Virtual Excitation and Multiple Scattering Correction Terms to the Neutron Index of Refraction for Hydrogen

The neutron index of refraction is generally derived theoretically in the Fermi approximation. However, the Fermi approximation neglects the effects of the binding of the nuclei of a material as well as multiple scattering. Calculations by Nowak introduced correction terms to the neutron index of re...

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Detalles Bibliográficos
Autores principales: Schoen, K., Snow, W. M., Kaiser, H., Werner, S. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2005
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4849607/
https://www.ncbi.nlm.nih.gov/pubmed/27308132
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author Schoen, K.
Snow, W. M.
Kaiser, H.
Werner, S. A.
author_facet Schoen, K.
Snow, W. M.
Kaiser, H.
Werner, S. A.
author_sort Schoen, K.
collection PubMed
description The neutron index of refraction is generally derived theoretically in the Fermi approximation. However, the Fermi approximation neglects the effects of the binding of the nuclei of a material as well as multiple scattering. Calculations by Nowak introduced correction terms to the neutron index of refraction that are quadratic in the scattering length and of order 10(−3) fm for hydrogen and deuterium. These correction terms produce a small shift in the final value for the coherent scattering length of H(2) in a recent neutron interferometry experiment.
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spelling pubmed-48496072016-06-15 Virtual Excitation and Multiple Scattering Correction Terms to the Neutron Index of Refraction for Hydrogen Schoen, K. Snow, W. M. Kaiser, H. Werner, S. A. J Res Natl Inst Stand Technol Article The neutron index of refraction is generally derived theoretically in the Fermi approximation. However, the Fermi approximation neglects the effects of the binding of the nuclei of a material as well as multiple scattering. Calculations by Nowak introduced correction terms to the neutron index of refraction that are quadratic in the scattering length and of order 10(−3) fm for hydrogen and deuterium. These correction terms produce a small shift in the final value for the coherent scattering length of H(2) in a recent neutron interferometry experiment. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2005 2005-06-01 /pmc/articles/PMC4849607/ /pubmed/27308132 Text en https://creativecommons.org/publicdomain/zero/1.0/ The Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.
spellingShingle Article
Schoen, K.
Snow, W. M.
Kaiser, H.
Werner, S. A.
Virtual Excitation and Multiple Scattering Correction Terms to the Neutron Index of Refraction for Hydrogen
title Virtual Excitation and Multiple Scattering Correction Terms to the Neutron Index of Refraction for Hydrogen
title_full Virtual Excitation and Multiple Scattering Correction Terms to the Neutron Index of Refraction for Hydrogen
title_fullStr Virtual Excitation and Multiple Scattering Correction Terms to the Neutron Index of Refraction for Hydrogen
title_full_unstemmed Virtual Excitation and Multiple Scattering Correction Terms to the Neutron Index of Refraction for Hydrogen
title_short Virtual Excitation and Multiple Scattering Correction Terms to the Neutron Index of Refraction for Hydrogen
title_sort virtual excitation and multiple scattering correction terms to the neutron index of refraction for hydrogen
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4849607/
https://www.ncbi.nlm.nih.gov/pubmed/27308132
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