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Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 32: Methods in astroparticle physics 2

T 32.1: Vortrag

Dienstag, 5. März 2024, 16:00–16:15, Geb. 20.30: 2.067

Preparation for the determination of the absolute X-ray detection efficiency of the TAXO SDD for IAXOJoanna Bilicki, •Patrick Bongratz, Frank Edzards, Susanne Mertens, Lucinda Schönfeld, Juan Pablo Ulloa Beteta, Christoph Wiesinger, and Michael Willers — Physik-Department, Technische Universität München, Garching, DE

The International Axion Observatory (IAXO) aims to improve the search for solar axions by at least one order of magnitude with respect to previous helioscope experiments. In a helioscope experiment solar axions are back-converted to X-rays in a strong magnet pointed at the sun. Silicon drift detectors (SDDs) are particularly suited to detect this signal. Good noise performance enables sub-keV thresholds while maintaining high detection efficiency. In this talk, I will report on the TAXO SDD project and the preparations for a measurement of the absolute X-ray detection efficiency at the SOLEIL synchrotron facility. 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).

Keywords: Axion; X-ray detection; Silicon Drift Detector; Rare Event Search; Efficiency Measurement

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