New neutron magnetic low index leaky waveguide coupler

Journal Article · Tue Apr 01 04:00:00 EST 1997 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.365552· OSTI ID:496467

Pogossian, S P; Ben-Youssef, J; Le Gall, H; Desvignes, J M ^[1]; Menelle, A ^[2]

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1. CNRS, Laboratoire de Materiaux Isolants, Magnetiques et Semiconducteurs, 1 Place Aristide Briand, 92195 Meudon (France)
2. CEA-CNRS, Laboratoire Leon Brillouin, CE-Saclay, 91191 Gif sur Yvette (France)

In the present paper a new kind of neutron De Broglie wave leaky coupler-guide structure is proposed. This new magnetic coupler allows only one neutron polarization to be coupled into a magnetic neutron thin film waveguide. It is shown theoretically that this new thin film coupler decrease considerably the losses due to the roughness of the interfaces of the multilayer structure. Moreover a transmitted resonance peak is observed in a wavelength region accessible only for guided neutron waves. Thus a magnetic neutron coupler is proposed and a transmitted polarized neutron guided wave is observed experimentally. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 496467
• Report Number(s): CONF-961141--
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 81; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
COBALT ALLOYS
DE BROGLIE WAVELENGTH
LAYERS
LOSSES
MAGNETIC MOMENTS
NEUTRON BEAMS
NEUTRONS
POLARIZATION
THIN FILMS
WAVEGUIDES
ZIRCONIUM ALLOYS