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Losses and depolarization of ultracold neutrons on neutron guide and storage materials

Bondar, V. ; Chesnevskaya, S. ; Daum, M. ; Franke, B. ; Geltenbort, P. ; Göltl, L. ; Gutsmiedl, E. ; Karch, J. ; Kasprzak, Malgorzata ; Kessler, G. ; Kirch, K. ; Koch, Hans-Christian ; Kraft, Andreas ; Lauer, Thorsten ; Lauss, B. ; Pierre, E. ; Pignol, G. ; Reggiani, D. ; Schmidt-Wellenburg, P. ; Sobolev, Yuri ; Zechlau, T. ; Zsigmond, G.

In: Physical Review C, 2017, vol. 96, no. 3, p. 035205

At Institut Laue-Langevin (ILL) and Paul Scherrer Institute (PSI), we have measured the losses and depolarization probabilities of ultracold neutrons on various materials: (i) nickel-molybdenum alloys with weight percentages of 82/18, 85/15, 88/12, 91/9, and 94/6 and natural nickel Ni100, (ii) nickel-vanadium NiV93/7, (iii) copper, and (iv) deuterated polystyrene (dPS). For the different...