The Gamma-Ray Distribution From Oriented Cerium-141

The distribution of gamma-radiation emitted in the decay of Ce(141) nuclei alined in neodymium ethylsulfate single crystals has been remeasured for temperatures as low as 0.0162 °K and has been found to be considerably more anisotropic than previously thought. The discrepancy is explained on the bas...

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Detalles Bibliográficos
Autores principales: Schooley, J. F., Hoppes, D. D., Hirshfeld, A. T.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 1962
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312814/
http://dx.doi.org/10.6028/jres.066A.031
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author Schooley, J. F.
Hoppes, D. D.
Hirshfeld, A. T.
author_facet Schooley, J. F.
Hoppes, D. D.
Hirshfeld, A. T.
author_sort Schooley, J. F.
collection PubMed
description The distribution of gamma-radiation emitted in the decay of Ce(141) nuclei alined in neodymium ethylsulfate single crystals has been remeasured for temperatures as low as 0.0162 °K and has been found to be considerably more anisotropic than previously thought. The discrepancy is explained on the basis of preferential scattering of the plane-polarized radiation in the Dewar system. Similar measurements with Ce(141) nuclei oriented in a polarized cerium ethylsulfate crystal have been made. The hyperfine constant for Ce(141) in the neodymium ethylsulfate lattice is deduced as A =0.0305±0.003 cm(−1), and the E2/M1 ratio for the 145-kev gamma ray in Pr(141) is +0.068 ±0.008.
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spelling pubmed-53128142023-06-15 The Gamma-Ray Distribution From Oriented Cerium-141 Schooley, J. F. Hoppes, D. D. Hirshfeld, A. T. J Res Natl Bur Stand A Phys Chem Article The distribution of gamma-radiation emitted in the decay of Ce(141) nuclei alined in neodymium ethylsulfate single crystals has been remeasured for temperatures as low as 0.0162 °K and has been found to be considerably more anisotropic than previously thought. The discrepancy is explained on the basis of preferential scattering of the plane-polarized radiation in the Dewar system. Similar measurements with Ce(141) nuclei oriented in a polarized cerium ethylsulfate crystal have been made. The hyperfine constant for Ce(141) in the neodymium ethylsulfate lattice is deduced as A =0.0305±0.003 cm(−1), and the E2/M1 ratio for the 145-kev gamma ray in Pr(141) is +0.068 ±0.008. [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 1962 1962-08-01 /pmc/articles/PMC5312814/ http://dx.doi.org/10.6028/jres.066A.031 Text en https://creativecommons.org/publicdomain/zero/1.0/ The Journal of Research of the National Bureau of Standards Section A 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
Schooley, J. F.
Hoppes, D. D.
Hirshfeld, A. T.
The Gamma-Ray Distribution From Oriented Cerium-141
title The Gamma-Ray Distribution From Oriented Cerium-141
title_full The Gamma-Ray Distribution From Oriented Cerium-141
title_fullStr The Gamma-Ray Distribution From Oriented Cerium-141
title_full_unstemmed The Gamma-Ray Distribution From Oriented Cerium-141
title_short The Gamma-Ray Distribution From Oriented Cerium-141
title_sort gamma-ray distribution from oriented cerium-141
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312814/
http://dx.doi.org/10.6028/jres.066A.031
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