From ECHo-1k to ECHo-100k:Optimization of High-Resolution Metallic Magnetic Calorimeters with Embedded 163Ho for Neutrino Mass Determination
نویسندگان
چکیده
Abstract The ECHo experiment aims at determining the effective electron neutrino mass by analyzing endpoint of 163 Ho capture spectrum. High energy resolution detectors with a well-tailored detector response are essential ingredient for success experiment. Metallic magnetic calorimeter arrays enclosing have been chosen first MMC array, ECHo-1k, showed excellent performances an average 5.5 eV FWHM @ 5.9 keV. Based on results obtained ECHo-1k optimization studies paved way towards new design next experimental phase, ECHo-100k. ECHo-100k chip features optimized single pixel to improve performance as well upgraded on-chip thermalization layout. newly fabricated fully characterized room temperature, 4 K and millikelvin temperature. show that array achieved expected 3.5 keV, fulfilling requirements phase.
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ژورنال
عنوان ژورنال: Journal of Low Temperature Physics
سال: 2022
ISSN: ['0022-2291', '1573-7357']
DOI: https://doi.org/10.1007/s10909-022-02732-w