scholarly journals Measurement of Gamma-Ray from Inelastic Neutron Scattering on 56Fe

2020 ◽  
Vol 239 ◽  
pp. 01036
Author(s):  
WANG Zhaohui ◽  
REN Jie ◽  
WU Hongyi ◽  
QIAN Jing ◽  
HUANG Hanxiong ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Cross Sections ◽  
Nuclear Reactor ◽  
Gamma Ray ◽  
Inelastic Neutron Scattering ◽  
Nuclear Reactors ◽  
Nuclear Data ◽  
Inelastic Neutron ◽  
Radiation Shielding ◽  
Loss Mechanism

In nuclear reactors, inelastic neutron scattering is a significant energy-loss mechanism which has deep impacts on designments of nuclear reactor and radiation shielding. Iron is an important material in reactor. However, for the existing nuclear data for iron, there exists an obvious divergence for the inelastic scattering cross sections and the related gamma production sections. Therefore the precise measurements are urgently needed for satisfying the demanding to design new nuclear reactors (fast reactors), Accelerator Driven Subcritical System (ADS), and other nuclear apparatus. In this paper, we report a new system with an array of HPGe detectors, electronics and acquisition system. Experiments had been carried out on three neutron facilities.

INELASTIC NEUTRON SCATTERING IN THE ANHARMONIC MODEL OF HIGH-Tc SUPERCONDUCTORS

1990 ◽  
Vol 04 (05) ◽  
pp. 341-346 ◽  
Author(s):  
N. M. PLAKIDA ◽  
V. I. AKSENOV ◽  
S. L. DRECHSLER ◽  
T. GALBAATAR ◽  
S. STAMENKOVIC
Keyword(s):  
Neutron Scattering ◽  
Cross Sections ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Spin Model ◽  
Anomalous Temperature Dependence ◽  
High Tc Superconductors ◽  
Anomalous Temperature ◽  
High Tc ◽  
Oxygen Ions

The inelastic neutron scattering on highly anharmonic vibrations of oxygen ions in high-T c superconductors is studied in the framework of a pseudo-spin model. By evaluating the coherent and incoherent cross-sections, it is found that the scattering intensity exhibits an anomalous temperature dependence.

scholarly journals MEASUREMENT OF 182,184,186W (N, N’ γ) CROSS SECTIONS AND WHAT WE CAN LEARN FROM IT

2021 ◽  
Vol 247 ◽  
pp. 09003
Author(s):  
Greg Henning ◽  
Antoine Bacquias ◽  
Catalin Borcea ◽  
Mariam Boromiza ◽  
Roberto Capote ◽  
...  
Keyword(s):  
Neutron Energy ◽  
Cross Sections ◽  
Inelastic Neutron Scattering ◽  
Gamma Spectroscopy ◽  
Nuclear Data ◽  
Inelastic Neutron ◽  
Reaction Cross ◽  
Experimental Program ◽  
Prompt Gamma ◽  
Structure Information

Today’s development of nuclear installations rely on numerical simulation for which the main input are evaluated nuclear data. Inelastic neutron scattering (n, xn) is a reaction of importance because it modifies the neutron population, the neutron energy distribution and may create new isotopes. The study of this reaction on tungsten isotopes is interesting because it is a common structural material. Additionally, tungsten isotopes are a good testing field for theories. The IPHC group started an experimental program with the GRAPhEME setup installed at the neutron beam facility GELINA to measure (n, xn γ) reaction cross sections using prompt gamma spectroscopy and neutron energy determination by time-of-flight. The obtained experimental data provide constraints on nuclear reaction mechanisms models for 182,184,186W. Indeed, to reproduce correctly the experimental (n, n’ γ) cross-sections, the reaction codes must include accurate models of the reaction mechanism, nuclear de-excitation process and use correct nuclear structure information.

Level excitation cross sections of Mg, Cr52, Ni58, Ni60 and Nb93 by inelastic neutron scattering

1964 ◽  
Vol 16 (2) ◽  
pp. 113-120 ◽  
Author(s):  
D. L. Broder ◽  
V. E. Kolesov ◽  
A. I. Lashuk ◽  
I. P. Sadokhin ◽  
A. G. Dovbenko
Keyword(s):  
Neutron Scattering ◽  
Cross Sections ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Excitation Cross Sections
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