Please read these instructions before posting any event on Fermilab Indico

Indico search will be reestablished in the next version upgrade of the software: https://getindico.io/roadmap/


   

This search is only for public events. Restricted events are not available.

June 22, 2020 to July 2, 2020
US/Central timezone

Development and optimisation of metallic magnetic calorimeter arrays towards ECHo-100k

Not scheduled
10m

Speakers

Ms Federica Mantegazzini (Kirchhoff Institute for Physics, Heidelberg University) Mr Wickenhäuser Tom (Kirchhoff Institute for Physics, Heidelberg University)

Description

The Electron Capture in $^{163}$Ho (ECHo) experiment has been designed for the determination of the effective electron neutrino mass exploiting the electron capture spectrum of $^{163}$Ho. The detector technology is based on metallic magnetic calorimeters (MMCs) loaded with $^{163}$Ho and operated at millikelvin temperature. For the coming phase of the experiment, ECHo-100k, the planned activity per pixel is 10 Bq and the required number of pixels simultaneously operated will be 12000. Therefore, a new dedicated chip design has been prepared and microfabricated in order to improve detector performances, $^{163}$Ho implantation efficiency and to allow for parallel and multiplexed read-out. The detector geometry and the $^{163}$Ho host material have been studied in order to optimise the detector response and the energy resolution. In this contribution we present the new ECHo-100k design and the first results obtained with an external $^{55}$Fe source.

Mini-abstract

The new 64-pixel MMC detector arrays meet the requirements for the next phase of the ECHo experiment

Experiment/Collaboration ECHo collaboration

Primary authors

Ms Federica Mantegazzini (Kirchhoff Institute for Physics, Heidelberg University) Mr Wickenhäuser Tom (Kirchhoff Institute for Physics, Heidelberg University)

Presentation Materials