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T: Fachverband Teilchenphysik

T 81: Eingeladene Vorträge 3

T 81.4: Eingeladener Vortrag

Donnerstag, 12. März 2015, 15:15–15:45, M.10.12 (HS 14)

Magnetic micro-calorimeters for neutrino physics — •Loredana Gastaldo — Kirchhoff Institute for Physics, Heidelberg University

Metallic magnetic micro-calorimeters are energy dispersive detectors operated at temperatures below 0.1 Kelvin. Their resolving power E/ Δ E approaching 5000, the intrinsic response time well below 1 µs and the excellent linearity make magnetic micro-calorimeters very attractive for numerous experiments.

With such detectors we have performed the first high resolution calorimetric measurements of the ¹⁶³Ho electron capture spectrum. The achieved performance motivated the formation of the international collaboration ECHo (Electron Capture in ¹⁶³Ho) to investigate the electron neutrino mass in the sub-eV range using the ¹⁶³Ho.

For the search of neutrinoless double beta decay in ¹⁰⁰Mo with scintillating crystals, we have developed photon and phonon detectors based on metallic magnetic calorimeters to be used in the experiments AMoRE and LUMINEU.

In this talk, the ECHo experiment as well as the other applications of metallic magnetic calorimeters for neutrino physics will be discussed.