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2-D Reflectometer Modeling for Optimizing the ITER Low-field Side Reflectometer System
The response of a low-field side reflectometer system for ITER is simulated with a 2?D reflectometer code using a realistic plasma equilibrium. It is found that the reflected beam will often miss its launch point by as much as 40 cm and that a vertical array of receiving antennas is essential in order to observe a reflection on the low-field side of ITER.
Date:
September 2, 2005
Creator:
Kramer, G. J.; Nazikian, R.; Valeo, E. J.; Budny, R. V.; Kessel, C. & Johnson, D.
Object Type:
Report
System:
The UNT Digital Library
3-D Simulations of Plasma Wakefield Acceleration with Non-Idealized Plasmas and Beams
3-D Particle-in-cell OSIRIS simulations of the current E-162 Plasma Wakefield Accelerator Experiment are presented in which a number of non-ideal conditions are modeled simultaneously. These include tilts on the beam in both planes, asymmetric beam emittance, beam energy spread and plasma inhomogeneities both longitudinally and transverse to the beam axis. The relative importance of the non-ideal conditions is discussed and a worst case estimate of the effect of these on energy gain is obtained. The simulation output is then propagated through the downstream optics, drift spaces and apertures leading to the experimental diagnostics to provide insight into the differences between actual beam conditions and what is measured. The work represents a milestone in the level of detail of simulation comparisons to plasma experiments.
Date:
September 27, 2005
Creator:
Deng, S.; Katsouleas, T.; Lee, S.; Muggli, P.; Mori, W. B.; Hemker, R. et al.
Object Type:
Article
System:
The UNT Digital Library
04/28/05 Cobra Data: JSF Recommendation
103-06A-NMC19 - DoD Input - Navy/MC - Naval Air Station Pensacola - Florida - BRAC Commission - FY 2005.
Date:
September 1, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
04/28/2005 COBRA Report: JSF Initial Test Site
DoD Input - 103-06 - General - Joint Strike Fighter Data - Cobra Report - BRAC Commission - FY 2005.
Date:
September 1, 2005
Creator:
United States. Department of Defense.
Object Type:
Book
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 is to acquire, process, and interpret multiple high-resolution 3-D compressional wave and 2-D, 2-C shear wave seismic data to observe 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 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 18 months of seismic monitoring, one baseline and six monitor surveys clearly imaged changes that appear consistent with movement of CO{sub 2} as modeled with fluid simulators.
Date:
September 1, 2005
Creator:
Miller, Richard D.; Raef, Abdelmoneam E.; Byrnes, Alan P. & Harrison, William E.
Object Type:
Report
System:
The UNT Digital Library
A 90-GHz Photoinjector
Photocathode rf guns depend on mode locked laser systems to produce an electron beam at a given phase of the rf. In general, the laser pulse is less than {sigma}{sub z} = 10{sup o} of rf phase in length and the required stability is on the order of {Delta}{phi} = 1{sup o}. At 90 GHz (W-band), these requirements correspond to {sigma}{sub z} = 333 fsec and {Delta}{phi} = 33 fsec. Laser system with pulse lengths in the fsec regime are commercially available, the timing stability is a major concern. We propose a multi-cell W-band photoinjector that does not require a mode locked laser system. Thereby eliminating the stability requirements at W-band. The laser pulse is allowed to be many rf periods long. In principle, the photoinjector can now be considered as a thermionic rf gun. Instead of using an alpha magnet to compress the electron bunch, which would have a detrimental effect on the transverse phase space quality due to longitudinal phase space mixing, we propose to use long pulse laser system and a pair of undulators to produce a low emittance, high current, ultra-short electron bunch for beam dynamics experiments in the 90 GHz regime.
Date:
September 12, 2005
Creator:
Palmer, D. T.; Hogan, M. J.; Ferrario, M. & Serafini, L.
Object Type:
Article
System:
The UNT Digital Library
The 100,000 amp dc power supply for a staged hadron collider super ferric magnet
A 1.5 volt 100,000 amp DC switcher power supply was developed for testing a superferric magnet string at FNAL. This supply was used during testing as both the ramping supply and holding supply powering a single magnet load with a total load resistance of 0.7{micro} Ohms. The supply consists of ten paralleled switcher cells, powered by a 400 volt/600 Amp DC power supply. Each cell consists of an IGBT H-bridge driving a step-down transformer at a switching frequency of 2 kHz. The transformer has an effective turns ratio of 224:1. The secondary consists of 32 parallel single-turn full wave rectifier windings. The rectification is done with 64 Shottky diodes. Each cell is rated at 1.5 volts/10,000 amps. During this test each cell was operated as a constant power source without load current or field feedback. This paper will describe the design of the switcher cell and control system used during testing. We will also describe the next level of improvements to the current feedback system to improve the ramp control.
Date:
September 1, 2005
Creator:
Hays, Steven L.; Claypool, Bradley & Foster, G. William
Object Type:
Article
System:
The UNT Digital Library
The 100 kA current leads for a superconducting transmission line magnet
A pair of current leads to power a transmission line magnet cooled at liquid helium temperature has been designed and developed at Fermilab. The leads designed to carry 100 kA dc current. Each lead consists of a warm end, heat exchange section and a cold end. The warm end is a half moon plate and cylinder brazed together. The heat exchange section is made of 202 copper rods arranged in a staggered pattern. Each rod is 6.35 mm in diameter and 1650 mm in length. The rods were soft-soldered into 12.7 mm deep holes at both warm and cold ends. The helium gas flow, guided by anodized aluminum baffles along the lead length, allows for a relatively high heat transfer coefficient between the current carrying rods and cooling helium gas. As a result the current leads were successfully tested with a ramping current of up to 104 kA. The current lead design, assembly work and the test results are presented.
Date:
September 1, 2005
Creator:
Huang, Yuenian; Foster, William; Kim, Seog-Whan; Mazur, Peter; Oleck, Andrew; Piekarz, Henryk et al.
Object Type:
Article
System:
The UNT Digital Library
S. 147/H.R. 309: Process for Federal Recognition of a Native Hawaiian Governmental Entity
S. 147/H.R. 309, companion bills introduced in the 109th Congress, represent an effort to accord to Native Hawaiians a means of forming a governmental entity that could enter into government-to-government relations with the United States. This report describes the provisions of the reported version of S. 147; outlines some federal statutes and recent cases which might be relevant to the issue of federal recognition of a Native Hawaiian entity; and recounts some legal arguments that have been presented in the debate on this legislation. It includes a brief outline of the provisions of a substitute amendment expected to be offered in lieu of the reported version of S. 147, when Senate debate, which was interrupted by the filing of a cloture motion on July 29, resumes.
Date:
September 27, 2005
Creator:
Murphy, M. Maureen
Object Type:
Report
System:
The UNT Digital Library
040716 - 05 - JOINT ACTION SCENARIO TEAM Charter 20 Feb 04
DISREGARD RESTRICTION HEADER AND FOOTER - 040716 - 05 - JOINT ACTION SCENARIO TEAM Charter 20 Feb 04
Date:
September 16, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
061705 BRAC Commission Regional Hearing Book for Portland Oregon
061705 BRAC Commission Regional Hearing Book for Portland Oregon
Date:
September 15, 2005
Creator:
United States. Defense Base Closure and Realignment Commission.
Object Type:
Legal Document
System:
The UNT Digital Library
108th Air Refueling Wing Future Missions Military Value
108th Air Refueling Wing Future Missions Military Value. Community Input from McGuire AFB local area.
Date:
September 6, 2005
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
108th CONGRESS 1st Session H. R. 1588 An Act
108th CONGRESS 1st Session H. R. 1588 An Act
Date:
September 12, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 35, No. 3, Ed. 1 Friday, September 2, 2005
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 2, 2005
Creator:
Waltman, Erin
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 35, No. 4, Ed. 1 Friday, September 16, 2005
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 16, 2005
Creator:
Waltman, Erin
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 35, No. 5, Ed. 1 Friday, September 23, 2005
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 23, 2005
Creator:
Waltman, Erin
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 35, No. 6, Ed. 1 Friday, September 30, 2005
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 30, 2005
Creator:
Waltman, Erin
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[16th Annual Celebración Banquet flier]
A document advertising the 16th Annual Celebración Banquet hosted by the UNT Multicultural Center. It lists the details for the event including the speaker, Arnold Velez, the location, date, and time, and ticket costs.
Date:
September 13, 2005
Creator:
University of North Texas. Multicultural Center.
Object Type:
Text
System:
The UNT Digital Library
1K RESERVOIR: EB WELDER, CE69412 REQUALIFICATION
The EB Welder was qualified to produce the 1K retainer weld in February 2001. Since that time, several parts were replaced and metallography results from a review indicated that the welder was not operating properly. After testing the EB Welder, it was requalified to produce the 1K retainer weld.
Date:
September 7, 2005
Creator:
Schell, J. H.
Object Type:
Report
System:
The UNT Digital Library
2004 Base Structure Report
Disregard Restriction of Header and Footer: 2004 Base Structure Report
Date:
September 22, 2005
Creator:
United States. Department of Defense.
Object Type:
Book
System:
The UNT Digital Library
2004 Electron Donor Acceptor Interactions Gordon Conference - August 8-13, 2004
The 2004 Gordon Conference on Donor/Acceptor Interactions will take place at Salve Regina University in Newport, Rhode Island on August 8-13, 2004. The conference will be devoted to the consequences of charge interaction and charge motion in molecular and materials systems.
Date:
September 14, 2005
Creator:
GUILFORD JONES BOSTON UNIVERSITY PHOTONICS CENTER 8 ST. MARY'S ST BOSTON, MA 02215
Object Type:
Article
System:
The UNT Digital Library
2004 Environmental Report
The Lawrence Livermore National Laboratory (LLNL) annual Environmental Report, prepared for the Department of Energy (DOE) and made available to the public, presents summary environmental data that characterizes site environmental management performance, summarizes environmental occurrences and responses reported during the calendar year, confirms compliance with environmental standards and requirements, and highlights significant programs and efforts. By explaining the results of effluent and environmental monitoring, mentioning environmental performance indicators and performance measure programs, and assessing the impact of Laboratory operations on the environment and the public, the report also demonstrates LLNL's continuing commitment to minimize any potentially adverse impact of its operations. The combination of environmental and effluent monitoring, source characterization, and dose assessment showed that radiological doses to the public caused by LLNL operations in 2004 were less than 0.26% of regulatory standards and more than 11,000 times smaller than dose from natural background. Analytical results and evaluations generally showed continuing low levels of most contaminants; remediation efforts further reduced the concentrations of contaminants of concern in groundwater and soil vapor. In addition, LLNL's extensive environmental compliance activities related to water, air, endangered species, waste, wastewater, and waste reduction controlled or reduced LLNL's effects on the environment. LLNL's environmental program …
Date:
September 28, 2005
Creator:
Althouse, P E; Bertoldo, N. A.; Brown, R. A.; Campbell, C. B.; Clark, L. M.; Gallegos, G. M. et al.
Object Type:
Report
System:
The UNT Digital Library
2004 Inorganic Chemistry Gordon Research Conference - July 18-23, 2004
The Gordon Research Conference (GRC) on 2004 Inorganic Chemistry Gordon Research Conference - July 18-23, 2004 was held at Salve Regina College, July 18-23, 2004. The Conference was well-attended with 110 participants (attendees list attached). The attendees represented the spectrum of endeavor in this field coming from academia, industry, and government laboratories, both U.S. and foreign scientists, senior researchers, young investigators, and students. In designing the formal speakers program, emphasis was placed on current unpublished research and discussion of the future target areas in this field. There was a conscious effort to stimulate lively discussion about the key issues in the field today. Time for formal presentations was limited in the interest of group discussions. In order that more scientists could communicate their most recent results, poster presentation time was scheduled. Attached is a copy of the formal schedule and speaker program and the poster program. In addition to these formal interactions, 'free time' was scheduled to allow informal discussions. Such discussions are fostering new collaborations and joint efforts in the field.
Date:
September 16, 2005
Creator:
Clark, David
Object Type:
Article
System:
The UNT Digital Library
2004 Molecular Basis of Microbial One-Carbon Metabolism Gordon Conference - August 1-6, 2004
The Gordon Research Conference (GRC) on 2004 Molecular Basis of Microbial One-Carbon Metabolism Gordon Conference - August 1-6, 2004 was held at Mount Holyoke College, South Hadley, MA from August 1-6, 2004. The Conference was well-attended with 117 participants (attendees list attached). The attendees represented the spectrum of endeavor in this field coming from academia, industry, and government laboratories, both U.S. and foreign scientists, senior researchers, young investigators, and students. In designing the formal speakers program, emphasis was placed on current unpublished research and discussion of the future target areas in this field. There was a conscious effort to stimulate lively discussion about the key issues in the field today. Time for formal presentations was limited in the interest of group discussions. In order that more scientists could communicate their most recent results, poster presentation time was scheduled. Attached is a copy of the formal schedule and speaker program and the poster program. In addition to these formal interactions, 'free time' was scheduled to allow informal discussions. Such discussions are fostering new collaborations and joint efforts in the field.
Date:
September 15, 2005
Creator:
Krzycki, Joseph A.
Object Type:
Article
System:
The UNT Digital Library