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Adapting SAM for CDF

Description: The CDF and D0 experiments probe the high-energy frontier and as they do so have accumulated hundreds of Terabytes of data on the way to petabytes of data over the next two years. The experiments have made a commitment to use the developing Grid based on the SAM system to handle these data. The D0 SAM has been extended for use in CDF as common patterns of design emerged to meet the similar requirements of these experiments. The process by which the merger was achieved is explained with particular emphasis on lessons learned concerning the database design patterns plus realization of the use cases.
Date: October 13, 2003
Creator: Bonham, D.; Garzoglio, G.; Herber, R.; Kowalkowski, J.; Litvintsev, D.; Lueking, L. et al.
Partner: UNT Libraries Government Documents Department

Research Opportunities for Studies of Contaminant Transport in Fluvial Systems at the TIMS Branch - Steed Pond System, Savannah River Site

Description: A workshop to identify the scientific issues associated with contamination in riparian, fluvial, and hyporheic systems was held in March 2003 at the Savannah River Site (SRS). The workshop examined the general scientific remediation challenges and research opportunities in such systems and on Tims Branch - Steed Pond, a specific uranium- and heavy-metal-contaminated riparian system at SRS. A diverse group of scientists representing a wide range of scientific disciplines came from academia, national laboratories, and research centers to develop recommendations for future ERSD research opportunities. There was agreement among the workshop participants that riparian, fluvial, and hyporheic systems represent a unique opportunity to advance science and to enable progress on DOE's environmental cleanup of contaminated sites. The participants at this workshop documented both the critical need and the great promise for research on hydrological and biogeochemical processes controlling contaminant transport and fate in contaminated surface and near-surface systems. The approach of the workshop was to assess the Tims Branch - Steed Pond system at the SRS as an appropriate site to identify research needs that support potential remediation strategies.
Date: August 13, 2003
Creator: Looney, B. B.
Partner: UNT Libraries Government Documents Department

CHARACTERIZATION OF AIRFLOWS NEAR THE EXIT OF HVAC REGISTERS USING LASER DOPPLER VELOCIMETRY (LDV).

Description: A facility to characterize the airflow at the exit of HVAC registers was designed and fabricated. The objective of this work is to obtain velocity and turbulence data at the exit of registers, which can then be used as an input boundary condition in a modern Computational Fluid Dynamics (CFD) code to predict the velocity and temperature distribution in an enclosure, and also the register performance parameters such as throw. During the course of this work, two commonly used registers were tested. Both registers were 8 inch x 4 inch sidewall registers. Laser Doppler Velocimetry was used to measure the axial and vertical components of the velocity vector at various locations across the face of the registers. For the two cases of registers studied here, the results suggest that the velocity field at the very exit of each of these registers scales with the flow rate through the registers. This means that, in the mode of operation in which the supply fan (of an HVAC system) has a ''High'' and ''Low'' setting, similar velocity scaling would result for the type of registers tested here.
Date: March 13, 2003
Creator: TUTU,N.K.; KRISHNA,C.R.; ANDREWS,J.W. & BUTCHER,T.A.
Partner: UNT Libraries Government Documents Department

Remote Inspection of a 46 Year Old Buried High Level Waste Storage Tank

Description: This paper provides a description of the remote ultrasonic examinations of a high level radioactive waste storage tank at the Savannah River Site. The inspections were performed from the contaminated, annular space of the 46 year old, inactive, 1.03 million gallon waste storage tank.
Date: May 13, 2003
Creator: Elder, J.B.
Partner: UNT Libraries Government Documents Department

The scalar {kappa} from D{sup +} {yields} K{sup -} {pi}{sup +}{pi}{sup +}: Further studies

Description: We briefly review the recent results obtained by Fermilab experiment E791 on the Dalitz plot analysis of the decay D{sup +} {yields} K{sup -} {pi}{sup +}{pi}{sup +}, where indication for a light K {pi} scalar resonance, the {kappa}, was found. We also present preliminary studies providing further information on the phase behavior of the scalar components at low mass, supporting the previous indication for the {kappa}.
Date: August 13, 2003
Creator: Gobel, Carla
Partner: UNT Libraries Government Documents Department

Evaluating the Effects of Tri-Butyl Phosphate and Normal Paraffin Hydrocarbon in Simulated Low-Activity Waste Solution on Ion Exchange

Description: Ultrafiltration and ion exchange are among the pretreatment processes selected for the WTP at the Hanford Site. This study is the second part of a two-part study on Evaluating the Effects of Tri-Butyl Phosphate and Normal Paraffin Hydrocarbon in Simulated Low-Activity Waste Solution on Ultrafiltration and Ion Exchange.
Date: May 13, 2003
Creator: Adu-Wusu, K.
Partner: UNT Libraries Government Documents Department

Advanced Tokamak Plasmas in the Fusion Ignition Research Experiment

Description: The Advanced Tokamak (AT) capability of the Fusion Ignition Research Experiment (FIRE) burning plasma experiment is examined with 0-D systems analysis, equilibrium and ideal-MHD stability, radio-frequency current-drive analysis, and full discharge dynamic simulations. These analyses have identified the required parameters for attractive burning AT plasmas, and indicate that these are feasible within the engineering constraints of the device.
Date: October 13, 2003
Creator: Kessel, C.E.; Meade, D.; Swain, D.W.; Titus, P. & Ulrickson, M.A.
Partner: UNT Libraries Government Documents Department

TECHNOLOGY ROADMAPPING FOR IAEA SEALS.

Description: In the fall of 2002, the U.S. Support Program (USSP) initiated an effort to define a strategy or ''roadmap'' for future seals technologies and to develop a generalized process for planning safeguards equipment development, which includes seals and other safeguards equipment. The underlying objectives of the USSP include becoming more proactive than reactive in addressing safeguards equipment needs, helping the IAEA to maintain an inventory of cost-effective, reliable, and effective safeguards equipment, establishing a long-term planning horizon, and securing IAEA ownership in the process of effective requirements definition and timely transitioning of new or improved systems for IAEA use. At an initial workshop, seals, their functions, performance issues, and future embodiments were discussed in the following order: adhesive seals, metal seals, passive and active loop seals, ultrasonic seals, tamper indicating enclosures (including sample containers, equipment enclosures, and conduits). Suggested improvements to these technologies focused largely on a few themes: (1) The seals must be applied quickly, easily, and correctly; (2) Seals and their associated equipment should not unduly add bulk or weight to the inspectors load; (3) Rapid, in-situ verifiability of seals is desirable; and (4) Seal systems for high risk or high value applications should have two-way, remote communications. Based upon these observations and other insights, the participants constructed a skeletal approach for seals technology planning. The process begins with a top-level review of the fundamental safeguards requirements and extraction of required system features, which is followed by analysis of suitable technologies and identification of technology gaps, and finally by development of a planning schedule for system improvements and new technology integration. Development of a comprehensive procedure will require the partnership and participation of the IAEA. The presentation will include a description of the roadmapping approach developed for safeguards technologies and an overview of the initial seals workshop results.
Date: July 13, 2003
Creator: HOFFHEINS,B.; ANNESE,C.; GOODMAN,M.; OCONNOR,W.; GUSHUE,S. & PEPPER,S.
Partner: UNT Libraries Government Documents Department

Advanced Chemistry Basins Model

Description: The objective of this project is to: (1) Develop a database of additional and better maturity indicators for paleo-heat flow calibration; (2) Develop maturation models capable of predicting the chemical composition of hydrocarbons produced by a specific kerogen as a function of maturity, heating rate, etc.; assemble a compositional kinetic database of representative kerogens; (3) Develop a 4 phase equation of state-flash model that can define the physical properties (viscosity, density, etc.) of the products of kerogen maturation, and phase transitions that occur along secondary migration pathways; (4) Build a conventional basin model and incorporate new maturity indicators and data bases in a user-friendly way; (5) Develop an algorithm which combines the volume change and viscosities of the compositional maturation model to predict the chemistry of the hydrocarbons that will be expelled from the kerogen to the secondary migration pathways; (6) Develop an algorithm that predicts the flow of hydrocarbons along secondary migration pathways, accounts for mixing of miscible hydrocarbon components along the pathway, and calculates the phase fractionation that will occur as the hydrocarbons move upward down the geothermal and fluid pressure gradients in the basin; and (7) Integrate the above components into a functional model implemented on a PC or low cost workstation.
Date: February 13, 2003
Creator: Blanco, Mario; Cathles, Lawrence; Manhardt, Paul; Meulbroek, Peter & Tang, Yongchun
Partner: UNT Libraries Government Documents Department

Systematic uncertainties on Delta m2 from neutrino physics, using calorimetric energy reconstruction

Description: This report describes how uncertainties in neutrino interactions, particularly at neutrino energies of a few GeV, can contribute to uncertainties in measurements of neutrino oscillation parameters for experiments using calorimetric devices. Uncertainties studied include those on final state multiplicities, cross sections, electron-hadron calorimeter differences, and nuclear rescattering.
Date: August 13, 2003
Creator: Harris, Deborah A.
Partner: UNT Libraries Government Documents Department

A MODEL FOR PRODUCING STABLE, BROADBAND TERAHERTZ COHERENT SYNCHROTRONRADIATION IN STORAGE RINGS

Description: We present a model for producing stable broadband coherent synchrotron radiation (CSR) in the terahertz frequency region in an electron storage ring. The model includes distortion of bunch shape from the synchrotron radiation (SR), enhancing higher frequency coherent emission and limits to stable emission due to a microbunching instability excited by the SR. We use this model to optimize the performance of a source for CSR emission.
Date: June 13, 2003
Creator: Sannibale, Fernando; Byrd, John M.; Loftsdottir, Agusta; Martin, MichaelC. & Venturini, Marco
Partner: UNT Libraries Government Documents Department

Proof-of-concept experiments for negative ion driver beams forheavy ion fusion

Description: Negative halogen ion beams have recently been proposed as heavy ion fusion drivers. They would avoid the problem of electron accumulation in positive ion beams, and could be efficiently photodetached to neutrals if desired [1]. Initial experiments using chlorine produced a current density of 45 mA/cm{sup 2} of 99.5% atomic negative Cl with an e/Cl{sup -} ratio as low as 7:1 and good emittance.
Date: May 13, 2003
Creator: Grisham, L.R.; Hahto, S.K.; Hahto, S.T.; Kwan, J.W. & Leung, K.N.
Partner: UNT Libraries Government Documents Department

Department of Energy Support for Operations of the WMO/GAW Quality Control/Science Activity Center for the Americas

Description: As a formal activity of the World Meteorological Organization's Global Atmosphere Watch, to provide, through agency collaboration, a center of excellence in the United States that would impose quality assurance techniques on data collected by national air and precipitation quality networks operating in the Americas (north, south, and central).
Date: November 13, 2003
Creator: Hicks, B. B.
Partner: UNT Libraries Government Documents Department

Colloid-Facilitated Transport of Radionuclides through the Vadose Zone

Description: This project seeks to improve the basic understanding of the role of colloids in facilitating the transport of contaminants in the vadose zone. We focus on three major thrusts: (1) thermodynamic stability and mobility of colloids formed by reactions of sediments with highly alkaline tank waste solutions, (2) colloid-contaminant interactions, and (3) in situ colloid mobilization and colloid facilitated contaminant transport occurring in both contaminated and uncontaminated Hanford sediments.
Date: June 13, 2003
Creator: Flury, Markus; Harsh, James B.; Zachara, John M.; McCarthy, John F. & Lichtner, Peter C.
Partner: UNT Libraries Government Documents Department

Scaling Rules for Pre-Injector Design

Description: Proposed designs of the prebunching system of the NLC and TESLA are based on the assumption that scaling the SLC design to NLC/TESLA requirements should provide the desired performance. A simple equation is developed to suggest a scaling rule in terms of bunch charge and duration. Detailed simulations of prebunching systems scaled from a single design have been run to investigate these issues.
Date: July 13, 2003
Creator: Schwarz, Tom & Amidei, Dan
Partner: UNT Libraries Government Documents Department

IRON PHOSPHATE GLASSES: AN ALTERNATIVE FOR VITRIFYING CERTAIN NUCLEAR WASTES

Description: During the past year, iron phosphate glasses containing the following three types of nuclear waste, as recommended by the Tank Focus Area (TFA) group, have been investigated. (1) a high sodium/sulfate Hanford Low-Activity Waste (LAW) (2) a High Chrome Waste (HCW) at Hanford, and (3) a Sodium Bearing Waste (SBW) at Idaho National Engineering and Environmental Laboratory (INEEL) Over three hundred trial melts, ranging in size from 50 g to more than 10 kg, have been evaluated. The experimental work consisted of (1) evaluating the melting behavior and characteristics, (2) measurement of the viscosity and electrical conductivity of promising melts over their melting range, (3) determining the chemical durability by the PCT and VHT methods of both glassy and partially crystallized iron phosphate wasteforms, (4) determining the solubility limit for chrome oxide in selected iron phosphate melts, (5) examining the feasibility of melting iron phosphate glasses by Cold Crucible Induction melting (CCIM), Hot Crucible Induction Melting (HCIM), and Microwave Melting, (6) and measuring the corrosion of Inconel 690 and 693, potential electrode materials, in an iron phosphate melt. In the past year, the results of the above experimental work have been described in eight technical papers and reports that have been submitted for publication.
Date: June 13, 2003
Creator: Day, Delbert E.; Ray, Chandra S.; Kim, Cheol-Woon & Zhu, Dongmei
Partner: UNT Libraries Government Documents Department

Nuclear data and measurements series.

Description: Results of measurements of neutron scattering from elemental rhenium are presented over two incident-energy regions: (1) 0.3-1.5 MeV, and (2) 4.5-10.0 MeV. The first of these supplements previously-reported work at this Laboratory, and the second consists of information in an entirely new energy range. These experimental results are interpreted in terms of optical-statistical and coupled-channels models, including consideration of dispersive effects, and of scalar and vector potentials. Some basic and applied physical implications of these considerations are discussed. Comparisons are made with other regional and/or global models, and with evaluated nuclear-data files used in applications.
Date: August 13, 2003
Creator: Smith, A. B.
Partner: UNT Libraries Government Documents Department