2001 Gordon Research Conference on Photoions, Photoionization and Photodetachment. Final progress report [agenda and attendees list] (open access)

2001 Gordon Research Conference on Photoions, Photoionization and Photodetachment. Final progress report [agenda and attendees list]

The Gordon Research Conference on Photoions, Photoionization and Photodetachment was held at Williams College, Williamstown, Massachusetts, July 8-13, 2001. The 72 conference attendees represented the spectrum of endeavor in this field, coming from academia, industry, and government laboratories, and including US and foreign scientists, senior researchers, young investigators, and students. Emphasis was placed on current unpublished research and discussion of the future target areas in this field. There was a conscious effort to stimulate discussion about the key issues in the field today. Time for formal presentations was limited. Sessions included the following topics: Vibrational structure, Time resolved studies: nuclear wavepackets, Valence photoionization, Clusters and networks, Resonance structures and decay mechanisms, Ultrafast photoionization, Threshold photoionization, Molecule fixed properties, and Collisional phenomena.
Date: July 13, 2001
Creator: Johnson, Mark
Object Type: Report
System: The UNT Digital Library
Assessment of Carbon Tetrachloride Groundwater Transport in Support of the Hanford Carbon Tetrachloride Innovative Technology Demonstration Program (open access)

Assessment of Carbon Tetrachloride Groundwater Transport in Support of the Hanford Carbon Tetrachloride Innovative Technology Demonstration Program

Groundwater modeling was performed in support of the Hanford Carbon Tetrachloride Innovative Treatment Remediation Demonstration (ITRD) Program. The ITRD program is facilitated by Sandia National Laboratory for the Department of Energy Office of Science and Technology. This report was prepared to document the results of the modeling effort and facilitate discussion of characterization and remediation options for the carbon tetrachloride plume among the ITRD participants. As a first step toward implementation of innovative technologies for remediation of the carbon tetrachloride (CT) plume underlying the 200-West Area, this modeling was performed to provide an indication of the potential impact of the CT source on the compliance boundary approximately 5000 m distant. The primary results of the modeling bracket the amount of CT source that will most likely result in compliance/non-compliance at the boundary and the relative influence of the various modeling parameters.
Date: July 13, 2001
Creator: Truex, Michael J; Murray, Christopher J; Cole, Charles R; Cameron, Richard J; Johnson, Michael D; Skeen, Rodney S et al.
Object Type: Report
System: The UNT Digital Library
Assessment of Carbon Tetrachloride Groundwater Transport in Support of the Hanford Carbon Tetrachloride Innovative Technology Demonstration Program (open access)

Assessment of Carbon Tetrachloride Groundwater Transport in Support of the Hanford Carbon Tetrachloride Innovative Technology Demonstration Program

Groundwater modeling was performed in support of the Hanford Carbon Tetrachloride Innovative Treatment Remediation Demonstration (ITRD) Program. The ITRD program is facilitated by Sandia National Laboratory for the Department of Energy Office of Science and Technology. This report was prepared to document the results of the modeling effort and facilitate discussion of characterization and remediation options for the carbon tetrachloride plume among the ITRD participants. As a first step toward implementation of innovative technologies for remediation of the carbon tetrachloride (CT) plume underlying the 200-West Area, this modeling was performed to provide an indication of the potential impact of the CT source on the compliance boundary approximately 5000 m distant. The primary results of the modeling bracket the amount of CT source that will most likely result in compliance/non-compliance at the boundary and the relative influence of the various modeling parameters.
Date: July 13, 2001
Creator: Truex, Michael J.; Murray, Christopher J.; Cole, Charles R.; Cameron, Richard J.; Johnson, Michael D.; Skeen, Rodney S. et al.
Object Type: Report
System: The UNT Digital Library
Bench-Scale Evaporation of a Large Hanford Envelope C Sample (Tank 241-AN-102) (open access)

Bench-Scale Evaporation of a Large Hanford Envelope C Sample (Tank 241-AN-102)

This report contains the results of the Bench Scale evaporation of a large sample of pretreated Envelope C (AN102).
Date: July 13, 2001
Creator: Crowder, M.L.
Object Type: Report
System: The UNT Digital Library
Biofuels News, Spring/Summer 2001, Vol. 4, No. 2 (open access)

Biofuels News, Spring/Summer 2001, Vol. 4, No. 2

Newsletter for the DOE biofuels program. This issue contains articles on the National Energy Policy Plan, national energy policy, the proposed budget for biofuels, and new faces at DOE.
Date: July 13, 2001
Creator: Tuttle, J.
Object Type: Book
System: The UNT Digital Library
Bulgaria: Country Background Report (open access)

Bulgaria: Country Background Report

This report details the Bulgaria country's background information such as its foreign policy, regional relations, and the U.S - Bulgarian Relations.
Date: July 13, 2001
Creator: Kim, Julie
Object Type: Report
System: The UNT Digital Library
Compact electron beam focusing column (open access)

Compact electron beam focusing column

A novel design for an electron beam focusing column has been developed at LBNL. The design is based on a low-energy spread multicusp plasma source which is used as a cathode for electron beam production. The focusing column is 10 mm in length. The electron beam is focused by means of electrostatic fields. The column is designed for a maximum voltage of 50 kV. Simulations of the electron trajectories have been performed by using the 2-D simulation code IGUN and EGUN. The electron temperature has also been incorporated into the simulations. The electron beam simulations, column design and fabrication will be discussed in this presentation.
Date: July 13, 2001
Creator: Persaud, Arun; Leung, Ka-Ngo & Reijonen, Jani
Object Type: Article
System: The UNT Digital Library
Defense High Level Waste Disposal Container System Description Document (open access)

Defense High Level Waste Disposal Container System Description Document

The Defense High Level Waste Disposal Container System supports the confinement and isolation of waste within the Engineered Barrier System of the Monitored Geologic Repository (MGR). Disposal containers are loaded and sealed in the surface waste handling facilities, transferred to the underground through the accesses using a rail mounted transporter, and emplaced in emplacement drifts. The defense high level waste (HLW) disposal container provides long-term confinement of the commercial HLW and defense HLW (including immobilized plutonium waste forms [IPWF]) placed within disposable canisters, and withstands the loading, transfer, emplacement, and retrieval loads and environments. US Department of Energy (DOE)-owned spent nuclear fuel (SNF) in disposable canisters may also be placed in a defense HLW disposal container along with commercial HLW waste forms, which is known as co-disposal. The Defense High Level Waste Disposal Container System provides containment of waste for a designated period of time, and limits radionuclide release. The disposal container/waste package maintains the waste in a designated configuration, withstands maximum handling and rockfall loads, limits the individual canister temperatures after emplacement, resists corrosion in the expected handling and repository environments, and provides containment of waste in the event of an accident. Defense HLW disposal containers for HLW disposal …
Date: July 13, 2001
Creator: Pettit, N. E.
Object Type: Report
System: The UNT Digital Library
Evaluation of uncertainties due to hydrogeological modeling and groundwater flow analysis: Effective continuum model using TOUGH2 (open access)

Evaluation of uncertainties due to hydrogeological modeling and groundwater flow analysis: Effective continuum model using TOUGH2

Starting with regional geographic, geologic, hydrologic, geophysical, and meteorological data, we develop an effective continuum model to simulate subsurface flow and transport in a 4 km by 6 km by 3 km thick fractured granite rock mass overlain sedimentary layers. Individual fractures are not modeled explicitly. Rather, continuum permeability and porosity distributions are assigned stochastically, based on well-test data and fracture density measurements. Large-scale features such as lithologic layering and major fault zones are assigned deterministically. We employ the TOUGH2 simulator for the flow calculation. The model simulates the steady-state groundwater flow through the site, then streamline analysis is used to calculate travel times for particles leaving specified monitoring points to reach the boundary of the model. Model results for the head distribution compare favorably with head profiles measured in several deep boreholes and the overall groundwater flow is consistent with regional water balance data. Predicted travel times range from 1 to 25 years.
Date: July 13, 2001
Creator: Doughty, Christine & Karasaki, Kenzi
Object Type: Report
System: The UNT Digital Library
Executive and Independent Agency Publications: Where to Get Official Documents (open access)

Executive and Independent Agency Publications: Where to Get Official Documents

This is a directory of sources that congressional offices may use to obtain publications from the Executive Office of the President, the executive departments, and the independent agencies and commissions of the federal government. Also included is information on the Superintendent of Documents, the U.S. Government Printing Office, and the federal government’s printing policies; suggestions on what to do when a publication is out of print; and information on where copies of government publications may be obtained on the Internet. The information for each agency includes address, telephone number, fax number, and Internet e-mail address and Website, where available
Date: July 13, 2001
Creator: Campos, Jesus
Object Type: Report
System: The UNT Digital Library
FEASIBILITY ANALYSIS FOR INSTALLING A CIRCULATING FLUIDIZED BED BOILER FOR COFIRING MULTIPLE BIOFUELS AND OTHER WASTES WITH COAL AT PENN STATE UNIVERSITY (open access)

FEASIBILITY ANALYSIS FOR INSTALLING A CIRCULATING FLUIDIZED BED BOILER FOR COFIRING MULTIPLE BIOFUELS AND OTHER WASTES WITH COAL AT PENN STATE UNIVERSITY

The Pennsylvania State University, under contract to the U.S. Department of Energy, National Energy Technology Laboratory is performing a feasibility analysis on installing a state-of-the-art circulating fluidized bed boiler and ceramic filter emission control device at Penn State's University Park campus for cofiring multiple biofuels and other wastes with coal, and developing a test program to evaluate cofiring multiple biofuels and coal-based feedstocks. The objective of the project is being accomplished using a team that includes personnel from Penn State's Energy Institute, Office of Physical Plant, and College of Agricultural Sciences, Foster Wheeler Energy Services, Inc., Parsons Energy and Chemicals Group, Inc., and Cofiring Alternatives. During this reporting period, work focused on completing the biofuel characterization and the design of the conceptual fluidized bed system.
Date: July 13, 2001
Creator: Miller, Bruce G.; Miller, Sharon Falcone; Cooper, Robert; Donovan, Douglas; Gaudlip, John; Lapinsky, Matthew et al.
Object Type: Report
System: The UNT Digital Library
Federal Emergency Management Agency: Weaknesses Exist in the Cerro Grande Fire Assistance Claim Validation Process (open access)

Federal Emergency Management Agency: Weaknesses Exist in the Cerro Grande Fire Assistance Claim Validation Process

A letter report issued by the General Accounting Office with an abstract that begins "While the federal government has accepted responsibility for the Cerro Grande fire and enacted the Cerro Grande Fire Assistance Act (CGFAA) to expeditiously compensate those injured by the fire, it is incumbent on the Federal Emergency Management Agency (FEMA) as the administering agency to establish an effective system of internal control to safeguard the funds appropriated for the Cerro Grande program. The act lays a framework to establish such accountability by requiring FEMA to determine that victims' injuries and losses occurred as result of the fire and to determine the amount of allowed compensation. FEMA has established a process to review all claims submitted. However, this process as currently implemented does not provide adequate assurance that only valid claims were paid or that the amounts paid were reasonable because there is insufficient documentation of the steps taken to determine the validity and reasonableness of the claim amounts. In addition, policies and procedures for paying claims have either not yet been developed or have not been formally and centrally documented."
Date: July 13, 2001
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Fluid-Rock Characterization and Interactions in NMR Well Logging (open access)

Fluid-Rock Characterization and Interactions in NMR Well Logging

The objective of this project is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. This is the first annual progress report submitted to the DOE. It reports on the work completed during the reporting period even if it may have started before this period. This project is a partnership between Professor George J. Hirasaki at Rice University and Professor Kishore Mohanty at University of Houston. In addition to the DOE, this project is supported by a consortium of oil companies and service companies. The fluid properties characterization has emphasized the departure of live oils from correlations based on dead oils. Also, asphaltic components can result in a difference between the T1 and T2 relaxation time distributions as well as reduce the hydrogen index. The fluid rock characterizations that are reported here are the effects of wettability and internal magnetic field gradients. A pore reconstruction method ha s been developed to recreate three-dimensional porous media from two-dimensional images that reproduce some of their key statistical properties. A Monte Carlo simulation technique has been developed to calculate the magnetization decay in fluid saturated porous media given their pore structure.
Date: July 13, 2001
Creator: Hirasaki, George J. & Mohanty, Kishore, K.
Object Type: Report
System: The UNT Digital Library
Fluid-Rock Characterization and Interactions in NMR Well Logging (open access)

Fluid-Rock Characterization and Interactions in NMR Well Logging

This semi-annual report briefly summarizes the progress since the 1st Annual Report issued September, 2000 and the next annual report. More detailed results will be in the annual reports. The main emphasis on fluid properties was on measurements of the relaxation time and self-diffusion coefficient of ethane and propane. Ethane is similar to methane while propane is more similar to the higher alkanes. The ratio of T1 and T2 is demonstrated to be a function of both viscosity and the NMR frequency. The diffusion-induced T2 in a uniform magnetic gradient was simulated in one dimension to seek improved understanding NMR diffusion in restricted geometry. Analytical solutions can be found for this system if the correct region of validity is used. Estimation of permeability of vuggy carbonates has been problematic because the pore body size does not correlate well with pore throat size. CT scans and CPMG NMR measurements were made on a set of vuggy carbonate rocks.
Date: July 13, 2001
Creator: Hirasaki, George J. & Mohanty, Kishore K.
Object Type: Report
System: The UNT Digital Library
Geochemically Homogeneous Tuffs Host the Potential Nuclear Waste Repository, Yucca Mountain, Nevada (open access)

Geochemically Homogeneous Tuffs Host the Potential Nuclear Waste Repository, Yucca Mountain, Nevada

In evaluating a geological environment for the disposition of nuclear waste, the composition of the host rock is an important parameter in characterizing the natural system and its role as a barrier to migration of radionuclides. Emplacement drifts in a potential nuclear waste repository at Yucca Mountain, Nevada, would be constructed in the lower phenocryst-poor rhyolitic member ({approx}300 m thick) of the Topopah Spring Tuff, a felsic pyroclastic ash flow. The rhyolitic member, composed largely of microcrystalline quartz and alkali feldspar, contains localized secondary minerals including vapor-phase silica polymorphs and feldspar typically lining lithophysal cavities, and low-temperature calcite and opal in cavities and fractures. Chemical analyses of Topopah Spring Tuff samples from outcrops and from core obtained by surface-based drilling have shown that the phenocryst-poor rhyolite member at Yucca Mountain is remarkably uniform in composition both vertically and laterally. To verify this geochemical homogeneity in samples collected directly from the repository block where emplacement drifts would be constructed, major and trace elements were analyzed for core samples obtained from 20 systematically spaced drill holes in a drift constructed across the repository block. Means and standard deviations of selected oxides and elements in weight percent indicate geochemical uniformity among these samples: …
Date: July 13, 2001
Creator: Peterman, Z.E.
Object Type: Report
System: The UNT Digital Library
High-Level Waste Melter Study Report (open access)

High-Level Waste Melter Study Report

At the Hanford Site in Richland, Washington, the path to site cleanup involves vitrification of the majority of the wastes that currently reside in large underground tanks. A Joule-heated glass melter is the equipment of choice for vitrifying the high-level fraction of these wastes. Even though this technology has general national and international acceptance, opportunities may exist to improve or change the technology to reduce the enormous cost of accomplishing the mission of site cleanup. Consequently, the U.S. Department of Energy requested the staff of the Tanks Focus Area to review immobilization technologies, waste forms, and modifications to requirements for solidification of the high-level waste fraction at Hanford to determine what aspects could affect cost reductions with reasonable long-term risk. The results of this study are summarized in this report.
Date: July 13, 2001
Creator: Perez, Joseph M.; Bickford, Dennis F.; Day, Delbert E.; Kim, Dong-Sang; Lambert, Steven L.; Marra, Sharon L. et al.
Object Type: Report
System: The UNT Digital Library
High-Level Waste Melter Study Report (open access)

High-Level Waste Melter Study Report

At the Hanford Site in Richland, Washington, the path to site cleanup involves vitrification of the majority of the wastes that currently reside in large underground tanks. A Joule-heated glass melter is the equipment of choice for vitrifying the high-level fraction of these wastes. Even though this technology has general national and international acceptance, opportunities may exist to improve or change the technology to reduce the enormous cost of accomplishing the mission of site cleanup. Consequently, the U.S. Department of Energy requested the staff of the Tanks Focus Area to review immobilization technologies, waste forms, and modifications to requirements for solidification of the high-level waste fraction at Hanford to determine what aspects could affect cost reductions with reasonable long-term risk. The results of this study are summarized in this report.
Date: July 13, 2001
Creator: Perez, Joseph M., Jr.; Bickford, Dennis F.; Day, Delbert E.; Kim, Dong-Sang; Lambert, Steven L.; Marra, Sharon L. et al.
Object Type: Report
System: The UNT Digital Library
Innovative Fossil Fuel Fired Vitrification Technology for Soil Remediation: Summary Report, Phase 3, 3A/4 (open access)

Innovative Fossil Fuel Fired Vitrification Technology for Soil Remediation: Summary Report, Phase 3, 3A/4

This Summary Report summarizes the progress of Phases 3, 3A and 4 of a waste technology Demonstration Project sponsored under a DOE Environmental Management Research and Development Program and administered by the U.S. Department of Energy National Energy Technology Laboratory-Morgantown (DOE-NETL) for an ''Innovative Fossil Fuel Fired Vitrification Technology for Soil Remediation''. The Summary Reports for Phases 1 and 2 of the Program were previously submitted to DOE. The total scope of Phase 3 was to have included the design, construction and demonstration of Vortec's integrated waste pretreatment and vitrification process for the treatment of low level waste (LLW), TSCA/LLW and mixed low-level waste (MLLW). Due to funding limitations and delays in the project resulting from a law suit filed by an environmental activist and the extended time for DOE to complete an Environmental Assessment for the project, the scope of the project was reduced to completing the design, construction and testing of the front end of the process which consists of the Material Handling and Waste Conditioning (MH/C) Subsystem of the vitrification plant. Activities completed under Phases 3A and 4 addressed completion of the engineering, design and documentation of the Material Handling and Conditioning System such that final procurement …
Date: July 13, 2001
Creator: Hnat, J.; Bartone, L. M. & Pineda, M.
Object Type: Report
System: The UNT Digital Library
Medicaid: Stronger Efforts Needed to Ensure Children's Access to Health Screening Services (open access)

Medicaid: Stronger Efforts Needed to Ensure Children's Access to Health Screening Services

A letter report issued by the General Accounting Office with an abstract that begins "The Early and Periodic Screening, Diagnostic, and Treatment (EPSDT) Program calls for states to provide children and adolescents under age 21 with access to comprehensive, periodic evaluations of health, development, and nutritional status, as well as vision, hearing, and dental services. There is concern that state Medicaid programs are not doing an adequate job of screening children for medical conditions or providing treatment for the children who need it. There is also concern about how these services are faring under managed care plans. This report examines (1) the extent to which children in Medicaid are receiving EPSDT services, (2) efforts that selected states are taking to improve delivery of EPSDT services, particularly within managed care, and (3) federal government efforts to ensure that state Medicaid programs provide covered EPSDT services. GAO found that the extent to which children in Medicaid are receiving EPSDT services are not fully known, but the available evidence indicates that many are not receiving these services. A Department of Health and Human Services Office of Inspector General study found that less than one-half of enrolled children in their sample received any EPSDT …
Date: July 13, 2001
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
National Missile Defense and Alaska (open access)

National Missile Defense and Alaska

None
Date: July 13, 2001
Creator: Hildreth, Steven A.
Object Type: Report
System: The UNT Digital Library
Naval Spent Nuclear Fuel disposal Container System Description Document (open access)

Naval Spent Nuclear Fuel disposal Container System Description Document

The Naval Spent Nuclear Fuel Disposal Container System supports the confinement and isolation of waste within the Engineered Barrier System of the Monitored Geologic Repository (MGR). Disposal containers/waste packages are loaded and sealed in the surface waste handling facilities, transferred underground through the access drifts using a rail mounted transporter, and emplaced in emplacement drifts. The Naval Spent Nuclear Fuel Disposal Container System provides long term confinement of the naval spent nuclear fuel (SNF) placed within the disposal containers, and withstands the loading, transfer, emplacement, and retrieval operations. The Naval Spent Nuclear Fuel Disposal Container System provides containment of waste for a designated period of time and limits radionuclide release thereafter. The waste package maintains the waste in a designated configuration, withstands maximum credible handling and rockfall loads, limits the waste form temperature after emplacement, resists corrosion in the expected handling and repository environments, and provides containment of waste in the event of an accident. Each naval SNF disposal container will hold a single naval SNF canister. There will be approximately 300 naval SNF canisters, composed of long and short canisters. The disposal container will include outer and inner cylinder walls and lids. An exterior label will provide a means …
Date: July 13, 2001
Creator: Pettit, N. E.
Object Type: Report
System: The UNT Digital Library
NEOS server 4.0 administrative guide. (open access)

NEOS server 4.0 administrative guide.

The NEOS Server 4.0 provides a general Internet-based client/server as a link between users and software applications. The administrative guide covers the fundamental principals behind the operation of the NEOS Server, installation and trouble-shooting of the Server software, and implementation details of potential interest to a NEOS Server administrator. The guide also discusses making new software applications available through the Server, including areas of concern to remote solver administrators such as maintaining security, providing usage instructions, and enforcing reasonable restrictions on jobs. The administrative guide is intended both as an introduction to the NEOS Server and as a reference for use when running the Server.
Date: July 13, 2001
Creator: Dolan, E. D.
Object Type: Report
System: The UNT Digital Library
New York Times Co. v. Tasini: The U.S. Supreme Court Affirms “Authorial” Rights in Copyright (open access)

New York Times Co. v. Tasini: The U.S. Supreme Court Affirms “Authorial” Rights in Copyright

This report examines the U.S. Supreme Court’s opinion in New York Times Co. v. Tasini. This case considers whether, under the U.S. Copyright Act, 17 U.S.C. § 201(c), publishers are “privileged” to include the copyrighted articles of freelance authors in an electronic database.
Date: July 13, 2001
Creator: Jeweler, Robin
Object Type: Report
System: The UNT Digital Library
Performance Comparison of GPFS 1.3 and GPFS 1.4 for POSIX and MPI-IO (open access)

Performance Comparison of GPFS 1.3 and GPFS 1.4 for POSIX and MPI-IO

This report by the SIOP observes the effects of recent hardware and software changes for parallel I/O performance to the GPFS parallel file system. The IBM SP machine (frost) has been upgraded from Mohonk with GPFS 1.3 to Mohonk2 with GPFS 1.4. In addition, the Colony switch adapters have been upgraded from Single/Single to Double/Single. The tests discussed here were performed on frost using 60 compute nodes and the GPFS file system using 2 dedicated I/O nodes (servers). The tests performed utilize the POSIX and MPI-IO interfaces to GPFS. The noted system changes to frost have improved both POSIX and MPI-IO peak read performance and have not diminished peak write performance. We note that as the bandwidth of mounted disks is near fully utilized, there was no expectation of significant performance improvement. For POSIX, the best write rates did not change from 550 MB/sec. The read rates improved from 500 MB/sec to 600 MB/sec, however. For MPI-IO, the best write rates did not change from 550 MB/sec. The read rates improved from 470 MB/sec to 570 MB/sec, in line with the improvements observed. The MPI-IO discontiguous test results show that improvement is significant (nearly a factor of 2 beyond 40 …
Date: July 13, 2001
Creator: Hedges, R & Loewe, W
Object Type: Report
System: The UNT Digital Library