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0.351 micron Laser Beam propagation in High-temperature Plasmas
A study of the laser-plasma interaction processes have been performed in plasmas that are created to emulate the plasma conditions in indirect drive inertial confinement fusion targets. The plasma emulator is produced in a gas-filled hohlraum; a blue 351-nm laser beam propagates along the axis of the hohlraum interacting with a high-temperature (T{sub e} = 3.5 keV), dense (n{sub e} = 5 x 10{sup 20}cm{sup -3}), long-scale length (L {approx} 2 mm) plasma. Experiments at these conditions have demonstrated that the interaction beam produces less than 1% total backscatter resulting in transmission greater than 90% for laser intensities less than I < 2 x 10{sup 15} W-cm{sup -2}. The bulk plasma conditions have been independently characterized using Thomson scattering where the peak electron temperatures are shown to scale with the hohlraum heater beam energy in the range from 2 keV to 3.5 keV. This feature has allowed us to determine the thresholds for both backscattering and filamentation instabilities; the former measured with absolutely calibrated full aperture backscatter and near backscatter diagnostics and the latter with a transmitted beam diagnostics. A plasma length scaling is also investigated extending our measurements to 4-mm long high-temperature plasmas. At intensities I < 5 x …
Date:
December 10, 2007
Creator:
Froula, D.; Divol, L.; Meezan, N.; Ross, J.; Berger, R. L.; Michel, P. et al.
System:
The UNT Digital Library
3-D sedimentological and geophysical studies of clastic reservoir analogs: Facies architecture, reservoir properties, and flow behavior within delta front facies elements of the Cretaceous Wall Creek Member, Frontier Formation, Wyoming
This project examined the internal architecture of delta front sandstones at two locations within the Turonian-age Wall Creek Member of the Frontier Formation, in Wyoming. The project involved traditional outcrop field work integrated with core-data, and 2D and 3D ground penetrating radar (GPR) imaging from behind the outcrops. The fluid-flow engineering work, handled through a collaborative grant given to PI Chris White at LSU, focused on effects on fluid flow of late-stage calcite cement nodules in 3D. In addition to the extensive field component, the work funded 2 PhD students (Gani and Lee) and resulted in publication of 10 technical papers, 17 abstracts, and 4 internal field guides. PI Bhattacharya also funded an additional 3 PhD students that worked on the Wall Creek sandstone funded separately through an industrial consortium, two of whom graduated in the fall 2006 ((Sadeque and Vakarelov). These additional funds provided significant leverage to expand the work to include a regional stratigraphic synthesis of the Wall Creek Member of the Frontier Formation, in addition to the reservoir-scale studies that DOE directly funded. Awards given to PI Bhattacharya included the prestigious AAPG Distinguished Lecture Award, which involved a tour of about 25 Universities and Geological Societies in …
Date:
February 16, 2007
Creator:
Bhattacharya, Janok P. & McMechan, George A.
System:
The UNT Digital Library
3-D sedimentological and geophysical studies of clastic reservoir analogs: Facies architecture, reservoir properties, and flow behavior within delta front facies elements of the Cretaceous Wall Creek Member, Frontier Formation, Wyoming
None
Date:
February 16, 2007
Creator:
Bhattacharya, Janok P. & McMechan, George A.
System:
The UNT Digital Library
4-D High-Resolution Seismic Reflection Monitoring of Miscible CO2 Injected into a Carbonate Reservoir
The objective of this research project was to acquire, process, and interpret multiple high-resolution 3-D compressional wave and 2-D, 2-C shear wave seismic data in the hopes of observing changes in fluid characteristics in an oil field before, during, and after the miscible carbon dioxide (CO{sub 2}) flood that began around December 1, 2003, as part of the DOE-sponsored Class Revisit Project (DOE No.DE-AC26-00BC15124). Unique and key to this imaging activity is the high-resolution nature of the seismic data, minimal deployment design, and the temporal sampling throughout the flood. The 900-m-deep test reservoir is located in central Kansas oomoldic limestones of the Lansing-Kansas City Group, deposited on a shallow marine shelf in Pennsylvanian time. After 30 months of seismic monitoring, one baseline and eight monitor surveys clearly detected changes that appear consistent with movement of CO{sub 2} as modeled with fluid simulators and observed in production data. Attribute analysis was a very useful tool in enhancing changes in seismic character present, but difficult to interpret on time amplitude slices. Lessons learned from and tools/techniques developed during this project will allow high-resolution seismic imaging to be routinely applied to many CO{sub 2} injection programs in a large percentage of shallow carbonate …
Date:
June 30, 2007
Creator:
Miller, Richard D.; Raef, Abdelmoneam E.; Byrnes, Alan P. & Harrison, William E.
System:
The UNT Digital Library
04-ERD-052-Final Report
Generating the sequence of the human genome represents a colossal achievement for science and mankind. The technical use for the human genome project information holds great promise to cure disease, prevent bioterror threats, as well as to learn about human origins. Yet converting the sequence data into biological meaningful information has not been immediately obvious, and we are still in the preliminary stages of understanding how the genome is organized, what are the functional building blocks and how do these sequences mediate complex biological processes. The overarching goal of this program was to develop novel methods and high throughput strategies for determining the functions of ''anonymous'' human genes that are evolutionarily deeply conserved in other vertebrates. We coupled analytical tool development and computational predictions regarding gene function with novel high throughput experimental strategies and tested biological predictions in the laboratory. The tools required for comparative genomic data-mining are fundamentally the same whether they are applied to scientific studies of related microbes or the search for functions of novel human genes. For this reason the tools, conceptual framework and the coupled informatics-experimental biology paradigm we developed in this LDRD has many potential scientific applications relevant to LLNL multidisciplinary research in bio-defense, …
Date:
February 26, 2007
Creator:
Loots, G. G.; Ovcharenko, I.; Collette, N.; Babu, P.; Chang, J.; Stubbs, L. et al.
System:
The UNT Digital Library
16,000-rpm Interior Permanent Magnet Reluctance Machine with Brushless Field Excitation
The reluctance interior permanent magnet (RIPM) motor is currently used by many leading auto manufacturers for hybrid vehicles. The power density for this type of motor is high compared with that of induction motors and switched reluctance motors. The primary drawback of the RIPM motor is the permanent magnet (PM) because during high-speed operation, the fixed PM produces a huge back electromotive force (emf) that must be reduced before the current will pass through the stator windings. This reduction in back-emf is accomplished with a significant direct-axis (d-axis) demagnetization current, which opposes the PM's flux to reduce the flux seen by the stator wires. This may lower the power factor and efficiency of the motor and raise the requirement on the alternate current (ac) power supply; consequently, bigger inverter switching components, thicker motor winding conductors, and heavier cables are required. The direct current (dc) link capacitor is also affected when it must accommodate heavier harmonic currents. It is commonly agreed that, for synchronous machines, the power factor can be optimized by varying the field excitation to minimize the current. The field produced by the PM is fixed and cannot be adjusted. What can be adjusted is reactive current to the …
Date:
October 31, 2007
Creator:
Hsu, J. S.; Burress, T. A.; Lee, S. T.; Wiles, R. H.; Coomer, C. L.; McKeever, J.W. et al.
System:
The UNT Digital Library
16,000-RPM Interior Permanent Magnet Reluctance Machine with Brushless Field Excitation
Introduction to Brushless field excitation(BFE) to overcome the drawbacks of Reluctance Interior Permanent Magnet (RIPM).
Date:
October 1, 2007
Creator:
Hsu, John S.; Burress, Timothy A.; Lee, Seong T.; Wiles, Randy H.; Coomer, Chester; McKeever, John W. et al.
System:
The UNT Digital Library
100 Area D4 Project Building Completion Report May 2006 - June 2007
This report documents the decontamination and decommissioning (D&D) and the demolition of the 153-N, 1515-N, 1516-N, 1517-N, 1518-N, 1519-N, 1331-N, 1332-N, and 181-NC facilities in the 100 Area of the Hanford Site. The D&D and demolition of these facilities included characterization, engineering, removal of hazardous and radiologically contaminated materials, equipment removal, utility disconnection, deactivation, decontamination, demolition of the structure, and removal of the remaining slabs.
Date:
July 25, 2007
Creator:
Ison, E. G.
System:
The UNT Digital Library
222-S LABORATORY FUME HOOD TESTING STUDY
The 222-S Laboratory contains 155 active fume hoods that are used to support analytical work with radioactive and/or toxic materials. The performance of a fume hood was brought into question after employees detected odors in the work area while mixing chemicals within the subject fume hood. Following the event, testing of the fume hood was conducted to assess the performance of the fume hood. Based on observations from the testing, it was deemed appropriate to conduct performance evaluations of other fume hoods within the laboratory.
Date:
March 26, 2007
Creator:
Ruelas, B. H.
System:
The UNT Digital Library
300 Area Building Retention Evaluation Mitigation Plan
Evaluate the long-term retention of several facilities associated with the PNNL Capability Replacement Laboratory and other Hanfor mission needs. WCH prepared a mitigation plan for three scenarios with different release dates for specific buildings. The evaluations present a proposed plan for providing utility services to retained facilities in support of a long-term (+20 year) lifespan in addition to temporary services to buildings with specified delayed release dates.
Date:
July 3, 2007
Creator:
McBride, D. J.
System:
The UNT Digital Library
300 Area D4 Project 4th Quarter Fiscal Year 2006 Building Completion Report
This report documents the deactivation, decontamination, decommissioning, and demolition (D4) of nine buildings in the 300 Area of the Hanford Site. The D4 of these facilities included characterization, engineering, removal of hazardous and radiologically contaminated materials, equipment removal, utility disconnection, deactivation, decontamination, demolition of the structure, and stabilization or removal of the remaining slab and foundation, as appropriate.
Date:
January 30, 2007
Creator:
Smith, D. S.
System:
The UNT Digital Library
300-Area VOC Program Slug Test Characterization Results for Selected Test/Depth Intervals Conducted During the Drilling of Well 399-3-21
This report presents brief test descriptions and analysis results for multiple, stress-level slug tests that were performed at selected test/depth intervals within well 399-3-21 as part of the 300-Area volatile organic compound characterization program. The test intervals were characterized as the borehole was advanced to its final drill depth (45.7 m) and before its completion as a monitor-well facility. The primary objective of the slug tests was to provide information pertaining to the vertical distribution of hydraulic conductivity with depth at this location and to select the final screen-depth interval for the monitor well. This type of characterization information is important for predicting/simulating contaminant migration (i.e., numerical flow/transport modeling) and designing proper monitor-well strategies within this area.
Date:
July 19, 2007
Creator:
Spane, Frank A.
System:
The UNT Digital Library
527 Political Organizations: Legislation in the 109th Congress
The 109th Congress examined the role of groups organized under section 527 of the Internal Revenue Code(IRC) that are involved in federal elections but are operating under the requirements and restrictions of federal election law.
Date:
January 24, 2007
Creator:
Cantor, Joseph E.
System:
The UNT Digital Library
900-24 Mock Tensile Tests
None
Date:
December 10, 2007
Creator:
Cunningham, B J & Gagliardi, F J
System:
The UNT Digital Library
S. 1893/H.R. 976: The Children’s Health Insurance Program Reauthorization Act of 2007
This report tracks the Children's Health Reauthorization of Act of 2007 in both the Senate and the House, while also providing a summary of the bill. The report lists each title of the bill. what they do, and their implications. The report also examines costs by analyzing the immediate outlay and future outlay, starting at 28.6 billion and potentially increasing to 35.2 billion over time.
Date:
August 14, 2007
Creator:
Baumrucker, Evelyne; Fernandez, Bernadette; Grady, April; Herz, Elicia; Peterson, Chris & Rimkunas, Richard
System:
The UNT Digital Library
1980 ICF Annual Report Excerpts
None
Date:
June 15, 2007
Creator:
Lindl, J D
System:
The UNT Digital Library
1991-2005 National Solar Radiation Database
This fact sheet provides an overview of the purpose, benefit, and features of the newly updated National Solar Radiation Database.
Date:
May 1, 2007
Creator:
Wilcox, S.
System:
The UNT Digital Library
2003 Brookhaven National Laboratory Annual Illness and Injury Surveillance Report, Revised September 2007
Annual Illness and Injury Surveillance Program report for 2003 for Brookhaven National Lab. The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The IISP monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date:
October 2, 2007
Creator:
United States. Department of Energy. Office of Illness and Injury Prevention Programs.
System:
The UNT Digital Library
2003 East Tennessee Technology Park Annual Illness and Injury Surveillance Report
Annual Illness and Injury Surveillance Program report for 2003 for the East Tennessee Technology Park (K-25).The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date:
May 23, 2007
Creator:
United States. Department of Energy. Office of Illness and Injury Prevention Programs.
System:
The UNT Digital Library
2003 Fernald Environmental Management Project Annual Illness and Injury Surveillance Report, Revised September 2007
Annual Illness and Injury Surveillance Program report for 2003 for the Fernald Environmental Management Project. The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The IISP monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date:
October 4, 2007
Creator:
United States. Department of Energy. Office of Illness and Injury Prevention Programs.
System:
The UNT Digital Library
2003 Hanford Site Annual Illness and Injury Surveillance Report, Revised October 2007
Annual Illness and Injury Surveillance Program report for the Hanford site. The IISP monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers. The prpogram is part of DOE's commitment to assuring the health and safety of its workers and includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers.
Date:
October 24, 2007
Creator:
United States. Department of Energy. Office of Illness and Injury Prevention Programs.
System:
The UNT Digital Library
2003 Idaho National Engineering and Environmental Laboratory Annual Illness and Injury Surveillance Report
Annual Illness and Injury Surveillance Program report for 2003 for Idaho National Lab. The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date:
May 23, 2007
Creator:
United States. Department of Energy. Office of Illness and Injury Prevention Programs.
System:
The UNT Digital Library
2003 Kansas City Plant Annual Illness and Injury Surveillance Report, Revised September 2007
Annual Illness and Injury Surveillance Program report for 2003 for the Kansas City Plant. The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The IISP monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date:
October 4, 2007
Creator:
United States. Department of Energy. Office of Illness and Injury Prevention Programs.
System:
The UNT Digital Library
2003 Lawrence Livermore National Laboratory Annual Illness and Injury Surveillance Report
Annual Illness and Injury Surveillance Program report for 2003 for Lawrence Livermore National Lab. The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The IISP monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date:
May 23, 2007
Creator:
United States. Department of Energy. Office of Illness and Injury Prevention Programs.
System:
The UNT Digital Library