A slow neutron polarimeter for the measurement of parity-odd neutron rotary power

We present the design, description, calibration procedure, and an analysis of systematic effects for an apparatus designed to measure the rotation of the plane of polarization of a transversely polarized slow neutron beam as it passes through unpolarized matter. This device is the neutron optical eq...

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Bibliographic Details
Published in:Review of scientific instruments 2015-05, Vol.86 (5), p.055101-055101
Main Authors: Snow, W M, Anderson, E, Barrón-Palos, L, Bass, C D, Bass, T D, Crawford, B E, Crawford, C, Dawkins, J M, Esposito, D, Fry, J, Gardiner, H, Gan, K, Haddock, C, Heckel, B R, Holley, A T, Horton, J C, Huffer, C, Lieffers, J, Luo, D, Maldonado-Velázquez, M, Markoff, D M, Micherdzinska, A M, Mumm, H P, Nico, J S, Sarsour, M, Santra, S, Sharapov, E I, Swanson, H E, Walbridge, S B, Zhumabekova, V
Format: Article
Language:English
Subjects:
Measuring instruments
Neutron beams
Neutron sources
Neutrons
Parity
Polarimeters
Polarizers
Scientific apparatus & instruments
Thermal neutrons
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Description
Summary:We present the design, description, calibration procedure, and an analysis of systematic effects for an apparatus designed to measure the rotation of the plane of polarization of a transversely polarized slow neutron beam as it passes through unpolarized matter. This device is the neutron optical equivalent of a crossed polarizer/analyzer pair familiar from light optics. This apparatus has been used to search for parity violation in the interaction of polarized slow neutrons in matter. Given the brightness of existing slow neutron sources, this apparatus is capable of measuring a neutron rotary power of dϕ/dz = 1 × 10(-7) rad/m.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4919412