Results 41 to 50 of about 227,231 (227)

Benchmarking a first-principles thermal neutron scattering law for water ice with a diffusion experiment

EPJ Web of Conferences, 2017
The neutron scattering properties of water ice are of interest to the nuclear criticality safety community for the transport and storage of nuclear materials in cold environments.
Holmes Jesse, Zerkle Michael, Heinrichs David   +2 more
doaj   +1 more source

Short Range Correlations and Spectral Functions in Asymmetric Nuclear Matter [PDF]

, 2005
Dynamical correlations in asymmetric infinite nuclear matter are investigates in a transport theoretical approach. Self-energies due to short range correlations and their influence on the nucleon spectral functions are described in an approach accounting
Konrad, P., Lenske, H., Mosel, U.
core   +1 more source

Inverse method to obtain reactivity in nuclear reactors with P1 point reactor kinetics model using matrix formulation

Nuclear Engineering and Technology, 2021
The aim of this work considers a second order point reactor kinetics model based on the P1 approximation of transport theory, called in this work as P1 point reactor model.
Daniel Suescún-Díaz, Gilberto Espinosa-Paredes, Freddy Humberto Escobar   +2 more
doaj   +1 more source

Transport parameters in neutron stars from in-medium NN cross sections

, 2010
We present a numerical study of shear viscosity and thermal conductivity of symmetric nuclear matter, pure neutron matter and $\beta$-stable nuclear matter, in the framework of the Brueckner theory. The calculation of in-medium cross sections and nucleon
Lombardo, U., Zhang, H. F., Zuo, W.
core   +1 more source

Probing the isospin dependent mean field and nucleon nucleon cross section in the medium by the nucleon emissions

, 2003
We study the isospin effects of the mean field and two-body collision on the nucleon emissions at the intermediate energy heavy ion collisions by using an isospin dependent transport theory.
Aichelin J, Aichelin J, Baran V, Bertsch G H, Colonna M, Guo Wen-Jun, Klakow D, Kunde G J, Li B A, Li B A, Li B A, Li B A, Li B A, Li Q F, Liu H, Liu J Y, Liu J Y, Liu Jian-Ye, Miller M L, Ngo C, Pak R, Pak R, Pak R, Pak R, Rami F, Reinhard P G, Schröder U W, Sobotka L G, Sobotka L G, Tan W P (MSUCL-1198), Xiao Z G, Xing Yong-Zhong, Xu H, Yang Y F, Yennello S J, Yennello S J, Yennello S J   +36 more
core   +1 more source

Numerical qualification of the GSP3(0) theory using the analytic function expansion nodal method [PDF]

EPJ Web of Conferences
The simplified P3 (SP3) method is an important way to implement the pin-by-pin neutron transport calculation of the core. This method has the high accuracy but costs twice the computing time of the diffusion method.
Shi Jun, Peng Lianghui, Bi Guangwen, Yang Bo   +3 more
doaj   +1 more source

Diffusion Approximation to Neutron Transport Equation with First Kind of Chebyshev Polynomials

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2015
: The first kind of Chebyshev polynomials are used for the series expansion of the neutron angular flux in neutron transport theory. The first order approximation known as the diffusion approximation is applied to one-dimensional neutron transport ...
Ökkeş EGE, Hakan ÖZTÜRK, Ahmet BÜLBÜL   +2 more
doaj  

Transport in very dilute solutions of $^3$He in superfluid $^4 $He

, 2013
Motivated by a proposed experimental search for the electric dipole moment of the neutron (nEDM) utilizing neutron-$^3$He capture in a dilute solution of $^3$He in superfluid $^4 $He, we derive the transport properties of dilute solutions in the regime ...
Baym, Gordon, Beck, D. H., Pethick, C. J.   +2 more
core   +1 more source

Pin-by-pin Calculation of Reactor Core-Based on Quasi-diffusion in Rectangular Grid

Yuanzineng kexue jishu, 2023
Physical calculations of reactor cores are fundamental for reactor core design and nuclear safety analysis. The second generation of core calculation theory and methods based on advanced component homogenization theory and modern coarse grid block ...
YAN Jiangtao;LIU Kun;ZHUANG Kun;WANG Senshan;ZHANG Kaihui;ZHANG Xinxin
doaj  

Solution of different geometries reflected reactors neutron diffusion equation using the homotopy perturbation method

Results in Physics, 2019
The Homotopy Perturbation Method (HPM) proves continuous efficiency for a long time in solving linear and nonlinear mathematical differential equations and their applications in physical and engineering phenomena.
Mohammed Shqair
doaj   +1 more source