S-Wave Neutron Strength Functions of the Gd Isotopes

S. F. Mughabghab and R. E. Chrien
Phys. Rev. 180, 1131 – Published 20 April 1969
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Abstract

The neutron resonance structure of the gadolinium isotopes Gd155, Gd156, Gd157, Gd158, and Gd160 has been investigated over a wide energy region to determine the s-wave neutron strength functions, resonance parameters, and potential scattering radii. Values of the neutron strength functions as derived from an analysis of the average cross section in the keV region are found to be 2.4±0.2, 1.9±0.4, and 2.2±0.2, all in units of 104, for Gd155, Gd156, and Gd157, respectively. For Gd158 and Gd160, the values, as obtained from the resonance parameters, are 1.6±0.6 and 2.5±1.3. In addition, the 2200-m/sec cross sections and absorption resonance integrals are computed and are compared with available experimental data.

  • Received 2 December 1968

DOI:https://doi.org/10.1103/PhysRev.180.1131

©1969 American Physical Society

Authors & Affiliations

S. F. Mughabghab and R. E. Chrien

  • Brookhaven National Laboratory, Upton, New York 11973

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Issue

Vol. 180, Iss. 4 — April 1969

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