Ultracold neutron storage and transport at the PSI UCN sourceG. Bison, M. Daum, K. Kirch, B. Lauss, D. Ries, P. Schmidt-Wellenburg and G. ZsigmondEur. Phys. J. A, 58 6 (2022) 103DOI: https://doi.org/10.1140/epja/s10050-022-00747-1