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2 MV Injector as the Elise Front-End and as an Experimental Facility
We report on progress in the preparation of the 2 MV Injector at LBNL as the front-end of Elise, and as a multi-purpose experimental facility for Heavy Ion Fusion beam dynamics studies. Recent advances on the performance and understanding of the injector are described, and some of the on-going experimental activities are summarized.
Date:
December 7, 1999
Creator:
Yu, S. S.; Eylon, S.; Henestroza, E.; Peters, C.; Reginato, L.; Tauschwitz, A. et al.
Object Type:
Report
System:
The UNT Digital Library
1998 Annual Cathodic Protection Survey Report for the 242-A Evaporator Area
This report is the second annual cathodic protection report for the 242-A evaporator. The report documents and trends annual polarization survey data, rectifier inspection data, and continuity data from 1994 through mid-1999.
Date:
December 7, 1999
Creator:
BOWMAN, T.J.
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Connections to Islamic Movements In Central and South Asia and Southern Russia
After several years of relative peace in Central Asia and southern Russia, Islamic extremist movements have become more active in Russia and in Central and South Asia, threatening stability in the region. Although numerous factors might account for the upsurge in activity, several of these movements appear to have connections to the Islamic fundamentalist Taliban regime in Afghanistan. These linkages raise questions about whether the United States, as part of a broader effort to promote peace and stability in the region, should continue to engage the Taliban regime, or strongly confront it. This report will be updated as events warrant.
Date:
December 7, 1999
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 100, No. 224, Ed. 1 Tuesday, December 7, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 7, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Anticipated Dose Estimate and Historical Documentation and Excel Files for Project W-460
Document provides Excel Spreadsheets which form the basis for estimates of the expected whole body and extremity radiological dose to workers conducting planned plutonium stabilization and packaging operations at Hanford Plutonium Finishing Plant.
Date:
December 7, 1999
Creator:
Lilly, J. T.
Object Type:
Report
System:
The UNT Digital Library
Appropriations for FY2000: VA, HUD, and Independent Agencies
Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the House and Senate Subcommittees on VA, HUD and Independent Agencies Appropriations.
Date:
December 7, 1999
Creator:
Snook, Dennis W.
Object Type:
Report
System:
The UNT Digital Library
Atmospheric Radiation Measurement Program Facilities Newsletter,, November 1999
Monthly newsletter discussing news and activities related to the Atmospheric Radiation Measurement Program, articles about weather and atmospheric phenomena, and other related topics.
Date:
December 7, 1999
Creator:
Atmospheric Radiation Measurement Program (U.S.)
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Bank of America joins DART's New E-Pass
News release concerning the DART E-Pass program and Bank of America's purchase of transit passes for around 7,000 employees.
Date:
December 7, 1999
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 32, Ed. 1 Tuesday, December 7, 1999
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 7, 1999
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Behavior of Excited Argon Atoms in Inductively Driven Plasmas
Laser induced fluorescence has been used to measure the spatial distribution of the two lowest energy argon excited states, 1s{sub 5} and 1s{sub 4}, in inductively driven plasmas containing argon, chlorine and boron trichloride. The behavior of the two energy levels with plasma conditions was significantly different, probably because the 1s{sub 5} level is metastable and the 1s{sub 4} level is radiatively coupled to the ground state but is radiation trapped. The argon data is compared with a global model to identify the relative importance of processes such as electron collisional mixing and radiation trapping. The trends in the data suggest that both processes play a major role in determining the excited state density. At lower rfpower and pressure, excited state spatial distributions in pure argon were peaked in the center of the discharge, with an approximately Gaussian profile. However, for the highest rfpowers and pressures investigated, the spatial distributions tended to flatten in the center of the discharge while the density at the edge of the discharge was unaffected. The spatially resolved excited state density measurements were combined with previous line integrated measurements in the same discharge geometry to derive spatially resolved, absolute densities of the 1s{sub 5} and …
Date:
December 7, 1999
Creator:
Hebner, Gregory A. & Miller, Paul A.
Object Type:
Article
System:
The UNT Digital Library
The Boerne Star (Boerne, Tex.), Vol. 94, No. 98, Ed. 1 Tuesday, December 7, 1999
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
December 7, 1999
Creator:
Keasling, Edna & Fierro, Jennifer
Object Type:
Newspaper
System:
The Portal to Texas History
The Brand (Abilene, Tex.), Vol. 87, No. 9, Ed. 1, Tuesday, December 7, 1999
Weekly student newspaper from Hardin-Simmons University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
December 7, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Characterization of nanostructured zirconia prepared by hydrolysis and reverse micelle synthesis by small-angle neutron and X-ray scattering
Low temperature techniques such as hydrolysis and reverse micelle syntheses provide the opportunity to determine the relationship between the structural properties and preparation conditions of zirconia powders as well as to tailor their physicochemical properties. The authors have performed small-angle neutron and synchrotron X-ray scattering (SANS and SAXS) experiments to study the nucleation and organization of zirconia nanoparticles via different preparation routes. First, the formation of reverse micelles in individual and mixed solutions of (ZrOCl{sub 2}+D{sub 2}O)/AOT/C{sub 6}D{sub 5}CD{sub 3}, and (NH{sub 4}OH+H{sub 2}O)/AOT/C{sub 6}D{sub 5}CD{sub 3} systems at water/AOT molar ratio of 20 was characterized. Second, the aggregation of zirconia gels obtained from the reaction of the reverse micelle solutions after heat treatments was studied. Third, the nanostructure of zirconia powders prepared by the reverse micelle method is compared with the corresponding powders prepared by hydrolysis after different heat treatments.
Date:
December 7, 1999
Creator:
Thiyagarajan, P.; Li, X.; Littrell, K.; Seifert, S.; Csencsits, R. & Loong, C.
Object Type:
Article
System:
The UNT Digital Library
Characterization of Reaction Pathways on the Potential Energy Surfaces for H + SO2 and HS + O2
Article on the characterization of reaction pathways on the potential energy surfaces for H + SO2 and HS + O2.
Date:
December 7, 1999
Creator:
Goumri, Abdellatif; Rocha, John-David Ray; Laakso, Dianna; Smith, C. E. & Marshall, Paul
Object Type:
Article
System:
The UNT Digital Library
Complex, Free-Boundary Problems in Materials Science. Final technical report for the period 2/1/95 - 1/31/98
None
Date:
December 7, 1999
Creator:
Davis, S. H.; Miksis, M. J. & Voorhees, P. W.
Object Type:
Report
System:
The UNT Digital Library
DART Ridership Grows for Third Consecutive Year
News release detailing growth in DART ridership for fiscal year 1999.
Date:
December 7, 1999
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
Defense Acquisitions: Progress in Meeting F-22 Cost and Schedule Goals
A statement of record issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Air Force's F-22 aircraft development and procurement program."
Date:
December 7, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
The Design and Implementation of the Integrated Timing System to be Used in the National Ignition Facility
The National Ignition Facility, or NIF, currently under construction at the Lawrence Livermore National Laboratory will contain the world's most powerful laser. By the year 2003 the NIF laser will be a research tool allowing scientists a glimpse into plasma interactions that are equivalent to those found in the center of the sun. Every eight hours the NIF will generate 1.8 MJ of 351-nm light carried by 192 pulsed laser beams and focus it onto a pea-sized target. This will result in a fusion reaction between two isotopes of hydrogen, creating for a few hundred picoseconds stellar conditions. Synchronizing the beams and diagnosing the fusion reaction requires generation and delivery of over 1000 precisely timed triggers to a multitude of systems. The NIF Integrated Timing System (ITS) was developed to provide reliable, accurately timed triggers that allow each client system to operate independently during periods of shot preparation and maintenance, yet be coordinated to a few tens of picoseconds during the experiment. The ITS applies technologies developed for fiber communications and Two-Way Time Transfer, and integrates them by way of a computer communications network to achieve distributed control, dynamically configurable coordination and independent among timing channels, and integrated self-diagnostics.
Date:
December 7, 1999
Creator:
Coutts, G. W.; Wiedwald, J. D.; Sewall, N. & Lagin, L.
Object Type:
Article
System:
The UNT Digital Library
Development of a Computer Model for Prediction of PCB Degradation Endpoints
Several researchers have demonstrated the transformation if polychlorinated biphenyls (PCBs) by both aerobic and anaerobic bacteria. This transformation, or conversion, is characteristic and often dependent on PCB congener structure and in addition, dictates the products or endpoints. Since transformation is linked to microbial activities, bioremediation has been hailed as a possible solution for PCB-contaminated soils and sediments, and several demonstration activities have verified laboratory results. This paper presents results from mathematical modeling of PCB transformation as a means of predicting possible endpoints of bioremediation. Since transformation can be influenced by both starting composition of the PCBs and microbial activity, this paper systematically evaluates several of the most common transformation patterns. The predicted data are also compared with experimental results. For example, the correlation between laboratory-observed and predicted endpoint data was, in some cases, as good as 0.98 (perfect correlation = 1.0). In addition to predicting chemical endpoints, the possible human effects of the PCBs are discussed through the use of documented dioxin-like toxicity and accumulation in humans before and after transformation.
Date:
December 7, 1999
Creator:
Just, E.M. & Klasson, T.
Object Type:
Article
System:
The UNT Digital Library
Electron and Negative Ion Densities in C(2)F(6) and CHF(3) Containing Inductively Coupled Discharges
Electron and negative ion densities have been measured in inductively coupled discharges containing C{sub 2}F{sub 6} and CHF{sub 3}. Line integrated electron density was determined using a microwave interferometer, negative ion densities were inferred using laser photodetachment spectroscopy, and electron temperature was determined using a Langmuir probe. For the range of induction powers, pressures and bias power investigated, the electron density peaked at 9 x 10{sup 12} cm{sup -2} (line-integrated) or approximately 9 x 10{sup 11} cm{sup -3}. The negative ion density peaked at approximately 1.3 x 10{sup 11} cm{sup -3}. A maximum in the negative ion density as a function of induction coil power was observed. The maximum is attributed to a power dependent change in the density of one or more of the potential negative ion precursor species since the electron temperature did not depend strongly on power. The variation of photodetachment with laser wavelength indicated that the dominant negative ion was F{sup -}. Measurement of the decay of the negative ion density in the afterglow of a pulse modulated discharge was used to determine the ion-ion recombination rate for CF{sub 4}, C{sub 2}F{sub 6} and CHF{sub 3} discharges.
Date:
December 7, 1999
Creator:
HEBNER,GREGORY A. & MILLER,PAUL A.
Object Type:
Article
System:
The UNT Digital Library
Evaluation of the Drum Tipper Mechanism for the WRAP Facility
The drum tipper assembly has had numerous problems and has recently failed. ARES Corporation was asked to evaluate the existing system and provide recommendations for a replacement system.
Date:
December 7, 1999
Creator:
Leist, K. J.
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, December 7, 1999
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 7, 1999
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Fine structure in deformed proton emitters.
In a recent experiment to study the proton radioactivity of the highly deformed {sup 131}Eu nucleus, two proton lines were detected. The higher energy one was assigned to the ground-state to ground-state decay, while the lower energy, to the ground-state to the 2{sup +} state decay. This constitutes the first observation of fine structure in proton radioactivity. With these four measured quantities, proton energies, half-life and branching ratio, it is possible to determine the Nilsson configuration of the ground state of the proton emitting nucleus as well as the 2{sup +} energy and nuclear deformation of the daughter nucleus. These results will be presented and discussed.
Date:
December 7, 1999
Creator:
Sonzogni, A. A.; Davids, C. N.; Woods, P. J.; Seweryniak, D.; Carpenter, M. P.; Ressler, J. J. et al.
Object Type:
Article
System:
The UNT Digital Library
[Handwritten notes]
Handwritten note written on the back of recycled paper on December 7, 1999, listing names of people, having SDEC representatives, and minutes.
Date:
December 7, 1999
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library