Göttingen 2025 – scientific programme

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T: Fachverband Teilchenphysik

T 36: Methods in Astroparticle Physics II

T 36.4: Talk

Tuesday, April 1, 2025, 17:00–17:15, VG 3.101

Determination of scintillation properties using alpha spectroscopy for IceCube's optical module — •Ines Bahloul and Alexander Kappes for the IceCube collaboration — Universität Münster, Institut für Kernphysik

The main optical background in IceCube's Digital Optical Modules (DOMs) arises from scintillation caused by trace amounts of radioactive isotopes in the glass of the pressure vessel. The current simulation of this background relies, among other factors, on a gamma spectroscopy measurement of the glass. However, this measurement cannot directly quantify radon and radium content. As part of my master's thesis, I aim to enhance this simulation by measuring these quantities with an alpha spectrometer. In this talk, experimental setup, calibration process, and the current progress of this study will be presented.

Keywords: IceCube; Alpha spectrometer; Digital Optical Modul; alpha decay