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Development and characterisation of high-resolution microcalorimeter detectors for the ECHo-100k experiment

The goal of the ECHo experiment is a direct determination of the absolute scale of the neutrino mass by the analysis of the end-point region of the 163Ho electron capture (EC) spectrum. The results of the first phase of the experiment, ECHo-1k, have paved the way for the current phase, ECHo-100k, wh...

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Hauptverfasser: Mantegazzini, Federica (VerfasserIn) , Kovac, Neven (VerfasserIn) , Enss, Christian (VerfasserIn) , Fleischmann, Andreas (VerfasserIn) , Griedel, Markus (VerfasserIn) , Gastaldo, Loredana (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: October 2023
In: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2023, Jahrgang: 1055, Pages: 1-13
ISSN:1872-9576
DOI:10.1016/j.nima.2023.168564
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nima.2023.168564
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0168900223005545
Volltext
Verfasserangaben:F. Mantegazzini, N. Kovac, C. Enss, A. Fleischmann, M. Griedel, L. Gastaldo
Beschreibung
Zusammenfassung:The goal of the ECHo experiment is a direct determination of the absolute scale of the neutrino mass by the analysis of the end-point region of the 163Ho electron capture (EC) spectrum. The results of the first phase of the experiment, ECHo-1k, have paved the way for the current phase, ECHo-100k, which aims at a sensitivity below 2eV on the effective electron neutrino mass. In order to reach this goal, a new generation of high-resolution magnetic microcalorimeters with embedded 163Ho have been developed and characterised. The design has been optimised to meet all the challenging requirements of the ECHo-100k experimental phase, such as excellent energy resolution, wafer scale implantation and multi-chip operation with multiplexing read-out. We present the optimisation studies, the final design of the detector array and the first characterisation studies. The obtained results demonstrate that the detectors fully match and even surpass the requirements for the current experimental phase, ECHo-100k.
Beschreibung:Online veröffentlicht: 31. Juli 2023
Gesehen am 14.05.2024
Beschreibung:Online Resource
ISSN:1872-9576
DOI:10.1016/j.nima.2023.168564

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