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T: Fachverband Teilchenphysik
T 26: Axions/ALPs I
T 26.1: Vortrag
Dienstag, 1. April 2025, 16:15–16:30, VG 0.110
Towards a low background SDD for IAXO — Joanna Bilicki1, Patrick Bongratz1,2, Frank Edzards1, Susanne Mertens1,2, •Lucinda Schönfeld1,2, Juan Pablo Ulloa Beteta1, Christoph Wiesinger1,2, and Michael Willers1,2 for the IAXO collaboration — 1Technische Universität München, Garching, DE — 2Max Planck Institut für Kernphysik, Heidelberg, DE
Axions are hypothetical particles that solve the strong CP problem and are candidates for dark matter. The International Axion Observatory (IAXO) is aiming to find these elusive particles by converting solar axions to X-rays. Detecting this rare signal requires highly efficient ultra-low background X-ray detectors, for which Silicon Drift Detectors (SDDs) are well suited. I will present the current status of the TRISTAN SDD for IAXO (TAXO) project, which is developing such an SDD. A particular focus will be the latest results of background measurements above ground at TUM and deep underground at the Canfranc underground laboratory.
This project has received funding from the European Research Council (ERC) under the European Union Horizon 2020 research and innovation programme (grant agreement No. 852845). It has also been supported by the DFG through the Excellence Cluster ORIGINS.
Keywords: axion; rare-event search; SDD; X-ray detector; low background