Towards the Direct Observation of Xenon-135 Poisoning in a Zero-Power Reactor via Gamma SpectroscopyOskari Pakari, Andrew Lucas, Flynn Darby, Michel Saliba, Vincent Lamirand, Andreas Pautz and Sara PozziEPJ Web Conf., 338 (2025) 04010DOI: https://doi.org/10.1051/epjconf/202533804010