Journal article

Photomultiplier characterisation and its impact on background for SABRE South

William JD Melbourne, Owen Stanley, Phillip Urquijo, Madeleine J Zurowski

SciPost Physics Proceedings | Stichting SciPost | Published : 2023

DOI: 10.21468/scipostphysproc.12.061

Abstract

SABRE (Sodium iodide with Active Background REjection) South is a NaI(Tl) based dark matter direct detection experiment located at the Stawell Underground Physics Laboratory (SUPL) [J. Phys. Conf. Ser. 2156, 012064 (2021), arXiv:2205.13849]. It is designed to detect an annual modulation of WIMP recoils as an independent replication of the long-standing DAMA/LIBRA modulation signal. SABRE South will have a low energy threshold of 1 keV in the NaI(Tl) crystal detector and a low experimental background. This requires precise characterisation of the photomultipliers used to understand both their sensitivity at low thresholds and their contribution to the background. We report on the photomultipl..

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46 Information and Computing Sciences
4610 Library and Information Studies
51 Physical Sciences