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2D Spatial Gain Profiles in Multiple-Pulse Driven Ne-like Ge Lasers

Description: In this paper, we present the direct spatial measurement of the two-dimensional gain profiles for the Ne-like Ge 196 Å laser line using a slab target illuminated by the multiple pulse technique. To understand the spatial dependence for Ge plasmas driven by a series of 100 ps pulses 400 ps apart we did a series of Nova experiments backlighting short Ge amplifiers. Two-dimensional, high-resolution, spatial images of the 196 Å laser emission from the output aperture of the amplifiers were measured… more
Date: September 21, 1998
Creator: Dunn, J.; Li, Y.; Nilsen, J. & Osterheld, A. L.
Item Type: Refine your search to only Article
open access

Ab initio and density functional studies of hydrocarbon adsorption in zeolites.

Description: The adsorption energies of methane and ethane in zeolites are investigated with ab initio molecular orbital theory and density functional theory. In this work we have used zeolite cluster models containing two, three, and five tetrahedral (Si, Al) atoms and have found equilibrium structures for complexes of methane, ethane, and propane with an acid site. If a large enough cluster is used and correlation effects are included via perturbation theory, the calculated adsorption energy for ethane is… more
Date: August 21, 1998
Creator: Curtiss, L. A.
Item Type: Refine your search to only Article
open access

Acceptance testing of the eddy current probes for measurement of aluminum hydroxide coating thickness on K West Basin fuel elements

Description: During a recent visual inspection campaign of fuel elements stored in the K West Basin, it was noted that fuel elements contained in sealed aluminum canisters had a heavy translucent type coating on their surfaces (Pitner 1997a). Subsequent sampling of this coating in a hot cell (Pitner 1997b) and analysis of the material identified it as aluminum hydroxide. Because of the relatively high water content of this material, safety related concerns are raised with respect to long term storage of thi… more
Date: August 21, 1998
Creator: Pitner, A. L.
Item Type: Refine your search to only Report
open access

Advanced Thermal Barrier Coating System Development. Technical progress report

Description: The objectives of the program are to provide an improved TBC system with increased temperature capability and improved reliability relative to current state of the art TBC systems. The development of such a coating system is essential to the ATS engine meeting its objectives. The base program consists of three phases: Phase I: Program Planning - Complete; Phase II: Development; and Phase III: Selected Specimen - Bench Test. Work is being performed in Phase II and III of the program.
Date: September 21, 1998
Item Type: Refine your search to only Report
open access

Advances in LIGA-Based Post-Mold Fabrication

Description: The establishment of a process to allow planarization of deep x-ray lithography based microfabncated metal components via diamond lapping has enabled examination of three additional microfabrication issues. The areas of improvement that are discussed include materials, microassembly and packaging, and multilevel fabrication. New materials work has centered on magnetic materials including precision micromagnets and surface treatments of electrodeposited materials. Assembly and packaging has been… more
Date: October 21, 1998
Creator: Christenson, T.R.
Item Type: Refine your search to only Article
open access

De-alerting of U.S. nuclear forces: a critical appraisal

Description: Since the end of the Cold War, there have been pressures by disarmament advocates to move more quickly to draw down, toward zero, the number of nuclear weapons in U.S. and Russian arsenals. They criticize the process of negotiating arms control agreements as being too slow, and point out that treaty implementation is hampered by the necessity of ratification by the U.S. Senate and Russian Duma. One method of moving more rapidly toward nuclear abolition suggested by some analysts is de-alerting … more
Date: August 21, 1998
Creator: Bailey, K. C. & Barish, F.
Item Type: Refine your search to only Report
open access

Analysis and modeling of a stripline beam kicker and septum

Description: A fast stripline beam kicker and septum are used to dynamically switch a high current electron beam between two beamlines. The transport of the beam through these structures is determined by the quality of the applied electromagnetic fields as well as temporal effects due to the wakefields produced by the beam. In addition, nonlinear forces in the structure will lead to emittance growth. The effect of these issues is investigated analytically and by using particle transport codes. Due to the di… more
Date: August 21, 1998
Creator: Caporaso, G. J.; Chen, Y. J.; Poole, B. R. & Wang, L. F.
Item Type: Refine your search to only Article
open access

Analytical Study of High Concentration PCB Paint at the Heavy Water Components Test Reactor

Description: This report provides results of an analytical study of high concentration PCB paint in a shutdown nuclear test reactor located at the US Department of Energy's Savannah River Site (SRS). The study was designed to obtain data relevant for an evaluation of potential hazards associated with the use of and exposure to such paints.
Date: October 21, 1998
Creator: Lowry, N.J.
Item Type: Refine your search to only Report
open access

Appropriations for FY1999: U.S. Department of Agriculture and Related Agencies

Description: 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 Appropriations Subcommittees on Agriculture Appropriations. It summarizes the current legislative status of the bill, its scope, major issues, funding levels, and related legislative activity.
Date: December 21, 1998
Creator: Chite, Ralph M.
Item Type: Refine your search to only Report
open access

Appropriations for FY1999: U.S. Department of Agriculture and Related Agencies

Description: 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 Appropriations Subcommittees on Agriculture Appropriations.
Date: December 21, 1998
Creator: Chite, Ralph M.
Item Type: Refine your search to only Report
open access

AX Tank Farm waste retrieval alternatives cost estimates

Description: This report presents the estimated costs associated with retrieval of the wastes from the four tanks in AX Tank Farm. The engineering cost estimates developed for this report are based on previous cost data prepared for Project W-320 and the HTI 241-C-106 Heel Retrieval System. The costs presented in this report address only the retrieval of the wastes from the four AX Farm tanks. This includes costs for equipment procurement, fabrication, installation, and operation to retrieve the wastes. The… more
Date: July 21, 1998
Creator: Krieg, S. A.
Item Type: Refine your search to only Report
open access

Catalytic partial oxidation reforming of hydrocarbon fuels.

Description: The polymer electrolyte fuel cell (PEFC) is the primary candidate as the power source for light-duty transportation systems. On-board conversion of fuels (reforming) to supply the required hydrogen has the potential to provide the driving range that is typical of today's automobiles. Petroleum-derived fuels, gasoline or some distillate similar to it, are attractive because of their existing production, distribution, and retailing infrastructure. The fuel may be either petroleum-derived or other… more
Date: September 21, 1998
Creator: Ahmed, S.
Item Type: Refine your search to only Article
open access

Cesium legacy safety project management work plan

Description: This Management Work Plan (MWP) describes the process flow, quality assurance controls, and the Environment, Safety, and Health requirements of the Cesium Legacy Safety Project. This MWP provides an overview of the project goals and methods for repackaging the non-conforming Type W overpacks and packaging the CsCl powder and pellets. This MWP is not intended to apply to other activities associated with the CsCl Legacy Safety Program (i.e., clean out of South Cell).
Date: April 21, 1998
Creator: Durham, J. S.
Item Type: Refine your search to only Report
open access

Chemical Solution Processing of Strontium Bismuth Tantalate Films

Description: We describe Chemical Solution Deposition (CSD) processes by which Strontium Bismuth Tantalate (SBT) thin films can be prepared at temperatures as low as 550 C. In this paper, we will present strategies used to optimize the properties of the films including solution chemistry, film composition, the nature of the substrate (or bottom electrode) used, and the thermal processing cycle. Under suitable conditions, {approximately} 1700 {angstrom} films can be prepared which have a large switchable pol… more
Date: December 21, 1998
Creator: Boyle, T.J. & Lakeman, C.D.E.
Item Type: Refine your search to only Article
open access

Cold vacuum drying facility: Phase 1 FMEA/FMECA session report

Description: The mission of the Spent Nuclear Fuel (SNF) Project is to remove the fuel currently located in the K-Basins 100 Area to provide safe handling and interim storage of the fuel. The spent nuclear fuel will be repackaged in multi-canister overpacks, partially dried in the Cold Vacuum Drying Facility (CVDF), and then transported to the Canister Storage Building (CSB) for further processing and interim storage. The CVDF, a subproject to the SNF Project, will be constructed in the 100K area. The CVDF … more
Date: April 21, 1998
Creator: Pitkoff, C.C.
Item Type: Refine your search to only Report
open access

Commercial-Scale Demonstration of the Liquid Phase Methanol (LPMEOH) Process

Description: he Liquid Phase Methanol (LPMEOW) Demonstration Project at Kingsport Tennessee, is a $213.7 million cooperative agreement between the U.S. Department of Energy (DOE) and Air Products Liquid Phase Conversion Company, L.P. (the Partnership) to produce methanol from coal-derived synthesis gas (syngas). Air Products and Chemicals, Inc. (Air Products) and Eastman Chemical Company (Eastman) formed the Partnership to execute the Demonstration Project. The LPMEOEP Process Demonstration Unit was built a… more
Date: December 21, 1998
Item Type: Refine your search to only Report
open access

Commercial-Scale Demonstration of the Liquid Phase Methanol (LPMEOH) Process

Description: The Liquid Phase Methanol (LPMEOW) Demonstration Project at Kingsport Tennessee, is a $213.7 million cooperative agreement between the U.S. Department of Energy (DOE) and Air Products Liquid Phase Conversion Company, L.P. (the Partnership) to produce methanol from coal-derived synthesis gas (syngas). Air Products and Chemicals, Inc. (Air Products) and Eastman Chemical Company (Eastman) formed the Partnership to execute the Demonstration Project. The LPMEOW Process Demonstration Unit was built a… more
Date: December 21, 1998
Item Type: Refine your search to only Report
open access

Commercial-Scale Demonstration of the Liquid Phase Methanol (LPMEOTH) Process

Description: The Liquid Phase Methanol (LPMEOW) Demonstration Project at Kingsport, Tennessee, is a $213.7 million cooperative agreement between the U.S. Department of Energy (DOE) and Air Products Liquid Phase Conversion Company, L.P. (the Partnership) to produce methanol from coal-derived synthesis gas (syngas). Air Products and Chemicals, Inc. (Air Products) and Eastman Chemical Company (Eastman) formed the Partnership to execute the Demonstration Project. The LPMEOI-P Process Demonstration Unit was buil… more
Date: December 21, 1998
Item Type: Refine your search to only Report
open access

Communication Between the Cell Membrane and the Nucleus: Role of Protein Compartmentalization

Description: Understanding how the information is conveyed from outside to inside the cell is a critical challenge for all biologists involved in signal transduction. The flow of information initiated by cell-cell and cell-extracellular matrix contacts is mediated by the formation of adhesion complexes involving multiple proteins. Inside adhesion complexes, connective membrane skeleton (CMS) proteins are signal transducers that bind to adhesion molecules, organize the cytoskeleton, and initiate biochemical … more
Date: October 21, 1998
Creator: Lelievre, Sophie A & Bissell, Mina J
Item Type: Refine your search to only Article
open access

Comparisons of HELIOS Calculated Isotope Concentrations to Measured Values for Several Reactor Systems

Description: Heavy metal and fission product noble gas concentrations in spent fuel from two different PWR'S were calculated using HELIOS and compared to measured results from the literature. It was found that for the U-235/U-238 and Pu-240/Pu-239 isotopic ratios, the HELIOS calculation agreed to within the experimental uncertainty. For the Xe-131/Xe-134 isotopic ratios, HELIOS tended to overestimate the result by up to 4%. Conversely for the Xe-132/Xe-134 ratios, HELIOS underestimated the result by a sligh… more
Date: October 21, 1998
Creator: Charlton, W. S.; Perry, R. T.; Fearey, B. L. & Parish, T. A.
Item Type: Refine your search to only Article
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