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  • A device for simultaneous spin analysis of ultracold neutrons
    Afach, S; Ban, G; Bison, G; Bodek, K; Chowdhuri, Z; Daum, M; Fertl, M; Franke, B; Geltenbort, P; Grujić, Z D; Hayen, L; Hélaine, V; Henneck, R; Kasprzak, M; Kermaidic, Y; Kirch, K; Komposch, S; Kozela, A; Krempel, J; Lauss, B; Lefort, T; Lemière, Y; Mtchedlishvili, A; Naviliat-Cuncic, O; Piegsa, F M; Pignol, G; Prashanth, P N; Quéméner, G; Rawlik, M; Ries, D; Rebreyend, D; Roccia, S; Rozpedzik, D; Schmidt-Wellenburg, P; Severijns, N; Weis, A; Wursten, E; Wyszynski, G; Zejma, J; Zsigmond, G

    arXiv (Cornell University), 10/2015
    Paper, Journal Article

    We report on the design and first tests of a device allowing for measurement of ultracold neutrons polarisation by means of the simultaneous analysis of the two spin components. The device was developed in the framework of the neutron electric dipole moment experiment at the Paul Scherrer Institute. Individual parts and the entire newly built system have been characterised with ultracold neutrons. The gain in statistical sensitivity obtained with the simultaneous spin analyser is \((18.2\pm6.1)\%\) relative to the former sequential analyser under nominal running conditions.

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