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Structure and spectroscopy of transcurium nuclei.

Description: The stability of the superheavy elements depends on the shell corrections which are governed by the single-particle spectra. Ideally one would like to experimentally determine the single-particle levels in the superheavy nuclei but the production of only a few atoms of these nuclides precludes such measurements. One therefore has to identify single-particle levels in the heaviest nuclei which are available in at least nanoCurie amounts. They have studied the structure of such heavy nuclei in th… more
Date: November 9, 2001
Creator: Ahmad, I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Computer Modeling of Saltstone Landfills by Intera Environmental Consultants

Description: This report summaries the computer modeling studies and how the results of these studies were used to estimate contaminant releases to the groundwater. These modeling studies were used to improve saltstone landfill designs and are the basis for the current reference design. With the reference landfill design, EPA Drinking Water Standards can be met for all chemicals and radionuclides contained in Savannah River Plant waste salts.
Date: August 9, 2001
Creator: Albenesius, E.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical aspects of actinides in the geosphere: towards a rational nuclear materials management

Description: A complete understanding of actinide interactions in the geosphere is paramount for developing a rational Nuclear and Environmental Materials Management Policy. One of the key challenges towards understanding the fate and transport of actinides is determining their speciation (i.e., oxidation state and structure). Since an element's speciation directly dictates physical properties such as toxicity and solubility, this information is critical for evaluating and controlling the evolution of an ac… more
Date: February 9, 2001
Creator: Allen, P & Sylwester, E
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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House and Senate Chaplains

Description: This report discusses the two chaplains, one in the House, the other in the Senate, who are the official clergy of Congress. At the beginning of each Congress, the House chaplain is elected for a 2-year term. The Senate chaplain does not have to be reelected at the beginning of a new Congress. There have been 61 Senate chaplains and 59 House chaplains.
Date: October 9, 2001
Creator: Amer, Mildred
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Determination of Phase Equilibria in the System H{sub 2}O-CO{sub 2}-NaCl at 0.5 Kb from 500 to 800C

Description: An understanding of activity-composition (a/X) relations and phase equilibria for halite-bearing, mixed-species supercritical fluids is critically important to many geological and industrial applications. The authors have performed experiments on the phase equilibria of H{sub 2}O-CO{sub 2}-NaCl fluids from 500 C to 800 C at 500 bars, conditions of significant importance in studies of magma-hydrothermal systems, geothermal reservoirs and some ore deposits, to obtain highly accurate and precise d… more
Date: January 9, 2001
Creator: Anovitz, L.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Temperature management of centrifugal contactor for caustic-side solvent extraction of cesium from tank waste.

Description: A 32-stage centrifugal contactor underwent proof-of-concept testing for its potential use in caustic-side solvent extraction for removal of cesium from radioactive waste now stored in underground tanks at the Savannah River Site. This contactor met the performance goals. Maintaining this performance, however, depends on adequate temperature management. Subsequent calculations and measurements determined the effect of several sources of heat on the temperature of the liquid inside the contactor … more
Date: July 9, 2001
Creator: Arafat, H. A. & Leonard, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gravitino Warm Dark Matter with Entropy Production

Description: Gravitinos with a mass in the keV range are an interesting candidate for warm dark matter. Recent measurements of the matter density of the universe and of cosmic structures at the dwarf galaxy scale rule out the simplest gravitino models with thermal freeze-out. We construct a model where the decay of the messenger particles that transmit the supersymmetry breaking to the observable sector generates the required entropy to dilute the gravitino relic density by the required factor of a few to c… more
Date: August 9, 2001
Creator: Baltz, Edward A. & Murayama, Hitoshi
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Agriculture: Previewing the 2002 Farm Bill

Description: This report discusses what a farm bill is and the process of renewing one every year. This report specifically covers the farm bill for 2002 and the issues that come with it. Moreover, the report highlights the importance of exports within the U.S. agricultural economy and how this is a key interest in the renewal of farm bills.
Date: April 9, 2001
Creator: Becker, Geoffrey S.; Chite, Ralph M.; Jones, Jean Y.; Rawson, Jean M.; Womach, Jasper; Zinn, Jeffrey A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determining How Magnetic Helicity Injection Really Works

Description: OAK-B135 The goal of the Caltech program is to determine how helicity injection works by investigating the actual dynamics and topological evolution associated with magnetic relaxation. A new coaxial helicity injection source has been constructed and brought into operation. The key feature of this source is that it has maximum geometric simplicity. Besides being important for fusion research, this work also has astrophysical implications. Photos obtained using high-speed cameras show a clear se… more
Date: October 9, 2001
Creator: Bellan, Paul M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Design and measurements of a deflecting mode cavity for an RF separator

Description: The Fermilab Main Injector can produce intense 120 GeV/c proton beams for fixed target experimentation. Two deflecting mode RF systems can be used to separate charged kaons from a momentum selected secondary beam, consisting of pions, kaons and protons, using a time of flight method. We present the RF design of a 3.9 GHz superconducting cavity which operates in the deflecting (TM110) pi-mode and the dependence of the RF parameters on the cavity shape, as determined with finite difference calcul… more
Date: July 9, 2001
Creator: Bellantoni, Leo
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Some Nonlinear Reconstruction Algorithms for Electrical Impedance Tomography

Description: An impedance camera [Henderson and Webster, 1978; Dines and Lytle, 1981]--or what is now more commonly called electrical impedance tomography--attempts to image the electrical impedance (or just the conductivity) distribution inside a body using electrical measurements on its boundary. The method has been used successfully in both biomedical [Brown, 1983; Barber and Brown, 1986; J. C. Newell, D. G. Gisser, and D. Isaacson, 1988; Webster, 1990] and geophysical applications [Wexler, Fry, and Neur… more
Date: March 9, 2001
Creator: Berger, E. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Treatment of Water in Nuclear Fuel Storage Basins to Control Radioactivity Release

Description: Visibility and radioactivity control in the fuel component storage and disassembly basins at the Savannah River Plant are maintained with a newly developed purification system. Experimental work was performed to develop the application of sand filters to operate at high flow rates with an effluent turbidity below 0.1 JTU squared. Filtration efficiency of SRP sand filters is dependent on the characteristics of the solids in the feed water and the degree to which filterability can be improved by … more
Date: March 9, 2001
Creator: Bertsche, E.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Intelligence Issues for Congress

Description: 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 November 9, 2001.
Date: November 9, 2001
Creator: Best, Richard A., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Long-Term Cathodoluminescent Characterization of Thin-Film Oxide Phosphors in a Wide Range of Electron Excitation Densities

Description: Long-term processes of cathodoluminescence degradation of thin film phosphors Zn{sub 2}SiO{sub 4}:Ti and Zn{sub 2}GeO{sub 4}:Mn were investigated in a wide range of e-beam energies, current and power densities. The time dependencies describing decreasing of emission intensity have been found. At high-level densities of e-beam irradiation the specific behavior of long-term degradation processes was observed, which is characteristic with rapid degradation at initial stage and slow consequent decr… more
Date: April 9, 2001
Creator: Bondar, V D; Felter, T E; Hunt, C E; Dubov, Y G & Chakhovskoy, A G
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Compressional and Shear Wave Velocities for Artificial Granular Media Under Simulated Near Surface Conditions

Description: Laboratory ultrasonic experiments were made on artificial soil samples in order to observe the effects of slight overburden, sand/clay ratio and pore fluid saturation on compressional and shear wave velocities. Up to several meters of overburden were simulated by applying low uniaxial stress of about 0.1 MPa to a restrained sample. Samples were fabricated from Ottawa sand mixed with a swelling clay (Wyoming bentonite). The amount of clay added was 1 to 40 percent by mass. Most measurements were… more
Date: September 9, 2001
Creator: Bonner, B. P.; Berge, P. A. & Wildenschild, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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