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A device for simultaneous spin analysis of ultracold neutrons

Abstract : 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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Submitted on : Tuesday, January 14, 2020 - 9:04:11 AM
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S. Afach, G. Ban, G. Bison, K. Bodek, Z. Chowdhuri, et al.. A device for simultaneous spin analysis of ultracold neutrons. European Physical Journal A, EDP Sciences, 2015, 51, pp.143. ⟨10.1140/epja/i2015-15143-7⟩. ⟨in2p3-01120938⟩

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