Heidelberg 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 102: Neutrino Physics without Accelerators 7
T 102.6: Vortrag
Donnerstag, 24. März 2022, 17:35–17:50, T-H34
From ECHo-1k to ECHo-100k: Optimisation of the high-resolution metallic magnetic calorimeters with embedded 163Ho for the determination of the electron neutrino mass — •Neven Kovac1, Federica Mantegazzini1, Loredana Gastaldo1, Arnulf Barth1, Markus Griedel1, Andreas Fleischmann1, Matthew Herbst1, Daniel Hengstler1, Andreas Reifenberger1, Christian Enss1, Christoph Düllmann2, Holger Dorrer2, Tom Kieck3, Nina Kneip3, and Klaus Wendt3 — 1Kirchhoff-Institut für Physik, Universität Heidelberg — 2Department of Chemistry - TRIGA Site, Johannes Gutenberg-Universität Mainz — 3Institute of Physics, Johannes Gutenberg-Universität Mainz
Large arrays of metallic magnetic calorimeters have been selected for the ECHo experiment due to the excellent energy resolution, the fast response time and the almost linear detector response which allows for a reliable energy calibration. Based on the performance achieved with the detector array developed for the first phase of the ECHo experiment, ECHo-1k, the design of the ECHo-100k arrays has been conceived. This new design features an optimized single pixel geometry, upgrade of the on-chip thermalisation layout and a high operational flexibility. First wafers with ECHo-100k arrays have been fabricated and several arrays have been fully characterized. We summarise the performance achieved with the ECHo-1k and the newly developed ECHo-100k arrays in comparison with the design performance. We discuss how these results are important for achieving the goals defined for the ECHo-100k experiment.