Journal ArticleDOI
Evaluation of Neutron Cross Sections of Hydrogen from 20 MeV to 1 GeV
TLDR
In this article, the authors evaluated the total, elastic and inelastic scattering and capture cross sections, covariance matrix of total cross section and photon production cross section associated with the capture process.Abstract:
The neutron cross sections of hydrogen (1H) have been evaluated in the energy region from 20 MeV to 1 GeV. Evaluated quantities are the total, elastic and inelastic scattering and capture cross sections, covariance matrix of total cross section and photon production cross section associated with the capture process. The total cross section was evaluated by combining the results obtained from the generalized least-squares method and the phase-shift data. The phase-shift data have been also used to calculate the elastic and inelastic scattering cross sections and their angular distributions. The capture cross section was calculated from the deuteron photo-disintegration cross section in conjunction with the principle of detailed balance. The presently evaluated data give a good description of the available experimental data in general and are also in good accord with those values given in ENDF-B/VI that are available below 100 MeV.read more
Citations
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Journal ArticleDOI
Measurement and Analysis of Fission Rate Distributions of 237Np and 238U in a Polyethylene System with a 65 MeV Neutron Source
Tomohiko Iwasaki,Yoshimasa Sakuya,Naohiro Hirakawa,Hiroshi Nakashima,Yukio Sakamoto,Hiroshi Takada,Susumu Tanaka +6 more
TL;DR: In this paper, the NMTC/JAERI code was analyzed by changing cross sections and angular distributions of hydrogen and carbon and employing three options of the intra-nuclear cascade/evaporation calculation of NMTC and JERI.
Journal ArticleDOI
Improvement of angular differential elastic scattering cross sections in nucleon-meson transport code NMTC/JAERI97 for neutron transmission experiment analysis
TL;DR: In this article, the angular distribution of the neutron elastic scattering for the energy region from 20 to 100 MeV was revised in the NMTC/JAERI97 code and the approximation of the first order Bessel function was changed to the random sampling based on the database evaluated by the optical model potential parameters (OMPs).
Journal ArticleDOI
Fast-Neutron Background at the Baksan Underground Scintillation Telescope
M. M. Kochkarov,M. M. Boliev,I. M. Dzaparova,Yu. F. Novoseltsev,R. V. Novoseltseva,V. B. Petkov,A. F. Yanin +6 more
TL;DR: In this article, the contribution from the elastic scattering of fast neutrons off protons to the overall single-event background rate measured in the inner detector planes is estimated via neutron activation analysis.
References
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Journal ArticleDOI
Local phenomenological nucleon-nucleon potentials
TL;DR: Hard (infinitely hard) and soft (Yukawa) core potentials have been fit to Yale and Livermore phase parameters and low-energy data as discussed by the authors, and it is found that neither the short-range behavior of the potentials nor the central-to-tensor ratio in the 3 S 1 - 3 D 1 state is well determined by the data.
Book ChapterDOI
The Meson Theory of Nuclear Forces and Nuclear Structure
TL;DR: The purpose of this chapter is to review this “traditional” approach in the area of nuclear forces and their applications to nuclear structure.
Journal ArticleDOI
A guide to microscopic models for intermediate energy heavy ion collisions
George F. Bertsch,S. Das Gupta +1 more
TL;DR: In the last few years heavy ion experiments have addressed key questions regarding the behavior of nuclear matter at high excitation and density as discussed by the authors, which has been achieved by the formulation of calculational tools to apply microscopic models to experimental observables.
Journal ArticleDOI
A potential model representation of two-nucleon data below 315 MeV
T. Hamada,I.D. Johnston +1 more
TL;DR: In this article, an energy independent nucleon-nucleon potential model was proposed to represent the n-p data in a satisfactory manner for the first time, and the phase shifts predicted by the model were in fair agreement with the solutions YLAM ( T = 1) and YLAN3M (T = 0) recently found by the Yale group.
Journal ArticleDOI
Nucleon-nucleon partial-wave analysis to 1100 MeV.
TL;DR: Comprehensive analyses of nucleon-nucleon elastic-scattering data below 1100 MeV laboratory kinetic energy are presented and a resonancelike structure is found to occur in the /sup 1/D/sub 2/, /sup 3/F/sub 3/, /Sup 3/P/ sub 2/-/sup 3-F/ Sub 2/, and /sup 2/H/sub 4/ partial waves.