A dedicated storage ring for Far-IR coherent synchrotron radiation at the ALS (open access)

A dedicated storage ring for Far-IR coherent synchrotron radiation at the ALS

We present the concepts for a storage ring dedicated to and optimized for the production of stable coherent synchrotron radiation (CSR) over the far-infrared wavelength range from about 200 microns to 1 mm.
Date: May 31, 2002
Creator: Barry, W. C.; Baptist, K. M.; Benjegerdes, R. J.; Biocca, A. K.; Byrd, J. M.; Byrne, W. E. et al.
Object Type: Article
System: The UNT Digital Library
Farm Commodity Legislation: Chronology, 1933-2002 (open access)

Farm Commodity Legislation: Chronology, 1933-2002

This report provides a brief chronology of key commodity support laws since 1933 generally excludes legislation with provisions devoted mainly to disaster-related farm assistance.
Date: May 31, 2002
Creator: Becker, Geoffrey S.
Object Type: Report
System: The UNT Digital Library
Farm Commodity Legislation: Chronology, 1933-2002 (open access)

Farm Commodity Legislation: Chronology, 1933-2002

This report discusses legislation regarding commodities and price supports. Since 1933, Congress has required the U.S. Department of Agriculture (USDA) to administer various price and income support programs for U.S. farmers. Some standing authority for these programs is provided by three permanent laws, from 1938, 1948, and 1949. However, Congress frequently alters the basic provisions of these laws. The omnibus law now guiding farm support (through 2007) is the Farm Security and Rural Investment Act of 2002.
Date: May 31, 2002
Creator: Becker, Geoffrey S.
Object Type: Report
System: The UNT Digital Library
Farm "Counter-Cyclical Assistance" (open access)

Farm "Counter-Cyclical Assistance"

This report discusses recently approved legislation reauthorizing major farm income and commodity price support programs through crop year 2007. This legislation includes new “counter-cyclical assistance” programs for grains, cotton, oilseeds, peanuts, and milk. The intent of counter-cyclical assistance is to provide more government support when farm prices and/or incomes decline, and less support when they improve. In fact, farmers have, for many years, been eligible for various forms of counter-cyclical assistance. At issue has been the need for, and potential impacts of, another counter-cyclical program.
Date: May 31, 2002
Creator: Becker, Geoffrey S. & Womach, Jasper
Object Type: Report
System: The UNT Digital Library
Intelligence Issues for Congress (open access)

Intelligence Issues for Congress

This report discusses intelligence issues for Congress including narcotics trafficking, conflicts between Israel and Palestine, in Iraq, and among the former Yugoslav states, and North Korean missile capabilities. Updated May 31, 2002.
Date: May 31, 2002
Creator: Best, Richard A., Jr.
Object Type: Report
System: The UNT Digital Library
Refugee Assistance in the Foreign Aid Bill: Problems and Prospects (open access)

Refugee Assistance in the Foreign Aid Bill: Problems and Prospects

None
Date: May 31, 2002
Creator: Bite, Vita
Object Type: Report
System: The UNT Digital Library
Responses of Conventional Ring Closures of Drum Type Packages to Regulatory Drop Tests with Application to the 9974/9975 Package (open access)

Responses of Conventional Ring Closures of Drum Type Packages to Regulatory Drop Tests with Application to the 9974/9975 Package

DOT, DOE and NRC Type A and Type B radioactive material (RAM) transport packages routinely use industrial or military specification drums with conventional clamp ring closures as an overpack. Considerable testing has been performed on these type packages over the past 30 years. Observations from test data have resulted in various design changes and recommendations to the standard drum specification and use, enhancing the reliability of the overpack. Recently, performance capability of the 9975 conventional clamp ring closure design was questioned by the Regulatory Authority. This paper highlights the observations of recent 9974 and 9975 package testing that led to redesign of the 9975, replacing the standard clamp ring closure with a bolted ring closure. In the course of this review and redesign effort, 18 package designs and approximately 100 Hypothetical Accident Condition (HAC) drops of various size and weight drum packages were evaluated. A trend was observed with respect to overpack lid failures for packages utilizing conventional ring closure. Based on this trend, a limit on the ratio of the content weight to total package weight was identified, beyond which clamp ring closure failure may be expected.
Date: May 31, 2002
Creator: Blanton, P.S.
Object Type: Article
System: The UNT Digital Library
Quantifying the value that wind power provides as a hedge against volatile natural gas prices (open access)

Quantifying the value that wind power provides as a hedge against volatile natural gas prices

Advocates of renewable energy have long argued that wind power and other renewable technologies can mitigate fuel price risk within a resource portfolio. Such arguments--made with renewed vigor in the wake of unprecedented natural gas price volatility during the winter of 2000/2001--have mostly been qualitative in nature, however, with few attempts to actually quantify the price stability benefit that wind and other renewables provide. This paper attempts to quantify this benefit by equating it with the cost of achieving price stability through other means, particularly gas-based financial derivatives (futures and swaps). We find that over the past two years, natural gas consumers have had to pay a premium of roughly 0.50 cents/kWh over expected spot prices to lock in natural gas prices for the next 10 years. This incremental cost is potentially large enough to tip the scales away from new investments in natural gasfired generation and in favor of investments in wind power and other renewable technologies.
Date: May 31, 2002
Creator: Bolinger, Mark; Wiser, Ryan & Golove, William
Object Type: Article
System: The UNT Digital Library
United Nations Peacekeeping: Issues for Congress (open access)

United Nations Peacekeeping: Issues for Congress

None
Date: May 31, 2002
Creator: Browne, Marjorie Ann
Object Type: Report
System: The UNT Digital Library
Military Transformation: Intelligence, Surveillance and Reconnaissance (open access)

Military Transformation: Intelligence, Surveillance and Reconnaissance

None
Date: May 31, 2002
Creator: Chizek, Judy G
Object Type: Report
System: The UNT Digital Library
HIV/AIDS International Programs: FY2003 Request and FY2002 Spending (open access)

HIV/AIDS International Programs: FY2003 Request and FY2002 Spending

Supplemental Appropriations legislation for FY2002, currently before Congress, could increase spending for international HIV/AIDS programs beyond the amounts currently projected.
Date: May 31, 2002
Creator: Copson, Raymond W.
Object Type: Report
System: The UNT Digital Library
Assistance to Oil and Gas State Agencies and Industry through Continuation of Environmental and Production Data Management and a Water Regulatory Initiative (open access)

Assistance to Oil and Gas State Agencies and Industry through Continuation of Environmental and Production Data Management and a Water Regulatory Initiative

This grant project was a major step toward completion of the Risk Based Data Management System (RBDMS) project. Additionally the project addresses the needs identified during the projects initial phases. By implementing this project, the following outcomes were sought: (1) State regulatory agencies implemented more formalized environmental risk management practices as they pertain to the production of oil and gas, and injection via Class II wells. (2) Enhancement of oil and gas production by implementing a management system supporting the saving of abandoned or idle wells located in areas with a relatively low environmental risk of endangering underground sources of drinking water (USDWs) in a particular state. (3) Verification that protection of USDWs is adequate and additional restrictions of requirements are not necessary in areas with a relatively low environmental risk. (4) Standardization of data and information maintained by state regulatory agencies and decrease the regulatory cost burden on producers operating in multiple states, and (5) Development of a system for electronic data transfer among operators and state regulatory agencies and reduction of overall operator reporting burdens.
Date: May 31, 2002
Creator: Grunewald, Ben; Arthur, Dan; Langhus, Bruce; Gillespie, Tom; Binder, Ben; Warner, Don et al.
Object Type: Report
System: The UNT Digital Library
University reactor sharing program. Final technical report (open access)

University reactor sharing program. Final technical report

A table is given showing the participating institutions, numbers of students and faculty involved, the academic level, and a very brief description of the project or program.
Date: May 31, 2002
Creator: Holm, Richard L.
Object Type: Report
System: The UNT Digital Library
Thermodynamic Modeling of the SRS Evaporators: Part II. The 3H System (open access)

Thermodynamic Modeling of the SRS Evaporators: Part II. The 3H System

Accumulations of two solid phases have formed scale deposits in the Savannah River Site 2H Evaporator system since late 1996. The aluminosilicate scale deposits caused the evaporator pot to become inoperable in October 1999. Accumulations of the diuranate phase have caused criticality concerns in the SRS 2H Evaporator. In order to ensure that similar deposits are not forming in the SRS 3H Evaporator, thermodynamically derived activity diagrams specific to the feeds processed from the 3H Evaporator feed tank (Tank 32) were evaluated.
Date: May 31, 2002
Creator: Jantzen, Carol M.; Laurinat, J. E. & Brown, K. G.
Object Type: Report
System: The UNT Digital Library
Kinetic Alfven Waves at the Magnetopause--Mode Conversion, Transport and Formation of LLBL (open access)

Kinetic Alfven Waves at the Magnetopause--Mode Conversion, Transport and Formation of LLBL

At the magnetopause, large amplitude, low-frequency (ULF), transverse MHD waves are nearly always observed. These waves likely result from mode conversion of compressional MHD waves observed in the magnetosheath to kinetic Alfven waves at the magnetopause where there is a steep gradient in the Alfven velocity [Johnson and Cheng, Geophys. Res. Lett. 24 (1997) 1423]. The mode-conversion process can explain the following wave observations typically found during satellite crossings of the magnetopause: (1) a dramatic change in wave polarization from compressional in the magnetosheath to transverse at the magnetopause, (2) an amplification of wave amplitude at the magnetopause, (3) a change in Poynting flux from cross-field in the magnetosheath to field-aligned at the magnetopause, and (4) a steepening in the wave power spectrum at the magnetopause. We examine magnetic field data from a set of ISEE1, ISEE2, and WIND magnetopause crossings and compare with the predictions of theoretical wave solutions based on the kinetic-fluid model with particular attention to the role of magnetic field rotation across the magnetopause. The results of the study suggest a good qualitative agreement between the observations and the theory of mode conversion to kinetic Alfven waves. Because mode-converted kinetic Alfven waves readily decouple particles from …
Date: May 31, 2002
Creator: Johnson, Jay R. & Cheng, C. Z.
Object Type: Report
System: The UNT Digital Library
Progress in bright ion beams for industry, medicine and fusion at LBNL (open access)

Progress in bright ion beams for industry, medicine and fusion at LBNL

Recent progresses at LBNL in developing ion beams for industry, radiation therapy and inertial fusion applications were discussed. The highlights include ion beam lithography, boron neutron capture therapy (BNCT), and heavy ion fusion (HIF) drivers using multiple linacs.
Date: May 31, 2002
Creator: Kwan, Joe W.
Object Type: Article
System: The UNT Digital Library
Bends and Momentum Dispersion during Final Compression in HeavyIon Fusion Drivers (open access)

Bends and Momentum Dispersion during Final Compression in HeavyIon Fusion Drivers

This report talks about Bends and Momentum Dispersion during Final Compression in HeavyIon Fusion Drivers
Date: May 31, 2002
Creator: Lee, Edward P. & Barnard, John J.
Object Type: Article
System: The UNT Digital Library
High Growth Rate Deposition of Hydrogenated Amorphous Silicon-Germanium Films and Devices Using ECR-PECVD (open access)

High Growth Rate Deposition of Hydrogenated Amorphous Silicon-Germanium Films and Devices Using ECR-PECVD

Hydrogenated amorphous silicon germanium films (a-SiGe:H) and devices have been extensively studied because of the tunable band gap for matching the solar spectrum and mature the fabrication techniques. a-SiGe:H thin film solar cells have great potential for commercial manufacture because of very low cost and adaptability to large-scale manufacturing. Although it has been demonstrated that a-SiGe:H thin films and devices with good quality can be produced successfully, some issues regarding growth chemistry have remained yet unexplored, such as the hydrogen and inert-gas dilution, bombardment effect, and chemical annealing, to name a few. The alloying of the SiGe introduces above an order-of-magnitude higher defect density, which degrades the performance of the a-SiGe:H thin film solar cells. This degradation becomes worse when high growth-rate deposition is required. Preferential attachment of hydrogen to silicon, clustering of Ge and Si, and columnar structure and buried dihydride radicals make the film intolerably bad. The work presented here uses the Electron-Cyclotron-Resonance Plasma-Enhanced Chemical Vapor Deposition (ECR-PECVD) technique to fabricate a-SiGe:H films and devices with high growth rates. Helium gas, together with a small amount of H{sub 2}, was used as the plasma species. Thickness, optical band gap, conductivity, Urbach energy, mobility-lifetime product, I-V curve, and quantum …
Date: May 31, 2002
Creator: Liu, Yong
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Russian Federal Information System for Nuclear Material Control and Accounting: Yesterday, Today and Tomorrow (open access)

The Russian Federal Information System for Nuclear Material Control and Accounting: Yesterday, Today and Tomorrow

Most enterprises in the Russian Federation are not prepared to report to the Russian Federal Nuclear Material Control and Accounting Information System (FIS) by the full function reporting method. The full function reporting method requires reporting inventory listings on a schedule based on nuclear material category, submission of individual inventory change reports, and reconciliation and closeout at the end of each reporting period. Most Russian enterprises do not have automated systems and do not have the resources to develop and implement such systems. Over the last two years, MinAtom put the regulations and national level nuclear material control and accounting (MC&A) software in place to require all enterprises in the Russian Federation to report summarized inventory listings to the FIS in January 2002. Enterprises do not need automated systems to comply with summarized reporting requirements. Along with the approximately 25% of the total Category 1 Material Balance Areas (MBAs) using full function reporting, the addition of this complete summarized inventory makes the FIS a more valuable tool for MinAtom management. The FIS is now poised to complete the work by improving the integrity and reliability of the data through increasing the number of enterprises and MBAs using full function reporting. …
Date: May 31, 2002
Creator: Martyanov, A. A.; Pitel, V. A.; Berchik, V. P.; Kasumova, L. A.; Babcock, R. A.; Kilmartin, W. E. et al.
Object Type: Article
System: The UNT Digital Library
The Integration of Engineering and Architecture: A Perspective on Natural Ventilation for the New San Francisco Federal Building (open access)

The Integration of Engineering and Architecture: A Perspective on Natural Ventilation for the New San Francisco Federal Building

A description of the in-progress design of a new Federal Office Building for San Francisco is used to illustrate a number of issues arising in the design of large, naturally ventilated office buildings. These issues include the need for an integrated approach to design involving the architects, mechanical and structural engineers, lighting designers and specialist simulation modelers. In particular, the use of natural ventilation, and the avoidance of air-conditioning, depends on the high degree of exposed thermal mass made possible by the structural scheme and by the minimization of solar heat gains while maintaining the good daylighting that results from optimization of the fagade. Another issue was the need for a radical change in interior space planning in order to enhance the natural ventilation; all the individual enclosed offices are located along the central spine of each floorplate rather than at the perimeter. The role of integration in deterring the undermining of the design through value engineering is discussed. The comfort criteria for the building were established based on the recent extension to the ASHRAE comfort standard based on the adaptive model for naturally ventilated buildings. The building energy simulation program EnergyPlus was used to compare the performance of different …
Date: May 31, 2002
Creator: McConahey, Erin; Haves, Philip & Christ, Tim
Object Type: Article
System: The UNT Digital Library
Accelerator-Based Surface Chemistry by Combined Time-of-Flight Mass Spectrometry (TOF-MS) and Particle-Induced X-Ray Emission (PIXE) (open access)

Accelerator-Based Surface Chemistry by Combined Time-of-Flight Mass Spectrometry (TOF-MS) and Particle-Induced X-Ray Emission (PIXE)

We describe the development of a new capability for performing microscopic chemical analysis in the near surface of a sample. The technology uses a focused high-energy ion beam from an accelerator to cause characteristic elemental x-rays to be emitted and, simultaneously, molecules and fragments to be desorbed from the surface of the sample. Spectroscopic analysis of the fluoresced x-rays provides quantitative trace element information of the sample volume probed by the beam. The elemental data are subsequently used to identify peaks in the mass analysis of the desorbed species, thereby providing a detailed description of the local surface chemistry. High-resolution (micron-scale) chemical imaging is possible by scanning the beam over the sample.
Date: May 31, 2002
Creator: Morse, D. H.; Grant, P. G.; Antolak, A. J.; Sproch, N. & Fernando, Q.
Object Type: Article
System: The UNT Digital Library
Development and calibration of the shielded measurement system for fissile contents measurements on irradiated nuclear fuel in dry storage. (open access)

Development and calibration of the shielded measurement system for fissile contents measurements on irradiated nuclear fuel in dry storage.

In recent years there has been a trend towards storage of Irradiated Nuclear Fuel (INF) in dry conditions rather than in underwater environments. At the same time, the Department of Energy (DOE) has begun encouraging custodians of INF to perform measurements on INF for which no recent fissile contents measurement data exists. INF, in the form of spent fuel from Experimental Breeder Reactor 2 (EBR-II), has been stored in close-fitting, dry underground storage locations at the Radioactive Scrap and Waste Facility (RSWF) at Argonne National Laboratory-West (ANL-W) for many years. In Fiscal Year 2000, funding was obtained from the DOE Office of Safeguards and Security Technology Development Program to develop and prepare for deployment a Shielded Measurement System (SMS) to perform fissile content measurements on INF stored in the RSWF. The SMS is equipped to lift an INF item out of its storage location, perform scanning neutron coincidence and high-resolution gamma-ray measurements, and restore the item to its storage location. The neutron and gamma-ray measurement results are compared to predictions based on isotope depletion and Monte Carlo neutral-particle transport models to provide confirmation of the accuracy of the models and hence of the fissile material contents of the item as …
Date: May 31, 2002
Creator: Mosby, W. R. & Jensen, B. A.
Object Type: Article
System: The UNT Digital Library
Demonstration of electronic pattern switching and 10x pattern demagnification in a maskless micro-ion beam reduction lithography system (open access)

Demonstration of electronic pattern switching and 10x pattern demagnification in a maskless micro-ion beam reduction lithography system

A proof-of-principle ion projection lithography (IPL) system called Maskless Micro-ion beam Reduction Lithography (MMRL) has been developed and tested at the Lawrence Berkeley National Laboratory (LBNL) for future integrated circuits (ICs) manufacturing and thin film media patterning [1]. This MMRL system is aimed at completely eliminating the first stage of the conventional IPL system [2] that contains the complicated beam optics design in front of the stencil mask and the mask itself. It consists of a multicusp RF plasma generator, a multi-beamlet pattern generator, and an all-electrostatic ion optical column. Results from ion beam exposures on PMMA and Shipley UVII-HS resists using 75 keV H+ are presented in this paper. Proof-of-principle electronic pattern switching together with 10x reduction ion optics (using a pattern generator made of nine 50-{micro}m switchable apertures) has been performed and is reported in this paper. In addition, the fabrication of a micro-fabricated pattern generator [3] on an SOI membrane is also presented.
Date: May 31, 2002
Creator: Ngo, V. V.; Akker, B.; Leung, K. N.; Noh, I.; Scott, K. L. & Wilde, S.
Object Type: Article
System: The UNT Digital Library
Groundwater Protection Management Program Description. (open access)

Groundwater Protection Management Program Description.

THE DEPARTMENT OF ENERGY ORDER 5400.1, GENERAL ENVIRONMENTAL PROTECTION PROGRAM, REQUIRES THE DEVELOPMENT AND IMPLEMENTATION OF A GROUNDWATER PROTECTION PROGRAM. THE BNL GROUNDWATER PROTECTION MANAGEMENT PROGRAM DESCRIPTION PROVIDES AN OVERVIEW OF HOW THE LABORATORY ENSURES THAT PLANS FOR GROUNDWATER PROTECTION, MONITORING, AND RESTORATION ARE FULLY DEFINED, INTEGRATED, AND MANAGED IN A COST EFFECTIVE MANNER THAT IS CONSISTENT WITH FEDERAL, STATE, AND LOCAL REGULATIONS.
Date: May 31, 2002
Creator: Paquette, D. E.; Bennett, D. B.; Dorsch, W. R.; Goode, G. A.; Lee, R. J.; Klaus, K. et al.
Object Type: Report
System: The UNT Digital Library