Abstract
Predictions of capture cross sections by Hauser-Feshbach calculations should be based on accurate gamma-ray strength functions and level densities. In the mass region 135{<=}A{<=}205 gamma-ray strength function models for dipole radiation were evaluated by demanding a simultaneous reproduction of average resonance data, capture cross sections and gamma-ray production spectra. The best results for E1 are obtained with a strength derived from a `generalized Lorentzian` with a non-zero limit as the energy tends to zero and a width dependent on energy and deformation. The authors recommend for M1 to derive the strength from a spin-flip giant resonance of Lorentzian shape. (author). 28 refs., 5 figs.
Uhl, M;
[1]
Kopecky, J
[2]
- Vienna Univ. (Austria). Inst. fuer Radiumforschung und Kernphysik
- Netherlands Energy Research Foundation (ECN), Petten (Netherlands)
Citation Formats
Uhl, M, and Kopecky, J.
Neutron capture cross sections and gamma-ray strength functions.
Netherlands: N. p.,
1992.
Web.
Uhl, M, & Kopecky, J.
Neutron capture cross sections and gamma-ray strength functions.
Netherlands.
Uhl, M, and Kopecky, J.
1992.
"Neutron capture cross sections and gamma-ray strength functions."
Netherlands.
@misc{etde_10145457,
title = {Neutron capture cross sections and gamma-ray strength functions}
author = {Uhl, M, and Kopecky, J}
abstractNote = {Predictions of capture cross sections by Hauser-Feshbach calculations should be based on accurate gamma-ray strength functions and level densities. In the mass region 135{<=}A{<=}205 gamma-ray strength function models for dipole radiation were evaluated by demanding a simultaneous reproduction of average resonance data, capture cross sections and gamma-ray production spectra. The best results for E1 are obtained with a strength derived from a `generalized Lorentzian` with a non-zero limit as the energy tends to zero and a width dependent on energy and deformation. The authors recommend for M1 to derive the strength from a spin-flip giant resonance of Lorentzian shape. (author). 28 refs., 5 figs.}
place = {Netherlands}
year = {1992}
month = {Oct}
}
title = {Neutron capture cross sections and gamma-ray strength functions}
author = {Uhl, M, and Kopecky, J}
abstractNote = {Predictions of capture cross sections by Hauser-Feshbach calculations should be based on accurate gamma-ray strength functions and level densities. In the mass region 135{<=}A{<=}205 gamma-ray strength function models for dipole radiation were evaluated by demanding a simultaneous reproduction of average resonance data, capture cross sections and gamma-ray production spectra. The best results for E1 are obtained with a strength derived from a `generalized Lorentzian` with a non-zero limit as the energy tends to zero and a width dependent on energy and deformation. The authors recommend for M1 to derive the strength from a spin-flip giant resonance of Lorentzian shape. (author). 28 refs., 5 figs.}
place = {Netherlands}
year = {1992}
month = {Oct}
}