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T: Fachverband Teilchenphysik

T 63: Detector Systems II

T 63.8: Vortrag

Mittwoch, 17. März 2021, 17:45–18:00, Tm

Production of low-background poly(ethylene naphthalate) as a self-vetoing structural material for LEGEND-200 — •Felix Fischer for the PEN collaboration — Max-Planck-Institut für Physik, 80805 Munich, Germany

Poly(ethylene naphthalate), PEN, is a widely used industrial polyester which intrinsically scintillates in the blue wavelength region. Measurements have established a high intrinsic radio purity. This has sparked interest in the material for use in low-background experiments. The entire process from commercially available PEN pellets to an optically active support-structure for the next generation 0νββ-search experiment LEGEND-200 is presented. In addition, new measurements on radiopurity are presented as well as first characterisation studies important for the performance in a low-background experiment.