Fowler, J; Gard, J; Giachero, A; Hays–Wehle, J; Hilton, G; Mates, J; Nucciotti, A; Orlando, A; Pessina, G; Puiu, A; Reintsema, C; Schmidt, D; Swetz, D; Ullom, J; Vale, L|
FAVERZANI, MARCO (Corresponding)
|Data di pubblicazione:||2019|
|Rivista:||THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1140/epjc/s10052-019-6814-4|
|Appare nelle tipologie:||01 - Articolo su rivista|