6 GeV synchrotron x-ray source: Conceptual design report. Supplement B - conceptual design of proposed beam lines for the 6 GeV light source (open access)

6 GeV synchrotron x-ray source: Conceptual design report. Supplement B - conceptual design of proposed beam lines for the 6 GeV light source

In this document, preliminary conceptual designs are presented for ten sample beamlines for the 6 GeV Light Source. These beamlines will accommodate investigations in solid-state physics, materials science, materials technology, chemical technology, and biological and medical sciences. In future, the designs will be altered to include new developments in x-ray optics and hardware technologies. The research areas addressed by the samples beamlines are as follows: Topography and Radiography/Tomography (section 2); Inelastic Scattering with Ultrahigh Energy Resolution (Section 3); Surface and Bulk Studies Using High Momentum Resolution (Section 4); Inelastic Scattering from Charge and Spin (Section 5); Advanced X-Ray Photoelectron Spectroscopy Studies (Section 6); Small Angle X-Ray Scattering Studies (Section 7); General Purpose Scattering for Materials Studies (Section 8); Multiple-Energy Anomalous-Dispersion Studies of Proteins (Section 9); Protein Crystallography (Section 10); Time- and Space-resolved X-Ray Spectroscopy (Section 11); Medical Diagnostic Facility (Section 12); and Transuranium Research Facility (Section 13). The computer systems to be used on the beamlines are also discussed in Section 14 of this document.
Date: March 1, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library
300 Area dangerous waste tank management system: Compliance plan approach. Final report (open access)

300 Area dangerous waste tank management system: Compliance plan approach. Final report

In its Dec. 5, 1989 letter to DOE-Richland (DOE-RL) Operations, the Washington State Dept. of Ecology requested that DOE-RL prepare ``a plant evaluating alternatives for storage and/or treatment of hazardous waste in the 300 Area...``. This document, prepared in response to that letter, presents the proposed approach to compliance of the 300 Area with the federal Resource Conservation and Recovery Act and Washington State`s Chapter 173-303 WAC, Dangerous Waste Regulations. It also contains 10 appendices which were developed as bases for preparing the compliance plan approach. It refers to the Radioactive Liquid Waste System facilities and to the radioactive mixed waste.
Date: March 1, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library
300 Area waste acid treatment system closure plan. Revision 1 (open access)

300 Area waste acid treatment system closure plan. Revision 1

This section provides a description of the Hanford Site, identifies the proposed method of 300 Area Waste Acid Treatment System (WATS) closure, and briefly summarizes the contents of each chapter of this plan.
Date: March 1, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library
1300-nm gain obtained with dysprosium-doped chloride crystals (open access)

1300-nm gain obtained with dysprosium-doped chloride crystals

Dy{sup 3+} - doped chloride crystals have high 1300-nm emission quantum yields. Pump - probe experiments on La Cl{sub 3}:Dy{sup 3+} demonstrate optical gain consistent with predictions based on spectroscopic cross sections and lifetimes.
Date: March 1, 1996
Creator: Page, R. H.; Schaffers, K. I.; Beach, R. J.; Payne, S. A. & Krupke, W. F.
Object Type: Article
System: The UNT Digital Library
1995 annual water monitoring report, LEHR environmental restoration, University of California at Davis (open access)

1995 annual water monitoring report, LEHR environmental restoration, University of California at Davis

This 1995 Annual Water Monitoring Report presents analytical data collected between January and December 1995 at the Laboratory for Energy-Related Health Research (LEHR) located at the University of California (UC), Davis. This report has been prepared by Pacific Northwest National Laboratory in compliance with the Water Monitoring Plan for the LEHR site, which contains the sample collection, analysis, and quality assurance/quality control procedures and reporting requirements. Water monitoring during 1995 was conducted in conjunction with the Remedial Investigation/Feasibility Study currently being implemented at the LEHR site as part of a US Department of Energy (DOE)-sponsored environmental restoration program. Based on a review of historical groundwater monitoring data compiled since the fall of 1990, the list of analytes included in the program was reduced and the schedule for analyzing the remaining analytes was revised. The revision was implemented for the first time in the summer monitoring period. Analytes eliminated from the program were those that were (1) important for establishing baseline groundwater chemistry (alkalinity, anions, Eh, total organic carbon, and chemical oxygen demand); (2) important for establishing sources of contamination; (3) not detected in water samples or not from the LEHR site; and (4) duplicates of another measurement. Reductions in the …
Date: March 1, 1996
Creator: Stewart, D. L.; Smith, R. M. & Sauer, D. R.
Object Type: Report
System: The UNT Digital Library
The 1995 HEV challenge: Results and technology summary (open access)

The 1995 HEV challenge: Results and technology summary

The objective of this paper is to analyze and summarize the performance results and the technology used in the 1995 Hybrid Electric Vehicle (HEV) Challenge. Government and industry are exploring hybrid electric vehicle technology to significantly improve fuel economy and reduce emissions of the vehicles without sacrificing performance. This last in a three-year series of HEV competitions provided the testing grounds to evaluate the different approaches of 29 universities and colleges constructing HEVS. These HEVs competed in an affay of events, including: acceleration, emissions testing, consumer acceptance, range, vehicle handling, HVAC testing, fuel economy, and engineering design. The teams also documented the attributes of their vehicles in the technical reports. The strategies and approaches to HEV design are analyzed on the basis of the data from each of the events. The overall performance for promising HEV approaches is also examined. Additional significant design approaches employed by the teams are presented, and the results from the events are discussed.
Date: March 1, 1996
Creator: LeBlanc, N.; Larsen, R. & Duoba, M.
Object Type: Article
System: The UNT Digital Library
1995 PVUSA progress report. Final report (open access)

1995 PVUSA progress report. Final report

Photovoltaics for Utility Scale Applications (PVUSA) is a national public-private partnership that is assessing and demonstrating the viability of utility-scale (US) photovoltaic (PV) electric generation systems and recent developments in PV module technology. This report updates the project`s progress, reviews the status and performance of the various PV installations during 1995, summarizes key accomplishments and conclusions, and serves as the final report under Pacific Gas and Electric Company`s project management.
Date: March 1, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library
2l-nl{prime} x-ray transitions from neonlike charge states of the row 5 metals with 39 {le} Z {le} 46 (open access)

2l-nl{prime} x-ray transitions from neonlike charge states of the row 5 metals with 39 {le} Z {le} 46

X-ray spectra of 2l-2l{prime} transitions with 3 {le} n {le} 12 in the row five transition metals zirconium (Z = 40), niobium (Z = 41), molybdenum (Z = 42) and palladium (Z = 46) from charge states around neonlike have been observed from Alcator C-Mod plasmas. Accurate wavelengths ({+-} .2 m{angstrom}) have been determined by comparison with neighboring argon, chlorine and sulfur lines with well known wavelengths. Line identifications have been made by comparison to ab initio atomic structure calculations, using a fully relativistic, parametric potential code. For neonlike ions, calculated wavelengths and oscillator strengths are tabulated for 2p-nd transitions in Y (Z = 39), Tc (Z = 43), Ru (Z = 44) and Rh (Z = 45) with n = 6 and 7. The magnitude of the configuration interaction between the (2p{sup 5}){sub 1/2}6d{sub 3/2} J = 1 level and the (2p{sup 5}){sub 3/2}7D{sub 5/2} J = 1 levels is demonstrated as a function of atomic number for successive neonlike ions. Measured spectra of selected transitions in the aluminum-, magnesium-, sodium- and fluorine like isosequences are also shown.
Date: March 18, 1996
Creator: Rice, J. E.; Terry, J. L.; Marmar, E. S.; Fournier, K. B.; Goldstein, W. H.; Finkenthal, M. et al.
Object Type: Article
System: The UNT Digital Library
Accelerated tests for bounding the low dose rate radiation response of lateral PNP bipolar junction transistors (open access)

Accelerated tests for bounding the low dose rate radiation response of lateral PNP bipolar junction transistors

Low dose rate gain degradation of lateral pnp bipolar transistors can be simulated by accelerated irradiations performed at approximately 135 degrees C. Degradation enhancement is explained by temperature- dependent radiation-induced interface trap formation above the transistor`s base.
Date: March 1, 1996
Creator: Witczak, S.C.; Schrimpf, R.D.; Galloway, K.F.; Schmidt, D.M.; Fleetwood, D.M.; Pease, R.L. et al.
Object Type: Article
System: The UNT Digital Library
Acceptance test plan for the master equipment list (MEL) database system (open access)

Acceptance test plan for the master equipment list (MEL) database system

Acceptance Test Procedure for the Master Equipment List (MEL) Database System -- Phase I
Date: March 1, 1996
Creator: Sterling, S.G.
Object Type: Report
System: The UNT Digital Library
Acceptance test procedure for K basins dose reduction project clean and coat equipment (open access)

Acceptance test procedure for K basins dose reduction project clean and coat equipment

This document is the Acceptance Test Procedure (ATP) for the clean and coat equipment designed by Oceaneering Hanford, Inc. under purchase order MDK-XVC-406988 for use in the 105 K East Basin. The ATP provides the guidelines and criteria to test the equipment`s ability to clean and coat the concrete perimeter, divider walls, and dummy elevator pit above the existing water level. This equipment was designed and built in support of the Spent Nuclear Fuel, Dose Reduction Project. The ATP will be performed at the 305 test facility in the 300 Area at Hanford. The test results will be documented in WHC-SD-SNF-ATR-020.
Date: March 11, 1996
Creator: Creed, R.F.
Object Type: Report
System: The UNT Digital Library
Acceptance test report for high pressure water jet system feed pump (open access)

Acceptance test report for high pressure water jet system feed pump

This document summarizes results of WHC-SD-SNF-ATP-016, Rev. 0 ``Acceptance Test Procedure High Pressure Water Jet System``, conducted on December 20, 1995 and December 22, 1995. This jet supplies water at 15,000 psi @ 15 gpm to nozzles to clean surfaces of empty fuel storage canisters.
Date: March 12, 1996
Creator: Crystal, J.B.
Object Type: Report
System: The UNT Digital Library
Accident analysis for the low-level mixed waste ``No-Flame`` option in the U.S. Department of Energy Waste Management Programmatic Environmental Impact Statement (open access)

Accident analysis for the low-level mixed waste ``No-Flame`` option in the U.S. Department of Energy Waste Management Programmatic Environmental Impact Statement

This paper outlines the various steps pursued in performing a generic safety assessment of the various technologies considered for the low-level mixed waste (LLMW) ``No-Flame`` option in the US Department of Energy (DOE) Waste Management Programmatic Environmental Impact Statement (WM PEIS). The treatment technologies for the ``No-Flame`` option differ from previous LLMW technologies analyzed in the WM PEIS in that the incineration and thermal desorption technologies are replaced by sludge washing, soil washing, debris washing, and organic destruction. A set of dominant waste treatment processes and accident scenarios were selected for analysis by means of a screening process. A subset of results (release source terms) from this analysis is presented.
Date: March 1, 1996
Creator: Folga, S.; Kohout, E.; Mueller, C.J.; Nabelssi, B.; Wilkins, B. & Mishima, J.
Object Type: Article
System: The UNT Digital Library
Accuracy considerations for implementing velocity boundary condiditons in vorticity formulations (open access)

Accuracy considerations for implementing velocity boundary condiditons in vorticity formulations

A vorticity formulation is described that satisfies the velocity boundary conditions for the incompressible Navier-Stokes equations. Velocity boundary conditions are satisfied by determining the appropriate vortex sheets that must be created on the boundary. Typically, the vortex sheet strengths are determined by solving a set of linear equations that is over-specified. The over-specification arises because an integral constraint on the vortex sheets is imposed. Vortex sheets determined this way do not accurately satisfy both components of the velocity boundary conditions because over-specified systems do not have unique solutions. An integral collocation technique is applied to a generalized Helmholtz decomposition. This formulation implicitly satisfies an integral constraint that is more general that constraints typically used. Improvements in satisfying velocity boundary conditions are shown.
Date: March 1, 1996
Creator: Kempka, S. N.; Glass, M. W.; Peery, J. S.; Strickland, J. H. & Ingber, M. S.
Object Type: Report
System: The UNT Digital Library
Activation caused by proton beam losses in Accelerator Production of Tritium LINAC (open access)

Activation caused by proton beam losses in Accelerator Production of Tritium LINAC

A variety of accelerator designs are being considered for the Accelerator Production of Tritium (APT) project at Alamos National Laboratory. Because activation of the structural components of the accelerator is considered a major radiation protection issue, we have developed a computational methodology to estimate quantitatively radionuclide inventories and gamma dose rates resulting from accelerator operation. The work presented here illustrates the use of our computational methodology by focusing on the 20 and 100 MeV sections of the Bridge-Coupled Drift Tube LINAC (BCDTL), and the 100 and 1000 MeV sections of the Coupled Cavity LINAC (CCL).
Date: March 1, 1996
Creator: Beard, C. A.; Eaton, S. L.; Daemen, L. L.; Waters, L. S. & Wilson, W. B.
Object Type: Article
System: The UNT Digital Library
Adaptation of gas tagging for failed fuel identification in light water reactors (open access)

Adaptation of gas tagging for failed fuel identification in light water reactors

This paper discusses experience with noble gas tagging and its adaptation to commercial reactors. It reviews the recent incidence of fuel failures in light water reactors, and methods used to identify failures, and concludes that the on-line technique of gas tagging could significantly augment present flux tilting, sipping and ultrasonic testing of assemblies. The paper describes calculations on tag gas stability in-reactor, and tag injection tests that were carried out collaboratively with Commonwealth Edison Company in the Byron-2 pressurized water reactor (P%a) and with Duke Power Company and Babcock and Wilcox Fuel Company in the Oconee-2 PWM. The tests gave information on: (a) noble gas concentration dynamics as the tag gases were dissolved in and eventually removed from subsystems of the RCS; and (b) the suitability of candidate Ar, Ne, Kr and Xe isotopes for tagging PWR fuel. It was found that the activity of Xe{sup 125} (the activation product of the tag isotope Xe{sup 124}) acted as a ``tag of a tag`` and tracked gas through the reactor; measured activities are being used to model gas movement in the RCS. Several interference molecules (trace contaminants normally present at sub-ppM concentrations in RCS samples) and entrained air in the RCS …
Date: March 1, 1996
Creator: Lambert, J.D.B.; Gross, K.C.; Depiante, E.V.; Callis, E.L. & Egebrecht, P.M.
Object Type: Report
System: The UNT Digital Library
Adaptive external torque estimation by means of tracking a Lyapunov function (open access)

Adaptive external torque estimation by means of tracking a Lyapunov function

A real-time method is presented to adoptively estimate three-dimensional unmodeled external torques acting on a spacecraft. This is accomplished by forcing the tracking error dynamics to follow the Lyapunov function underlying the feedback control law. For the case where the external torque is constant, the tracking error dynamics are shown to converge asypmtotically. The methodology applies not only to the control law used in this paper, but can also be applied to most Lyapunov derived feedback control laws. The adaptive external torque estimation is very robust in the presence of measurement noise, since a numerical integration is used instead of a numerical differentiation. Spacecraft modeling errors, such as in the inertia matrix, are also compensated for by this method. Several examples illustrate the practical significance of these ideas.
Date: March 1, 1996
Creator: Schaub, H.; Junkins, J.L. & Robinett, R. D.
Object Type: Report
System: The UNT Digital Library
An adaptive mesh refinement algorithm for the discrete ordinates method (open access)

An adaptive mesh refinement algorithm for the discrete ordinates method

The discrete ordinates form of the radiative transport equation (RTE) is spatially discretized and solved using an adaptive mesh refinement (AMR) algorithm. This technique permits the local grid refinement to minimize spatial discretization error of the RTE. An error estimator is applied to define regions for local grid refinement; overlapping refined grids are recursively placed in these regions; and the RTE is then solved over the entire domain. The procedure continues until the spatial discretization error has been reduced to a sufficient level. The following aspects of the algorithm are discussed: error estimation, grid generation, communication between refined levels, and solution sequencing. This initial formulation employs the step scheme, and is valid for absorbing and isotopically scattering media in two-dimensional enclosures. The utility of the algorithm is tested by comparing the convergence characteristics and accuracy to those of the standard single-grid algorithm for several benchmark cases. The AMR algorithm provides a reduction in memory requirements and maintains the convergence characteristics of the standard single-grid algorithm; however, the cases illustrate that efficiency gains of the AMR algorithm will not be fully realized until three-dimensional geometries are considered.
Date: March 1, 1996
Creator: Jessee, J. P.; Fiveland, W. A.; Howell, L. H.; Colella, P. & Pember, R. B.
Object Type: Article
System: The UNT Digital Library
Adhesion studies of GaAs-based ohmic contact and bond pad metallization (open access)

Adhesion studies of GaAs-based ohmic contact and bond pad metallization

Adhesion strength and surface morphology of commonly used n- and p-type ohmic contacts and pad metallization schemes for GaAs were investigated. GeNiAu, GePdAu, BeAu, and TiPtAu (being studied as potential ohmic contacts for internal optoelectronic devices) had quantitiative measurements made using wire bond pull testing to determine adhesion. Bond pad metals deposited as evaporated TiAu, TiPtAu, and 2-5 micron thick electroplated Au deposited on both semi-insulating GaAs and on Si{sub 3}N{sub 4}/GaAs were evaluated independently from the ohmic contact metals. In all samples was observed a strong correlation between surface treatment, surface morphology, wire bondability, and bond strength. Very high bond strengths (pull test average values above 6.5 grams force with 25 micron dia Au wire) wereobtained for n-type, p-type, and bond pad metals. Average values of 8.0 gram force were achieved with two-step GeAu/NiAu/TiPtAu metallization, while one-step deposition yielded poorer values. Adhesion was also monitored after aging at 250 C in air for four different times up to 60 hr by wire bond pull testing, with little degradation occurring.
Date: March 1, 1996
Creator: Seigal, P. K.; Briggs, R. D.; Rieger, D. J.; Baca, A. G. & Howard, A. J.
Object Type: Article
System: The UNT Digital Library
Advanced fabrication technologies for nano-electronics (open access)

Advanced fabrication technologies for nano-electronics

Three novel fabrication technologies are presented which greatly increase the tools available for the realization of nano-electronic devices. First, a sub-micron area post structure descending from a metallic airbridge allows gating of regions as small as 0.1 {mu}m in diameter. This has enabled the study of such quantum phenomena as coupling of parallel quantum point contacts, and electron focusing around a tunable quantum antidot. We also describe two new techniques for backgating multiquantum well structures with submicron lateral resolution. These techniques enable separate ohmic contacts to individual quantum wells spaced as closely as 100 {Angstrom}, and thus allow the fabrication of novel quantum tunneling devices. The first technique uses regrowth over a patterned ion-implanted substrate. The second involves a novel epoxy-bond-and-stop-etch (EBASE) processing scheme, whereby the original substrate is etched away and the backside then patterned using conventional methods.
Date: March 1, 1996
Creator: Simmons, J. A.; Weckwerth, M. V. & Baca, W. E.
Object Type: Article
System: The UNT Digital Library
The advanced manufacturing science and technology program. FY 95 Annual Report (open access)

The advanced manufacturing science and technology program. FY 95 Annual Report

This is the Fiscal Year 1995 Annual Report for the Advanced Manufacturing Science and Technology (AMST) sector of Los Alamos Tactical Goal 6, Industrial Partnering. During this past fiscal year, the AMST project leader formed a committee whose members represented the divisions and program offices with a manufacturing interest to examine the Laboratory`s expertise and needs in manufacturing. From a list of about two hundred interest areas, the committee selected nineteen of the most pressing needs for weapon manufacturing. Based upon Los Alamos mission requirements and the needs of the weapon manufacturing (Advanced Design and Production Technologies (ADaPT)) program plan and the other tactical goals, the committee selected four of the nineteen areas for strategic planning and possible industrial partnering. The areas selected were Casting Technology, Constitutive Modeling, Non-Destructive Testing and Evaluation, and Polymer Aging and Lifetime Prediction. For each area, the AMST committee formed a team to write a roadmap and serve as a partnering technical consultant. To date, the roadmaps have been completed for each of the four areas. The Casting Technology and Polymer Aging teams are negotiating with specific potential partners now, at the close of the fiscal year. For each focus area we have created a …
Date: March 1, 1996
Creator: Hill, J.
Object Type: Report
System: The UNT Digital Library
Advanced nickel-metal hydride cell development. Final report, September 1993--March 1996 (open access)

Advanced nickel-metal hydride cell development. Final report, September 1993--March 1996

Inert gas atomization using metal hydride alloys for a Ni/MH{sub x}cell was studied. Atomization of the alloys was demonstrated on a small production scale up to batch size of several kg. Relative performance of the atomized and nonatomized alloys was investigated for the electrode material in a Ni/MH{sub x} cell. The study included effects of charge-discharge rates, temperature, and particle size on cell voltage (polarization) and specific capacity. Results show that the specific capacity of the present atomized alloys was apprecialy smaller than that of the nonatomized powder, especially for initial cycles. Full activation of the atomized alloys oftentook several hundreds of cycles. However, no appreciable difference in discharge rate capability was observed with R10 and R12 alloys. Chemical compositions were indistinguishable, although the oxygen contents of the atomized alloys were always higher. Effects of Ni and Cu coating on alloy performance were studied after electroless coating; the coatings noticeably improved the electrode rate capability for all the alloys. The electrode polarization was esecially improved, but not the cycle life. Further studies are needed.
Date: March 1, 1996
Creator: Lim, Hong S.
Object Type: Report
System: The UNT Digital Library
Advanced packaging technology for high frequency photonic applications (open access)

Advanced packaging technology for high frequency photonic applications

An advanced packaging concept has been developed for optical devices. This concept allows multiple fibers to be coupled to photonic integrated circuits, with no fiber penetration of the package walls. The principles used to accomplish this concept involves a second-order grating to couple light in or out of the photonic circuit, and a binary optic lens which receives this light and focuses it into a single-mode optical fiber. Design, fabrication and electrical/optical measurements of this packaging concept are described.
Date: March 1, 1996
Creator: Armendariz, M. G.; Hadley, G. R. & Warren, M. E.
Object Type: Report
System: The UNT Digital Library
Advanced reservoir characterization in the antelope shale to establish the viability of CO{sub 2} enhanced oil recovery in California`s Monterey formation siliceous shales. Technical progress report (open access)

Advanced reservoir characterization in the antelope shale to establish the viability of CO{sub 2} enhanced oil recovery in California`s Monterey formation siliceous shales. Technical progress report

The primary objective of this research is to conduct advanced reservoir characterization and modeling studies in the Antelope Shale reservoir. Characterization studies will be used to determine the technical feasibility of implementing a CO{sub 2} enhanced oil recovery project in the Buena Vista Hills field. The Buena Vista Hills pilot CO{sub 2} project will demonstrate the economic viability and widespread applicability of CO{sub 2} flooding in fractured siliceous shales reservoirs of the San Joaquin Valley. The research consists of four primary work processes: reservoir matrix and fluid characterization; fracture characterization; reservoir modeling and simulation; and, CO{sub 2} pilot flood and evaluation. Work done in these areas can be subdivided into two phases or budget periods. The first phase of the project will focus on the application of a variety of advanced reservoir characterization techniques to determine the production characteristics of the Antelope Shale reservoir. Reservoir models based on the results of the characterization work will be used to evaluate how the reservoir will respond to secondary recovery and EOR processes. The second phase of the project will include the implementation and evaluation of an advanced EOR pilot in the West Dome of the Buena Vista Hills field. The project has …
Date: March 31, 1996
Creator: Smith, S.C.
Object Type: Report
System: The UNT Digital Library