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A 3D Particle Simulation Code for Heavy Ion Fusion Accelerator Studies

Description: We describe WARP, a new particle-in-cell code being developed and optimized for ion beam studies in true geometry. We seek to model transport around bends, axial compression with strong focusing, multiple beamlet interaction, and other inherently 3d processes that affect emittance growth. Constraints imposed by memory and running time are severe. Thus, we employ only two 3d field arrays ({rho} and {phi}), and difference {phi} directly on each particle to get E, rather than interpolating E from … more
Date: June 8, 1990
Creator: Friedman, A.; Bangerter, R. O.; Callahan, D. A.; Grote, D. P.; Langdon, A. B. & Haber, I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Adiabatic supernova expansion into the circumstellar medium

Description: We perform one dimensional numerical simulations with a Lagrangian hydrodynamics code of the adiabatic expansion of a supernova into the surrounding medium. The early expansion follows Chevalier's analytic self-similar solution until the reverse shock reaches the ejecta core. We follow the expansion as it evolves towards the adiabatic blast wave phase. Some memory of the earlier phases of expansion is retained in the interior even when the outer regions expand as a blast wave. We find the resul… more
Date: June 8, 1987
Creator: Band, D.L. & Liang, E.P.
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Partner: UNT Libraries Government Documents Department
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Age-dependent radiosensitivity of mouse oocytes

Description: It has been shown that there are three distinct phases of radiosensitivity in oocytes of prepubertal mice: a period of rapidly increasing sensitivity between 0 and 4 days of age; a period of consistent, high sensitivity between 5 and 18 days of age; and a period of decreasing sensitivity from 19 to at least 21 days of age. Two distinct phases have been demonstrated for the rate of population decline of the oocytes of primary follicles: an initial period of rapid loss from 0 to 4 days of age; an… more
Date: June 8, 1976
Creator: Koehler, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Air Monitoring Leads to Discovery of New Contamination at Radioactive Waste Disposal Site (Area G) at LANL

Description: Air monitoring at Area G, the low-level radioactive waste disposal area at Los Alamos National Laboratory, revealed increased air concentrations of {sup 239}Pu and {sup 241}Am at one location along the north boundary. This air monitoring location is a couple of meters north of a dirt road used to access the easternmost part of Area G. Air concentrations of {sup 238}Pu were essentially unaffected, which was puzzling because the {sup 238}Pu and {sup 239}Pu are present in the local, slightly conta… more
Date: June 8, 1999
Creator: Kraig, David H. & Conrad, Ronald C.
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Partner: UNT Libraries Government Documents Department
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Amplifying Real Estate Value through Energy&WaterManagement: From ESCO to 'Energy Services Partner'

Description: The energy service company (ESCO) business model could become significantly more effective by integrating the energy-efficiency purveyor and their capital into the underlying building ownership and operation partnership, rather than the current model in which the ESCO remains an outsider with higher transaction costs and limited interest and participation in the value created by the cost savings. Resource conservation advocates rarely use the language of real estate to articulate the cost effec… more
Date: June 8, 2004
Creator: Mills, Evan
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Partner: UNT Libraries Government Documents Department
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Analysis of costs and benefits for eight powerplant productivity improvement projects. Project 1, Task 3. Final report

Description: In 1976, DOE (FEA) sponsored the development of a systematic methodology for the identification and analysis of candidate projects which a utility might undertake to improve baseload unit reliability. This methodology also enabled the user to estimate a project's effect on the future performance of the unit. A project was sponsored in Illinois to demonstrate the methodology and to encourage increased power plant productivity in the state. A total of 8 improvement projects were conducted and ana… more
Date: June 8, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of oil-bearing Cretaceous sandstone hydrocarbon reservoirs, exclusive of the Dakota Sandstone, on the Jicarilla Apache Indian Reservation, New Mexico

Description: This is the Phase One contract report to the United States Department of Energy, United State Geological Survey and the Jicarilla Apache Indian Tribe on the project entitled ``Outcrop Analysis of the Cretaceous Mesaverde Group: Jicarilla Apache Reservation, New Mexico.'' Field work for this project was conducted during July and August 1998, at which time fourteen measured sections were described and correlated on or adjacent to Jicarilla Apache Reservation lands. A fifteen section, described ea… more
Date: June 8, 2000
Creator: Ridgley, Jennie & Wright Dunbar, Robyn
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Annealing to Mitigate Pitting in Electropolished Niobium Coupons and SRF Cavities

Description: Ongoing studies at Fermilab investigate whether dislocations and other factors instigate pitting during cavity electropolishing (EP), despite careful processing controls and the inherent leveling mechanism of EP itself. Here, cold-worked niobium coupons, which exhibited increased tendencies for pitting in our past study, were annealed in a high vacuum furnace and subsequently processed by EP. Laser confocal scanning microscopy and special defect counting algorithms were used to assess the popul… more
Date: June 8, 2011
Creator: Cooley, L. D.; Hahn, E.; Hicks, D.; Romanenko, A.; Schuessler, R. & Thompson, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Answers to questions of the Advisory Committee on Reactor Safeguards relative to the need for retention of government land

Description: This report discusses a meeting scheduled with a Subcommittee of the Advisory Committee on Reactor Safeguards to review the future need for retention of government land on the Wahluke Slope. A number of questions were asked by the Washington AEC Division of Production as a basis for the discussions. This interim report provides answers to several of the questions.
Date: June 8, 1964
Creator: Junkins, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Antenna-coupled bolometer arrays using transition-edgesensors

Description: We describe the development of an antenna-coupled bolometer array for use in a Cosmic Microwave Background polarization experiment. Prototype single pixels using double-slot dipole antennas and integrated microstrip band defining filters have been built and tested. Preliminary results of optical testing and simulations are presented. A bolometer array design based on this pixel will also be shown and future plans for application of the technology will be discussed.
Date: June 8, 2004
Creator: Myers, Michael J.; Ade, Peter; Engargiola, Greg; Holzapfel,William; Lee,Adrian T.; O'Brient, Roger et al.
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Partner: UNT Libraries Government Documents Department
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Application of Advanced Reservoir Characterization, Simulation, and Production Optimization Strategies to Maximize Recovery in Slope and Basin Clastic Reservoirs, West Texas (Delaware Basin)

Description: The objective of this Class III project is to demonstrate that detailed reservoir characterization of slope and basin clastic reservoirs in sandstones of the Delaware Mountain Group in the Delaware Basin of West Texas and New Mexico is a cost-effective way to recover a higher percentage of the original oil in place through geologically based field development. This year the project focused on reservoir characterization of the East Ford unit, a representative Delaware Mountain Group field that p… more
Date: June 8, 1999
Creator: Dutton, S. P.; Flanders, W. A.; Guzman, J. I. & Zirczy, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Argonne National Laboratory Expedited Site Characterization: First International Symposium on Integrated Technical Approaches to Site Characterization - Proceedings Volume

Description: Laboratory applications for the analysis of PCBS (polychlorinated biphenyls) in environmental matrices such as soil/sediment/sludge and oil/waste oil were evaluated for potential reduction in waste, source reduction, and alternative techniques for final determination. As a consequence, new procedures were studied for solvent substitution, miniaturization of extraction and cleanups, minimization of reagent consumption, reduction of cost per analysis, and reduction of time. These new procedures p… more
Date: June 8, 1998
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Partner: UNT Libraries Government Documents Department
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Assessment of uranium, plutonium, and Np-237 content of high level liquid waste on E-Area vault package limits

Description: The purpose of this report is to assess the waste tank inventory of uranium, plutonium and Np-237 to determine potential impacts on waste certification for the E-Area vaults (EAV). Procedure WAC 3.10, Rev. 1, of the 1S Manual imposes administrative control limits for radioactive material in waste packages sent to the EAV. Waste tank supernate contains trace amounts of U, Pu, and Np. Thus any material contaminated with supernate and placed in a B-25 waste package may contain one or more of these… more
Date: June 8, 1994
Creator: Clemmons, J. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Biorefinery and Carbon Cycling Research Project

Description: In this project we focused on several aspects of technology development that advances the formation of an integrated biorefinery. These focus areas include: [ 1] pretreatment of biomass to enhance quality of products from thermochemical conversion; [2] characterization of and development of coproduct uses; [3] advancement in fermentation of lignocellulosics and particularly C5 and C6 sugars simultaneously, and [ 4] development of algal biomass as a potential substrate for the biorefinery. These… more
Date: June 8, 2012
Creator: Das, K. C., Adams; Thomas, T; Eiteman, Mark A; Kastner, James R; Mani, Sudhagar & Adolphson, Ryan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Boundary conditions for fluid equations with flux sources and sinks

Description: I use a piece-wise linear approximation to the directed flux expressions for a flowing Maxwellian fluid to write down boundary conditions for the fluid description of a multicomponent plasma. These boundary conditions are sufficiently robust to treat particle reflection, surface reactions leading to secondary production, diffusion, and field-induced drift of charged species.
Date: June 8, 1994
Creator: Riley, M. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Brillouin scatter in a hydrodynamic simulation

Description: A numerical method for modeling stimulated Brillouin scatter (SBS) in a hydrodynamic simulation code is discussed. Preliminary results using the model show that scattering is reduced as shorter wavelengths are used and for spherical symmetry that ion heating by SBS is not significant since the ions cool by expansion.
Date: June 8, 1979
Creator: Harte, J.; Estabrook, K. & Bailey, D.
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Partner: UNT Libraries Government Documents Department
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CERTS Microgrid Laboratory Test Bed

Description: The objective of the CERTS Microgrid Test Bed project was to enhance the ease of integrating energy sources into a microgrid. The project accomplished this objective by developing and demonstrating three advanced techniques, collectively referred to as the CERTS Microgrid concept, that significantly reduce the level of custom field engineering needed to operate microgrids consisting of generating sources less than 100kW. The techniques comprising the CERTS Microgrid concept are: 1 a method for … more
Date: June 8, 2010
Creator: ETO, J.; LASSETER, R.; SCHENKMAN, B.; STEVENS, J.; KLAPP, D.; VOLKOMMER, H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CERTS Microgrid Laboratory Test Bed

Description: CERTS Microgrid concept captures the emerging potential of distributed generation using a system approach. CERTS views generation and associated loads as a subsystem or a 'microgrid'. The sources can operate in parallel to the grid or can operate in island, providing UPS services. The system can disconnect from the utility during large events (i.e. faults, voltage collapses), but may also intentionally disconnect when the quality of power from the grid falls below certain standards. CERTS Micro… more
Date: June 8, 2010
Creator: Lasseter, R. H.; Eto, J. H.; Schenkman, B.; Stevens, J.; Volkmmer, H.; Klapp, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CESIUM REMOVAL FROM TANKS 241-AN-103 & 241-SX-105 & 241-AZ-101/102 COMPOSITE FOR TESTING IN BENCH SCALE STEAM REFORMER

Description: This report documents the preparation of three actual Hanford tank waste samples for shipment to the Savannah River National Laboratory (SRNL). Two of the samples were dissolved saltcakes from tank 241-AN-103 (hereafter AN-103) and tank 241-SX-105 (hereafter SX-105); one sample was a supernate composite from tanks 241-AZ-101 and 241-AZ-102 (hereafter AZ-101/102). The preparation of the samples was executed following the test plans LAB-PLAN-10-00006, Test Plan for the Preparation of Samples from… more
Date: June 8, 2011
Creator: JB, DUNCAN & HJ, HUBER
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization and device performance of (AgCu)(InGa)Se2 absorber layers

Description: The study of (AgCu)(InGa)Se2 absorber layers is of interest in that Ag-chalcopyrites exhibit both wider bandgaps and lower melting points than their Cu counterparts. (AgCu)(InGa)Se2 absorber layers were deposited over the composition range 0 < Ag/(Ag+Cu) < 1 and 0.3 < Ga/(In+Ga) < 1.0 using a variety of elemental co-evaporation processes. Films were found to be singlephase over the entire composition range, in contrast to prior studies. Devices with Ga content 0.3 < Ga/(In+Ga) <0.5 tolerated Ag… more
Date: June 8, 2009
Creator: Hanket, Gregory; Boyle, Jonathan H. & Shafarman, William N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Characterization of Direct Push Vadose Zone Sediments from the T and TY Waste Management Areas

Description: This report contains all the geochemical and selected physical characterization data collected on vadose zone sediment recovered from 5 direct push characterization holes emplaced to investigate vadose zone contamination associated with leaks from tanks 241-TY-105 (UPR-200-W-152) and 241-TY-106 (UPR-200-W-153). Tank 241-TY-105 is estimated to have leaked 35,000 gal of tributyl phosphate (TBP) waste from the uranium recovery process to the vadose zone in 1960. Tank 241-TY-106 is estimated to hav… more
Date: June 8, 2007
Creator: Brown, Christopher F.; Valenta, Michelle M.; Serne, R. Jeffrey; Bjornstad, Bruce N.; Lanigan, David C.; Iovin, Cristian et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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