Papers by Waclaw Gudowski
Progress in Nuclear Energy, Aug 1, 2023
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Zeitschrift für Physikalische Chemie, 1988
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Nuclear Science, Apr 5, 2006
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To appear in the proceedings of, 2007
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One of the most important highlights is reported progress in High Energy Transport (HET) code dev... more One of the most important highlights is reported progress in High Energy Transport (HET) code development. Particularly, we have noticed progress in following codes: Hermes code system - D. Filges, R.-D. Neef, H. Schaal and G. Sterzenbach, “The HERMES Monte Carlo Program Systems a Versatile Tool for Spallation Physics and Detectors” Fluka code - A. Fasso, A. Ferrari, J. Ranft and P. Sala, “FLUKA: Status and Perspectives for Hadronic Applications” MCNPX code - H.G. Hughes, “Status of the MCNPX Transport Code” Mars code system - N. Mokhov and O. Krivosheev, “MARS Code Status” NMTC/JAERI code - H. Takada, S. Meigo and K. Niita, “Present Status of Nucleon-Meson Transport Code NMTC/JAERI. GEANT 4 platform - M. Asai, “Generic Design of Physics Processes in Geant 4” EA-MC code, coupling HET physics of Fluka with new low-energy M-C transport routines including burn-up possibilities - Y. Kadi, “The EA-MC Monte Carlo Code Package - A New Approach to the Design of Accelerator-Driven Systems” and MCNP code widely used in coupling with HET for neutron-gamma-electron transport at energies below 20 MeV - E.C. Selcow, G.W. McKinney, “MCNP Capabilities at the Dawn of the 21st Century: Neutron-gamma Applications”.
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Nuclear Instruments and Methods in Physics Research, Jun 1, 2006
In this study simulation of different nuclear fuel cycle scenarios are performed. The reference s... more In this study simulation of different nuclear fuel cycle scenarios are performed. The reference scenario corresponds to a medium size nuclear power country, with 10 light water reactors (LWRs). The study addresses long-term, equilibrium fuel cycle scenarios, with and without plutonium recycling (MOX) in LWRs and transuranics (TRU) burning in accelerator-driven systems (ADS). However, also short-term phase-out scenarios, including TRU burning in ADS, are performed. The equilibrium simulation showed that four ADS units, each of 800MWt, are sufficient to burn an amount of plutonium and americium corresponding to the build-up of those elements. The phase-out simulation of a country adopting an approach to reduce the spent nuclear fuel inventory, showed that complementary burning of TRU in three to four ADS units appear suitable. The fuel cycle simulations have been performed using the Nuclear Fuel Cycle Simulation (NFCSim) code [C.G. Bathke, E.A. Schneider, NFCSim User's Manual, Los Alamos National Laboratory Report LA-UR-04-8369, 2004.] and the Monteburns code [D.I. Poston, H.R. Trellue, User's Manual, Version 2.0 for Monteburns, Version 1.0, LA-UR-99-4999, 1999.].
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Journal of Physics F: Metal Physics, Feb 1, 1985
ABSTRACT
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Annals of Nuclear Energy, Aug 1, 2009
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Nuclear Physics, 2000
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Il Nuovo Cimento D, Apr 1, 1990
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Transactions of the American Nuclear Society, 2008
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Physical review, Mar 1, 1986
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Journal of Non-crystalline Solids, May 1, 1993
Abstract The mode-coupling formalism for the memory function of the velocity autocorrelation func... more Abstract The mode-coupling formalism for the memory function of the velocity autocorrelation function formulated roughly 10 years ago by Sjolander, Sjogren and Wahnstrom is believed to describe the dynamical properties of argon and rubidium in the liquid state relatively well. Moreover, mode-coupling theory has been successfully applied to interpret a number of dynamical phenomena observed in a supercooled liquid approaching the liquid-glass transition. The results of a mode-coupling theory limited to four coupling terms and extended to Q -dependent memory functions over the region of 0–6 A −1 are discussed. The comparison with molecular dynamics (MD) data demonstrates that mode-coupling theory overestimates the long-time tail of the second-order memory function and fails to describe correctly the self-motion of liquid lead both at low and high temperature. The self-diffusion coefficient obtained from a mode-coupling calculation is about 25% too low. However, the analysis of the results at two different temperatures indicates that there is a systematic pattern in the discrepancies which suggests a possibility to improve the theoretical approach to match the MD-results.
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Nuclear Physics, Apr 1, 2005
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Journal of Physics F: Metal Physics, Oct 1, 1985
The dynamic scattering functions S(Q,E) experimentally determined for liquid lead at 623 and 1173... more The dynamic scattering functions S(Q,E) experimentally determined for liquid lead at 623 and 1173K and for liquid bismuth at 578K have been used to derive the corresponding intermediate scattering functions F(Q,t). The procedure involved a fitting of a sum of gaussians to the measured S(Q,E). Theoretical checkpoints are that the zeroth and the second energy moments are satisfactorily fulfilled. It
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Journal of Physics: Condensed Matter, Sep 4, 1989
Experimentally determined coherent dynamic scattering functions for liquid bismuth and lead are u... more Experimentally determined coherent dynamic scattering functions for liquid bismuth and lead are used to derive the van Hove correlation functions G(r,t) and Gs(r,t). It is demonstrated that it is possible to obtain direct and physically adequate information on the atomic self-motion from a neutron inelastic scattering measurement on a completely coherent scatterer.
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Nucleation and Atmospheric Aerosols, 1995
This study has been focused on an Accelerator‐Driven Energy Amplifier, based on the concept propo... more This study has been focused on an Accelerator‐Driven Energy Amplifier, based on the concept proposed by the CERN‐group. To analyze the performance of this system the extensive optimization of the core lattice was done, the temperature coefficients of reactivity were investigated, reactivity budget and power distribution were estimated
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Papers by Waclaw Gudowski