Results 21 to 30 of about 120,595 (308)

Self-Shielding Treatment to Perform Cell Calculation for Seed Furl In Th/U Pwr Using Dragon Code

open access: yesRenewable Energy and Sustainable Development, 2015
Time and precision of the results are the most important factors in any code used for nuclear calculations. Despite of the high accuracy of Monte Carlo codes, MCNP and Serpent, in many cases their relatively long computational time leads to difficulties ...
Ahmed Amin El Said Abd El Hameed   +2 more
doaj   +1 more source

Measurements and Monte-Carlo simulations of the particle self-shielding effect of B4C grains in neutron shielding concrete

open access: yes, 2018
A combined measurement and Monte-Carlo simulation study was carried out in order to characterize the particle self-shielding effect of B4C grains in neutron shielding concrete. Several batches of a specialized neutron shielding concrete, with varying B4C
Bentley, P. M.   +4 more
core   +1 more source

Quantitative evaluation of material-dependent elemental composition in ordinary concrete for radiation shielding applications

open access: yesNuclear Engineering and Technology
Determining the elemental composition of ordinary concrete for radiation shielding calculations is challenging, as existing guidelines often present differing compositions and typically lack essential information such as constituent materials, mix ...
Osamu Kontani   +6 more
doaj   +1 more source

Mutual shielding of neutron activation foils [PDF]

open access: yesEPJ Web of Conferences
For decommissioning purposes, stacks of foils are used in order to determine the neutron fluence rates in reactor buildings. Due to the relatively great thickness of these foils, self-shielding, as well as mutual shielding become significant for these ...
Ippel Ernst   +3 more
doaj   +1 more source

Shielding analysis in the design phase of the new Emergency Operation Facility for Tihange Nuclear Power Plant

open access: yesEPJ Web of Conferences, 2017
In the framework of the design studies for a new Emergency Operation Facility (EOF) for Tihange NPP, radiation protection analyses are needed to comply with effective dose rate criteria.
Genard Gilles   +3 more
doaj   +1 more source

Composite Function Antiderivative Transformation Iterative Deep Learning Solution Method for Hyper-fine Group Resonance Self-shielding Calculation in Homogeneous System

open access: yesYuanzineng kexue jishu
Resonance self-shielding calculations are crucial in reactor physics analysis and core design computation, as they serve as a preliminary step for conducting neutron transport or diffusion calculations based on macroscopic cross sections.
LIU Dong1, 2, CHEN Qilong1, 2, ZHANG Qian3, YU Jialei4
doaj   +1 more source

Processing and validation of JEFF-3.1.1 and ENDF/B-VII.0 group-wise cross section libraries for shielding calculations

open access: yesEPJ Web of Conferences, 2013
This paper presents a synthesis of the ENEA-Bologna Nuclear Data Group programme dedicated to generate and validate group-wise cross section libraries for shielding and radiation damage deterministic calculations in nuclear fission reactors, following ...
Orsi R.   +3 more
doaj   +1 more source

Analytical theory of coherent synchrotron radiation wakefield of short bunches shielded by conducting parallel plates

open access: yes, 2016
We develop a general model of coherent synchrotron radiation (CSR) impedance with shielding provided by two parallel conducting plates. This model allows us to easily reproduce all previously known analytical CSR wakes and to expand the analysis to the ...
Stupakov, Gennady, Zhou, Demin
core   +2 more sources

EMPLACEMENT DRIFT SHIELDING CALCULATION [PDF]

open access: yes, 1999
The purpose of this analysis is to determine the structural response of a TRIGA Department of Energy (DOE) spent nuclear fuel (SNF) codisposal canister placed in a 5-Defense High Level Waste (DHLW) waste package (WP) and subjected to a tipover design basis event (DBE) dynamic load; the results will be reported in terms of displacements and stress ...
openaire   +2 more sources

Collisional Effects on Nonlinear Ion Drag Force for Small Grains [PDF]

open access: yes, 2013
The ion drag force arising from plasma flow past an embedded spherical grain is calculated self-consistently and non-linearly using particle in cell codes, accounting for ion-neutral collisions.
Al'pert Y. L.   +2 more
core   +2 more sources

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