Recommended Thermal Cross Sections, Resonance Properties, and Resonance Parameters for Z = 61–102

2018 ◽  
pp. 111-679 ◽  
Keyword(s):  
Cross Sections ◽  
Resonance Parameters ◽  
Resonance Properties

scholarly journals Testing Compound Nucleus Hypothesis Across the 17O Nucleus Excitation

2019 ◽  
Vol 211 ◽  
pp. 02001 ◽  
Author(s):  
Aloys Nizigama ◽  
Pierre Tamagno ◽  
Olivier Bouland
Keyword(s):  
Cross Section ◽  
Compound Nucleus ◽  
Cross Sections ◽  
Center Of Mass ◽  
Ground States ◽  
Mass System ◽  
Resonance Parameters ◽  
Second Stage ◽  
Reference Framework ◽  
Kinetic Transformation

The excited compound nucleus 17O* has been studied over (n,α) and (α,n) cross sections modelling, respectively for 16O and 13C targets in their ground states. The modelling is fulfilled within the Reich-Moore formalism. We were able to calculate the (α,n) cross section by two separate ways: the direct kinematic standard route and by inversion of the (n,α) cross section using the compound nucleus hypothesis. Resonance parameters of the resolved resonance range (0 to 6 MeV) were borrowed from the CIELO project. In a first stage, the modelling is carried out in the referential of the incident particle (either way neutron or α) requesting conversion of the CIELO neutron-type resonance parameters to the α-type. In a second stage, the implementation is uniquely designed in the center of mass system of the excited compound nucleus. The resonance parameters are thus converted in that unique reference framework. The present investigation shows the consistency of the kinetic transformation that relies on the compound nucleus hypothesis.

Neutron Total Cross Sections and Resonance Parameters of Palladium

2016 ◽  
Vol 183 (2) ◽  
pp. 286-297 ◽  
Author(s):  
Taofeng Wang ◽  
Guinyun Kim ◽  
Young Do Oh ◽  
Moo-Hyun Cho ◽  
In Soo Ko ◽  
...  
Keyword(s):  
Cross Sections ◽  
Total Cross Sections ◽  
Resonance Parameters

Measurement of neutron total cross sections and resonance parameters of147Pm

1978 ◽  
Vol 45 (6) ◽  
pp. 1189-1191 ◽  
Author(s):  
V. A. Anufriev ◽  
T. S. Belanova ◽  
Yu. S. Zamyatnin ◽  
A. G. Kolesov ◽  
S. N. Nikol'skii ◽  
...  
Keyword(s):  
Cross Sections ◽  
Total Cross Sections ◽  
Resonance Parameters

Neutron capture cross section of 169Tm measured at the CSNS Back-n facility in the energy region from 30 keV to 300 keV

2021 ◽  
Author(s):  
Jie Ren ◽  
xichao ruan ◽  
Wei Jiang ◽  
Jie Bao ◽  
jincheng wang ◽  
...  
Keyword(s):  
Cross Sections ◽  
Energy Region ◽  
Liquid Scintillation ◽  
Spallation Neutron Source ◽  
Capture Cross ◽  
Total Uncertainty ◽  
Resonance Parameters ◽  
R Matrix ◽  
Average Resonance ◽  
Capture Cross Sections

Abstract The capture cross sections of the 169Tm(n, γ) reaction were measured at the back streaming white neutron beam line (Back-n) of the China Spallation Neutron Source (CSNS) using four C6D6 liquid scintillation detectors. To obtain accurate cross sections, the background subtraction, normalization, and correction were carefully taken into consideration in the data analysis. For the resonance at 3.9 eV, the R-matrix code SAMMY was used to determine the resonance parameters with internally normalization method. While the average capture cross sections of 169Tm in the energy range between 30 keV and 300 keV were extracted relative to the 197Au(n, γ) reaction. The measured cross sections of the 169Tm(n, γ) reaction were reported in logarithmically equidistant energy bins with 20 bins per energy decade with a total uncertainty of 5.4%-7.0% in this paper, and described in terms of average resonance parameters by means of a Hauser-Feshbach calculation with fluctuations. Both of the point-wise cross sections and the averge resonance parameters showed fair agreement with the evaluated values of ENDF/B-VIII.0 library in the energy region studied.

LORENTZIAN-LIKE MODELS OF E1 RADIATIVE STRENGTH FUNCTIONS

2009 ◽  
Vol 18 (04) ◽  
pp. 996-1001 ◽  
Author(s):  
V. A. PLUJKO ◽  
O. M. GORBACHENKO ◽  
E. V. KULICH
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Giant Dipole Resonance ◽  
Theoretical Calculations ◽  
Strength Function ◽  
Resonance Parameters ◽  
Dipole Resonance ◽  
Radiative Strength Function ◽  
Asymmetric Shape ◽  
Strength Functions

Photoabsorption cross sections and dipole γ-decay strength functions are calculated and compared with experimental data to test Lorentzian-like models of their description in the middle-weight and heavy atomic nuclei. Approaches with asymmetric shape of the radiative strength function are recommended for overall estimation of the dipole γ-strengths. The ready-to-use table of giant dipole resonance parameters and their errors are obtained from fitting the theoretical calculations for photoabsorption cross sections to the experimental data. Systematics for giant dipole resonance parameters are given.

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