Ultracold neutron storage in a bottle coated with the fluoropolymer CYTOPThomas Neulinger, Douglas Beck, Euan Connolly, Skyler Degenkolb, Peter Fierlinger, Hanno Filter, Jürgen Hingerl, Pontus Nordin, Thomas Saerbeck and Oliver ZimmerEur. Phys. J. A, 58 7 (2022) 141DOI: https://doi.org/10.1140/epja/s10050-022-00791-x