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T: Fachverband Teilchenphysik
T 60: Methods in Astroparticle Physics III
T 60.7: Vortrag
Mittwoch, 18. März 2026, 17:45–18:00, KS 00.004
Development of an Experimental Platform for MMC Operation in the Next-Generation Neutrino Mass Experiment KATRIN++ — •Abdullah Özkara1, Sebastian Kempf2,3, and Michael Müller2 for the KATRIN collaboration — 1Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT) — 2Institute of Micro- and Nanoelectronic Systems (IMS), Karlsruhe Institute of Technology (KIT) — 3Institute for Data Processing and Electronics (IPE), Karlsruhe Institute of Technology (KIT)
The Karlsruhe Tritium Neutrino (KATRIN) experiment measures the electron antineutrino mass via high-precision electron spectroscopy of tritium β-decay. Currently, KATRIN has established an upper limit of 0.45 eV for the absolute neutrino mass and aims to reach a final sensitivity of 0.3 eV (90% C.L.). With the future upgrade to KATRIN++, the goal is to push the sensitivity down to 0.05 eV to probe the inverted mass ordering. To achieve this, a new experimental platform will be implemented, incorporating metallic magnetic calorimeters (MMCs). MMCs are low-temperature single-particle detectors based on quantum technology, offering excellent energy resolution.
We present the scheme of a novel platform featuring a magnetic cold chicane, enabling a barrierless transition from the room-temperature vacuum of the KATRIN main spectrometer to the cryogenic environment of the MMC detector.
This work is supported by the Helmholtz Association and by the Ministry for Education and Research BMFTR (grant numbers 05A23PMA, 05A23PX2, 05A23VK2 and 05A23WO6).
Keywords: MMCs; Neutrino mass; Quantum sensors