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Russian Geologic Repository Technical Papers and Reports

Description: Lawrence Livermore National Laboratory (LLNL) has been actively and continuously engaged in Russian geologic disposal activities since 1995. The first joint US-Russian meeting on Disposition of Excess Weapons Plutonium was held in January 1995 at Los Alamos National Laboratory (LANL). The meeting resulted in the appointment of Dr. L. J. Jardine from LLNL and Dr. T. A. Gupalo from the All-Russian Research and Design Institute of Production Engineering (VNIPIPT) as the US-Russian Federation (RF) … more
Date: February 18, 2002
Creator: Jardine, L
Partner: UNT Libraries Government Documents Department
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Potential Modulated Intercalation of Alkali Cations into Metal Hexacyanoferrate Coated Electrodes

Description: Nickel hexacyanoferrate is a polynuclear inorganic ion intercalation material that loads (intercalates) and elutes (deintercalates) alkali cations from its structure when electrochemically reduced and oxidized, respectively. Nickel hexacyanoferrrate (NiHCF) is known to preferentially intercalate cesium over all other alkali cations, thus providing a basis for a separation scheme that can tackle DOE's radiocesium contamination problem. This program studied fundamental issues in alkalization inte… more
Date: February 18, 2002
Creator: Schwartz, Daniel T.; Liu, Bekki; Lukman, Marlina; Jeerage, Kavita M.; Steen, William A.; Dai, Haixia et al.
Partner: UNT Libraries Government Documents Department
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Fuel design for the U.S. accelerator driven transmutation system.

Description: The U.S. concept for actinide transmutation is currently envisioned as a system to destroy plutonium as well as minor actinides in a single or two tier system. In order to maximize the actinide destruction rate, an inert matrix fuel is used. The effectiveness of transmutation in reducing the actinide inventory is linked to the development of a robust fuel system, capable of achieving very high burnup. Very little fuel performance data has been generated to date on inert matrix systems, and ther… more
Date: February 18, 2002
Creator: Meyer, M. K.; Hayes, S. L.; Crawford, D. C.; Pahl, R. G. & Tsai, H.
Partner: UNT Libraries Government Documents Department
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Order-disorder behavior in KNbO{sub 3} and KNbO{sub 3}/KTaO{sub 3} solid solutions and superlattices by molecular-dynamics simulations.

Description: We use molecular-dynamics simulation to examine the order-disorder behavior in pure ferroelectric KNbO{sub 3} and in KNbO{sub 3}-KTaO{sub 3} ferroelectric-paraelectric solid solutions and superlattices. We find that the order-disorder behavior is remarkably robust and plays an important role in both the polarization rotation associated with switching of the perfect crystal and in the dynamical behavior of the solid solutions and superlattices.
Date: February 18, 2002
Creator: Phillpot, S. R.; Sepliarsky, M.; Streiffer, S. K.; Stachiotti, M. G. & Migoni, R. L.
Partner: UNT Libraries Government Documents Department
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Yield Improvement in Steel Casting (Yield II)

Description: This report presents work conducted on the following main projects tasks undertaken in the Yield Improvement in Steel Casting research program: Improvement of Conventional Feeding and Risering Methods, Use of Unconventional Yield Improvement Techniques, and Case Studies in Yield Improvement. Casting trials were conducted and then simulated using the precise casting conditions as recorded by the participating SFSA foundries. These results present a statistically meaningful set of experimental da… more
Date: February 18, 2002
Creator: Hardin, Richard A.; Beckermann, Christoph & Hays, Tim
Partner: UNT Libraries Government Documents Department
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Soft hadronic physics at RHIC

Description: Although soft hadronic observables do not probe the early stages of a nucleus-nucleus collision directly, the data can be used to constrain the evolutionary path of the system. I review some of the experimental data from the first year of RHIC operations with Au+Au at sqrt(s)=130 GeV. This data includes particle yields, momentum spectra, and two-particle correlations. The data point to a system that develops strong radial flow and expands to roughly twice the size of the initial system before k… more
Date: February 18, 2002
Creator: Hardtke, David
Partner: UNT Libraries Government Documents Department
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New theoretical results on the proton decay of deformed and near-spherical nuclei.

Description: We discuss new theoretical results on the decay of deformed and near-spherical nuclei. We interpret the latest experimental results on deformed odd-A proton emitters, including fine structure, and discuss the use of particle-vibration coupling to calculate the decay rates of near-spherical emitters.
Date: February 18, 2002
Creator: Davids, C. N. & Esbensen, H.
Partner: UNT Libraries Government Documents Department
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Higgs sectors in which the only light higgs boson is CP-odd and linear collider strategies for its discovery

Description: We survey techniques for finding a CP-odd Higgs boson, A{sup 0}, at the Linear Collider that do not depend upon the presence of other light Higgs bosons. The potential reach in [m{sub A{sup 0}}, tan {beta}] parameter space for various production/discovery modes is evaluated and regions where discovery might not be possible at a given {radical}s are delineated. We give, for the first time, results for e{sup +}e{sup -} {yields} {nu}{bar {nu}} A{sup 0} one-loop W boson fusion production.
Date: February 18, 2002
Creator: Tom Farris, John F. Gunion and Heather E. Logan
Partner: UNT Libraries Government Documents Department
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ORNL Superconducting Technology Program for Electric Power Systems--Annual Report for FY 2001

Description: The Oak Ridge National Laboratory (ORNL) Superconducting Technology Program is conducted as part of a national effort by the US Department of Energy's Office of Energy Efficiency and Renewable Energy to develop the science and technology base needed by US industry for development of electric power applications of high-temperature superconductivity. The two major elements of this program are wire development and applications development. A new part of the wire research effort was the Accelerated… more
Date: February 18, 2002
Creator: Hawsey, RA
Partner: UNT Libraries Government Documents Department
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Measurement of the energy-spread contribution to information transfer limits in HR-TEM

Description: Sub-Angstrom TEM of materials at intermediate voltages requires a sub-Angstrom information limit for the microscope. With a Scherzer resolution of 1.7 Angstrom, but a sub-Angstrom information limit, the one-Angstrom microscope (OAM) project at the NCEM is able to generate resolution below 0.8 Angstrom. Microscope information limit comes from damping of transfer by the temporal coherence. A major term contributing to temporal coherence is energy spread in the electron beam. We derive a new expre… more
Date: February 18, 2002
Creator: O'Keefe, Michael A.; Tiemeijer, Peter C. & Sidorov, Maxim V.
Partner: UNT Libraries Government Documents Department
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Methods and codes for neutronic calculations of the MARIA research reactor.

Description: The core of the MARIA high flux multipurpose research reactor is highly heterogeneous. It consists of beryllium blocks arranged in 6 x 8 matrix, tubular fuel assemblies, control rods and irradiation channels. The reflector is also heterogeneous and consists of graphite blocks clad with aluminum. Its structure is perturbed by the experimental beam tubes. This paper presents methods and codes used to calculate the MARIA reactor neutronics characteristics and experience gained thus far at IAE and … more
Date: February 18, 2002
Creator: Andrzejewski, K.; Kulikowska, T.; Bretscher, M. M.; Hanan, N. A. & Matos, J. E.
Partner: UNT Libraries Government Documents Department
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Irradiation of structure material in spallation neutron sources.

Description: In principle, intense spallation neutron sources can be used not only to irradiate materials (e.g. window materials) and to validate different target geometries/concepts, but also to irradiate structural materials (samples, pins or even full assemblies) in order to characterize their behavior under irradiation (in a fast neutron field). However, a question arises concerning the ''representativity'' of such irradiations to reproduce the conditions encountered in a typical fast reactor. The prese… more
Date: February 18, 2002
Creator: Naberejnev, D. G. & Salvatores, M.
Partner: UNT Libraries Government Documents Department
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Report to DOE and Exelon Corporation: Matching Grant Program for the Nuclear Engineering Program at University of Wisconsin, Madison

Description: The DOE Industry Matching Grant Program, which began in 1992, is designed to encourage collaborative support for nuclear engineering education as well as research between the nation's nuclear industry and the U.S. Department of Energy (DOE). Over the past two decades nuclear engineering programs in the United States have witnessed a serious decline in student enrollments, number of faculty members and support from their host universities. Despite this decline, the discipline of nuclear engineer… more
Date: February 18, 2002
Creator: Corradini, Michael L.
Partner: UNT Libraries Government Documents Department
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