Parameters of slow neutron resonances in Sm, Gd, Ta, Re and Ir isotopes

F. Poortmans; H. Ceulemans

doi:10.1016/0375-9474(67)90529-5

Parameters of slow neutron resonances in Sm, Gd, Ta, Re and Ir isotopes

F. Poortmans, H. Ceulemans

Research output › peer-review

Abstract

Measurements of the ratio Γ_n/Γ by resonant scattering experiments with a neutron crystal spectrometer have been performed in order to determine the spin J of the resonances. The following results have been obtained: ¹⁴⁷Sm, 3.4 eV: J = 3; ¹⁴⁷Sm, 18.3 eV: J = 4; ¹⁴⁹Sm, 0.0976 eV: J = 4; ¹⁴⁹Sm, 0.87 eV: J = 4, ¹⁵⁷Gd, 17.1 eV: J = 2; ¹⁸¹Ta, 24.1 eV: J = 3; ¹⁸⁵Re, 2.156 eV: J = 3; ¹⁹¹Ir, 0.654 eV: J = 2; ¹⁹¹Ir, 5.36 eV: J = 2; ¹⁹³Ir, 1.303 eV: J = 2; and probably J = 2 for two resonances at 9.07 eV of ¹⁹¹Ir and ¹⁹³Ir.

Original language	English
Pages (from-to)	657-665
Number of pages	9
Journal	Nuclear Physics, Section A
Volume	97
Issue number	3
DOIs	https://doi.org/10.1016/0375-9474(67)90529-5
State	Published - 8 May 1967

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/0375-9474(67)90529-5

Cite this

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title = "Parameters of slow neutron resonances in Sm, Gd, Ta, Re and Ir isotopes",

abstract = "Measurements of the ratio Γn/Γ by resonant scattering experiments with a neutron crystal spectrometer have been performed in order to determine the spin J of the resonances. The following results have been obtained: 147Sm, 3.4 eV: J = 3; 147Sm, 18.3 eV: J = 4; 149Sm, 0.0976 eV: J = 4; 149Sm, 0.87 eV: J = 4, 157Gd, 17.1 eV: J = 2; 181Ta, 24.1 eV: J = 3; 185Re, 2.156 eV: J = 3; 191Ir, 0.654 eV: J = 2; 191Ir, 5.36 eV: J = 2; 193Ir, 1.303 eV: J = 2; and probably J = 2 for two resonances at 9.07 eV of 191Ir and 193Ir.",

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author = "F. Poortmans and H. Ceulemans",

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TY - JOUR

T1 - Parameters of slow neutron resonances in Sm, Gd, Ta, Re and Ir isotopes

AU - Poortmans, F.

AU - Ceulemans, H.

PY - 1967/5/8

Y1 - 1967/5/8

N2 - Measurements of the ratio Γn/Γ by resonant scattering experiments with a neutron crystal spectrometer have been performed in order to determine the spin J of the resonances. The following results have been obtained: 147Sm, 3.4 eV: J = 3; 147Sm, 18.3 eV: J = 4; 149Sm, 0.0976 eV: J = 4; 149Sm, 0.87 eV: J = 4, 157Gd, 17.1 eV: J = 2; 181Ta, 24.1 eV: J = 3; 185Re, 2.156 eV: J = 3; 191Ir, 0.654 eV: J = 2; 191Ir, 5.36 eV: J = 2; 193Ir, 1.303 eV: J = 2; and probably J = 2 for two resonances at 9.07 eV of 191Ir and 193Ir.

AB - Measurements of the ratio Γn/Γ by resonant scattering experiments with a neutron crystal spectrometer have been performed in order to determine the spin J of the resonances. The following results have been obtained: 147Sm, 3.4 eV: J = 3; 147Sm, 18.3 eV: J = 4; 149Sm, 0.0976 eV: J = 4; 149Sm, 0.87 eV: J = 4, 157Gd, 17.1 eV: J = 2; 181Ta, 24.1 eV: J = 3; 185Re, 2.156 eV: J = 3; 191Ir, 0.654 eV: J = 2; 191Ir, 5.36 eV: J = 2; 193Ir, 1.303 eV: J = 2; and probably J = 2 for two resonances at 9.07 eV of 191Ir and 193Ir.

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