Area Monitoring Dosimeter Program for the Pacific Northwest National Laboratory: Results for CY 2000 (open access)

Area Monitoring Dosimeter Program for the Pacific Northwest National Laboratory: Results for CY 2000

Pacific Northwest National Laboratory (PNNL) established an area monitoring dosimeter program in accordance with Article 514 of the Department of Energy (DOE) Radiological Control Manual (RCM) in January 1993. This program is to minimize the number of areas requiring issuance of personnel dosimeters and to demonstrate that doses outside Radiological Buffer Areas are negligible. In accordance with 10 CFR Part 835.402 (a) (1)-(4) and Article 511.1 of the DOE Standard Radiological Control, personnel dosimetry shall be provided to (1) radiological workers who are likely to receive at least 100 mrem annually, and (2) declared pregnant workers, minors, and members of the public who are likely to receive at least 50 mrem annually. Program results for calendar years 1993-2000 confirm that personnel dosimetry is not needed for individuals located in areas monitored by the program.
Date: July 5, 2001
Creator: Bivins, Steven R & Stoetzel, Gregory A
Object Type: Report
System: The UNT Digital Library
Area Monitoring Dosimeter Program for the Pacific Northwest National Laboratory: Results for CY 2000 (open access)

Area Monitoring Dosimeter Program for the Pacific Northwest National Laboratory: Results for CY 2000

Pacific Northwest National Laboratory (PNNL) established an area monitoring dosimeter program in accordance with Article 514 of the Department of Energy (DOE) Radiological Control Manual (RCM) in January 1993. This program is to minimize the number of areas requiring issuance of personnel dosimeters and to demonstrate that doses outside Radiological Buffer Areas are negligible. In accordance with 10 CFR Part 835.402 (a) (1)-(4) and Article 511.1 of the DOE Standard Radiological Control, personnel dosimetry shall be provided to 1) radiological workers who are likely to receive at least 100 mrem annually, and 2) declared pregnant workers, minors, and members of the public who are likely to receive at least 50 mrem annually. Program results for calendar years 1993-2000 confirm that personnel dosimetry is not needed for individuals located in areas monitored by the program.
Date: July 5, 2001
Creator: Bivins, Steven R. & Stoetzel, Gregory A.
Object Type: Report
System: The UNT Digital Library
Campaign Finance Bills in the 107th Congress: Comparison of S. 27 (McCain-Feingold), H.R. 2356 (Shays-Meehan), H.R. 2360 (Ney-Wynn), and Current Law (open access)

Campaign Finance Bills in the 107th Congress: Comparison of S. 27 (McCain-Feingold), H.R. 2356 (Shays-Meehan), H.R. 2360 (Ney-Wynn), and Current Law

This report summarizes and compares three major campaign finance reform bills before the 107th Congress and current law (in most cases, the Federal Election Campaign Act, or FECA, 2 U.S.C. § 431 et seq.).
Date: July 5, 2001
Creator: Cantor, Joseph E. & Whitaker, L. Paige
Object Type: Report
System: The UNT Digital Library
Cavitational Hydrothermal Oxidation: A New Remediation Process - Final Report (open access)

Cavitational Hydrothermal Oxidation: A New Remediation Process - Final Report

During the past year, we have continued to make substantial scientific progress on our understanding of cavitation phenomena in aqueous media and applications of cavitation to remediation processes. Our efforts have focused on three separate areas: sonoluminescence as a probe of conditions created during cavitational collapse in aqueous media, the use of cavitation for remediation of contaminated water, and an addition of the use of ultrasound in the synthesis of novel heterogeneous catalysts for hydrodehalogenation of halocarbons under mild conditions.
Date: July 5, 2001
Creator: Suslick, K. S.
Object Type: Report
System: The UNT Digital Library
Colombia: Plan Colombia Legislation and Assistance (FY2000-FY2001) (open access)

Colombia: Plan Colombia Legislation and Assistance (FY2000-FY2001)

This report provides an overview of U.S. assistance before the Plan Colombia proposal, describes the Clinton Administration Plan Colombia proposal, and tracks Congressional action on it. It also covers the Bush Administration’s Andean Regional Initiative (ARI), which incorporated the Bush Administration’s Andean Counterdrug Initiative (ACI). Table 3 provides a breakdown of the ARI by country, purpose, and account. Table 1 provides an overview of U.S. assistance from FY1999-FY2001, and Table 2 provides an overview of Plan Colombia funding for Colombia and the Status of the commitment of funds provided in the State Department sections of P.L. 106-246, as of the spring of 2001. Tables 4 and 5 compare in detail the Clinton Administration’s Plan Colombia proposal with House, Senate, and conference action on it, and Table 6 charts U.S. assistance from FY1989-FY1998.
Date: July 5, 2001
Creator: Serafino, Nina M.
Object Type: Report
System: The UNT Digital Library
Comments on Obligations Incurred by TRICARE Management Activity (open access)

Comments on Obligations Incurred by TRICARE Management Activity

Other written product issued by the General Accounting Office with an abstract that begins "This report provides information on the legal requirements for recognizing and recording obligations under the Defense Health Program (DHP), specifically focusing on (1) the legal basis for obligations incurred by TRICARE Management Activity for, among other services, medical services provided directly by the Department of Defense (DOD) to beneficiaries as well as medical services provided by civilian contractors who subsequently bill DHP for those services, (2) the legal basis for obligations for costs of change orders or other negotiated settlements, and (3) whether the Antideficiency Act applies to DHP obligations and expenditures. GAO held that (1) DOD 's practices in obligating funds are consistent with federal regulations, (2) DOD should record obligations for change orders against the appropriation current at the time the services are rendered, and (3) DOD may enter into obligations in excess of available resources, but it must obtain appropriations sufficient to liquidate those obligations."
Date: July 5, 2001
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Defense Budget: Need to Better Inform Congress on Funding for Army Division Training (open access)

Defense Budget: Need to Better Inform Congress on Funding for Army Division Training

A letter report issued by the General Accounting Office with an abstract that begins "Congress has expressed concern about the extent to which the Department of Defense has moved funds that directly affect military readiness, such as those that finance training, to pay for other subactivities within its operation and maintenance (O&M) account, such as real property maintenance and base operations. This report reviews the (1) Army's obligation of O&M division training funds and (2) readiness of the Army's divisions. GAO found that the Army continued to use division training funds for purposes other than training during fiscal year 2000. However, the reduced funding did not interfere with the Army's planned training events or exercises. The Army's tank units also reported that, despite the reduced funding and their failure to meet their tank mileage performance goal, their readiness remained high. Specifically, many tank units reported that they could be fully trained for their wartime mission within a short time period. Units that reported that they would need more time to become fully trained generally cited personnel issues rather than the lack of training funds as the reason. Even so, starting in fiscal year 2001, the Army has taken action to …
Date: July 5, 2001
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Development of Components for Wavelength Division Multiplexing Over Parallel Optical Interconnects (open access)

Development of Components for Wavelength Division Multiplexing Over Parallel Optical Interconnects

Parallel optical interconnects based on multimode fiber ribbon cables are emerging as a robust, high-performance data link technology that enhances throughput by using parallel arrays of fibers. While this technology has primarily been implemented as single wavelength point-to-point links, it can be significantly enhanced by wavelength division multiplexing (WDM). WDM enables both increased point-to-point bandwidth as well as more complex interconnect topologies and routing approaches that are particularly attractive for massively parallel processing (MPP) systems. Exploiting the advantages of WDM interconnects requires multi-wavelength sources, a low loss routing fabric, and small footprint wavelength selective filter modules. The Lambda-connect project ({gamma}- Connect) at Lawrence Livermore National Laboratory is a technology development and proof-of-principle demonstration of the enabling hardware for WDM parallel optical interconnects for use in massively parallel processing systems and other high-performance data link applications. This dissertation demonstrates several key system components and technologies for {gamma}-Connect.
Date: July 5, 2001
Creator: Patel, R
Object Type: Report
System: The UNT Digital Library
Direct Measurement of CO2 Fluxes in Marine Whitings (open access)

Direct Measurement of CO2 Fluxes in Marine Whitings

Clean, affordable energy is a requisite for the United States in the 21st Century Scientists continue to debate over whether increases in CO{sub 2} emissions to the atmosphere from anthropogenic sources, including electricity generation, transportation and building systems may be altering the Earth's climate. While global climate change continues to be debated, it is likely that significant cuts in net CO{sub 2} emissions will be mandated over the next 50-100 years. To this end, a number of viable means of CO{sub 2} sequestration need to be identified and implemented. One potential mechanism for CO{sub 2} sequestration is the use of naturally-occurring biological processes. Biosequestration of CO{sub 2} remains one of the most poorly understood processes, yet environmentally safe means for trapping and storing CO{sub 2}. Our investigation focused on the biogeochemical cycling of carbon in microbial precipitations of CaCO{sub 3}. Specifically, we investigated modern whitings (microbially-induced precipitates of the stable mineral calcium carbonate) as a potential, natural mechanism for CO{sub 2} abatement. This process is driven by photosynthetic metabolism of cyanobacteria and microalgae. We analyzed net air: sea CO{sub 2} fluxes, net calcification and photosynthetic rates in whitings. Both field and laboratory investigations have demonstrated that atmospheric CO{sub 2}decreases during …
Date: July 5, 2001
Creator: Robbins, Lisa L. & Yates, Kimberly K.
Object Type: Report
System: The UNT Digital Library
Effects of 2D and Finite Density Fluctuations on O-X Correlation Reflectometry (open access)

Effects of 2D and Finite Density Fluctuations on O-X Correlation Reflectometry

The correlation between O-mode and X-mode reflectometer signals is studied with a 1D and 2D reflectometer model in order to explore its feasibilities as a q-profile diagnostic. It was found that 2D effects and finite fluctuation levels both decrease the O-X correlation. At very low fluctuation levels, which are usually present in the plasma core, there is good possibility to determine the local magnetic field strength and use that as a constraint for the equilibrium reconstruction.
Date: July 5, 2001
Creator: Kramer, G. J.; Nazikian, R. & Valeo, E.
Object Type: Report
System: The UNT Digital Library
Freight Railroad Regulation: Surface Transportation Board's Oversight Could Benefit From Evidence Better Identifying How Mergers Affect Rates (open access)

Freight Railroad Regulation: Surface Transportation Board's Oversight Could Benefit From Evidence Better Identifying How Mergers Affect Rates

A letter report issued by the General Accounting Office with an abstract that begins "Railroads have been a primary mode of freight transportation for many years, especially for bulk commodities such as coal and grain. Over the last 25 years, the freight railroad industry has undergone substantial consolidation largely to reduce costs and increase efficiency and competitiveness. Some companies that rely on rail shipments are concerned that the mergers have reduced railroad competition and led to higher rail rates and poorer service. This report reviews (1) the role the Surface Transportation Board plays in reviewing proposed railroad mergers and overseeing mergers that have been approved and how post-merger oversight is conducted, (2) how the Board mitigates potential harm to competition, and (3) how the Union Pacific/Southern Pacific merger affected rail rates in selected geographic areas. GAO found that the Board reviews railroad merger proposals and approves those that are consistent with the public interest, ensures that any potential merger-related harm to competition is mitigated to preserve competition, and oversees mergers that have been approved. The Board imposes conditions on mergers to mitigate potential harm to competition. The Board also focuses on the overall direction and magnitude of rate changes when …
Date: July 5, 2001
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
NSTX Diagnostics for Fusion Plasma Science Studies (open access)

NSTX Diagnostics for Fusion Plasma Science Studies

This paper will discuss how plasma science issues are addressed by the diagnostics for the National Spherical Torus Experiment (NSTX), the newest large-scale machine in the magnetic confinement fusion (MCF) program. The development of new schemes for plasma confinement involves the interplay of experimental results and theoretical interpretations. A fundamental requirement, for example, is a determination of the equilibria for these configurations. For MCF, this is well established in the solutions of the Grad-Shafranov equation. While it is simple to state its basis in the balance between the kinetic and magnetic pressures, what they are as functions of space and time are often not easy to obtain. Quantities like the plasma pressure and current density are not directly measurable. They are derived from data that are themselves complex products of more basic parameters. The same difficulties apply to the understanding of plasma instabilities. Not only are the needs for spatial and temporal resolution more stringent, but the wave parameters which characterize the instabilities are difficult to resolve. We will show how solutions to the problems of diagnostic design on NSTX, and the physics insight the data analysis provides, benefits both NSTX and the broader scientific community.
Date: July 5, 2001
Creator: Kaita, R.; Johnson, D.; Roquemore, L.; Bitter, M.; Levinton, F.; Paoletti, F. et al.
Object Type: Report
System: The UNT Digital Library
Small Hydropower Systems: Energy Efficiency and Renewable Energy Clearinghouse (open access)

Small Hydropower Systems: Energy Efficiency and Renewable Energy Clearinghouse

This fact sheet introduces consumers to small hydropower systems, and includes information on how the systems work and how to assess a stream site for hydropower suitability.
Date: July 5, 2001
Creator: Nachman-Hunt, N.
Object Type: Book
System: The UNT Digital Library
Stability and Confinement Properties of Auxiliary Heated NSTX Discharges (open access)

Stability and Confinement Properties of Auxiliary Heated NSTX Discharges

The National Spherical Torus Experiment (NSTX) is a spherical tokamak with nominal plasma major radius R(subscript ''0'') = 0.85 m, minor radius a = 0.66 m, and aspect ratio A > 1.28. Typical discharge parameters are plasma current I (subscript ''p'') = 0.7-1.4 MA, toroidal magnetic field B(subscript ''t0'') = 0.25-0.45 Tesla at major radius R(subscript ''0''), elongation = 1.7-2.2, triangularity 0.3-0.5, line-average electron density = 2-5 x 10(superscript ''19'') m(superscript ''-3''), electron temperature T(subscript ''e'')(0) = 0.5-1.5 keV, and ion temperature T(subscript ''i'')(0) = 0.5-2 keV. The NSTX auxiliary heating systems can routinely deliver 4.5 MW of 80-keV deuterium neutral beams and 3 MW of 30-MHz high-harmonic fast-wave power. Kinetic profile diagnostics presently include a 10-channel, 30-Hz multipulse Thomson scattering system (MPTS), a 17-channel charge-exchange recombination spectroscopy (CHERS) system, a 48-chord ultra-soft X-ray (USXR) array, and a 15-chord bolometry array. Initial experiments utilizing auxiliary heating on NSTX have focused on MHD stability limits, confinement trends, studying H-mode characteristics, and performing initial power balance calculations.
Date: July 5, 2001
Creator: Menard, J. E.; Bell, R. E.; Bourdelle, C.; Darrow, D. S.; Fredrickson, E. D.; Gates, D. A. et al.
Object Type: Report
System: The UNT Digital Library
Super Energy Savings Performance Contracts: Federal Energy Management Program (FEMP) Program Overview (revision) (open access)

Super Energy Savings Performance Contracts: Federal Energy Management Program (FEMP) Program Overview (revision)

This four-page publication describes the U.S. Department of Energy's (DOE's) streamlined energy savings performance contracting, or ''Super ESPC,'' process, which is managed by DOE's Federal Energy Management Program (FEMP). Under a Super ESPC, a qualifying energy service company (ESCO) from the private sector pays for energy efficiency improvements or advanced renewable energy technologies (e.g., photovoltaic systems, wind turbines, or geothermal heat pumps, among others) for a facility of a government agency. The ESCO is then repaid over time from the agency's resulting energy cost savings. Delivery orders under these contracts specify the level of performance (energy savings) and the repayment schedule; the contract term can be up to 25 years, although many Super ESPCs are for about 10 years or less.
Date: July 5, 2001
Creator: Pitchford, P.
Object Type: Book
System: The UNT Digital Library
Two-dimensional Simulations of Correlation Reflectometry in Fusion Plasmas (open access)

Two-dimensional Simulations of Correlation Reflectometry in Fusion Plasmas

A two-dimensional wave propagation code, developed specifically to simulate correlation reflectometry in large-scale fusion plasmas is described. The code makes use of separate computational methods in the vacuum, underdense and reflection regions of the plasma in order to obtain the high computational efficiency necessary for correlation analysis. Simulations of Tokamak Fusion Test Reactor (TFTR) plasma with internal transport barriers are presented and compared with one-dimensional full-wave simulations. It is shown that the two-dimensional simulations are remarkably similar to the results of the one-dimensional full-wave analysis for a wide range of turbulent correlation lengths. Implications for the interpretation of correlation reflectometer measurements in fusion plasma are discussed.
Date: July 5, 2001
Creator: Valeo, E. J.; Kramer, G. J. & Nazikian, R.
Object Type: Report
System: The UNT Digital Library
Use of Optically Stimulated Luminescence Imaging Plates and Reader for Arms Control Applications (open access)

Use of Optically Stimulated Luminescence Imaging Plates and Reader for Arms Control Applications

Optically Stimulated Luminescence (OSL) technology has been pioneered at the Pacific Northwest National Laboratory (PNNL) for applications in personnel radiation dosimetry and commercially has become highly successful in replacing older technologies such as Thermoluminescence Dosimeters (TLDs) and film. OSL phosphors are used to measure radiation exposure by illuminating them with light after ionizing radiation exposure and measuring the amount of light emitted by the OSL phosphor. By using a two-dimensional plate of OSL material and raster scanning a light beam across the OSL plate a radiation pattern or image can be measured. The Arms Control community requires an electrons-free medium to measure the attributes of extent and symmetry on Pu pits in storage containers. OSL technology, used in the two-dimensional imaging mode, provides a means to measure these attributes with exposure times on the order of an hour. A special OSL reader has been built by PNNL to measure OSL imaging plates with a size of 20 cm by 30 cm. The reader uses 10 light emitting diode clusters with 10 corresponding photomultiplier tubes to measure an OSL imaging plate in less than 5 minutes. The resolution of each of the 10 measurement assemblies is 1 square-centimeter. A collimator assembly …
Date: July 5, 2001
Creator: Miller, Steven D.; Tomeraasen, Paul L.; Burghard, Brion J. & Traub, Richard J.
Object Type: Report
System: The UNT Digital Library