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Geohydrology of Bandelier Tuff

Description: The Los Alamos National Laboratory has been disposing of radioactive wastes since 1944. Environmental studies and monitoring for radioactive contamination started concurrently. In this report, only two mechanisms and rates by which the radionuclides can enter the environment are studied in detail: subsurface transport of radionuclides by migrating water, and diffusion of tritiated water (HTO) in the vapor phase. The report also includes a section concerning the influence of moisture on shear st… more
Date: October 1, 1981
Creator: Abeele, M. V.; Wheeler, M. L. & Burton, B. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Framework for Evaluating the Effectiveness of Nuclear-Safeguards Systems. [Aggregated Systems Model (ASM)]

Description: This paper describes an analytical tool for evaluating the effectiveness of safeguards that protect special nuclear material (SNM). The tool quantifies the effectiveness using several measures, including probabilities and expected times to detect and respond to malevolent attempts against the facility. These measures are computed for a spectrum of threats involving outsiders, insiders, collusion, falsification, and deceit. Overall system effectiveness is judged using performance indices aggrega… more
Date: October 20, 1981
Creator: Al-Ayat, R. A. & Judd, B. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Studies of materials exhibiting low tritium permeation rates

Description: Tritium permeation is being measured through potential barriers, such as aluminum, copper, various oxides and glasses. The temperature range of the experiments is 300 to 500 K (25 to 200/sup 0/C) to compare such results to extrapolated high temperature data. A physical model is presented that accounts for the non-linear permeability seen at these low temperatures, where surfaces predominate.
Date: October 1, 1981
Creator: Alire, R. M.; Barry, P. E.; Steward, S. A. & Stump, R. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analytical and numerical calculations of field-reversed theta-pinch equilibria based on a generalized Hill's vortex model

Description: We have been investigating methods for numerically extending the analytic solutions of field reversed theta pinch equilibria so that the results may be used in various stability and dynamics studies. We have used generalizations of elliptical Hill's vortex equilibria which accomodate separatrices with more rectangular shapes and which allow plasma to exist outside the separatrix. Although the equilibria are specified analytically inside the plasma surface, numerical techniques are required to g… more
Date: October 1, 1981
Creator: Anderson, D. V.; Hammer, J. H. & Barnes, D. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ethanol production via fungal decomposition and fermentation of biomass. Phase II (FY 1981) annual progress report

Description: This program has as its main goal the isolation and development of Fusarium strains that can efficiently and economically decompose plant polysaccharides to pentoses and hexoses and ferment them to ethanol for fuel purposes. During Phase II (FY 1981) of this program, more than 800 new Fusarium isolates were isolated and screened. All showed cellulolytic activity. The Fusarium mutant ANL 3-72181 (derived after uv exposure of ANL 22 isolate) produced 2.45 iu cellulase after 14 days. This cellulas… more
Date: October 1, 1981
Creator: Antonopoulos, A. A. & Wene, E. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geochemical anomalies near the Eocene-Oligocene and Permian-Triassic boundaries

Description: Evidence is presented to support the theory that several mass extinctions, i.e., those that define the Permian-Triassic boundary, the Cretaceous-Tertiary boundary, and the Eocene-1 Oligocene boundary, were caused by impact on the earth of extraterrestrial objects having the composition of carbonaceous chondrites and diameters of about 10 km. The evidence consists of anomalously high concentrations of iridium and other siderophile elements at the stratigraphic levels defining the extinctions. (A… more
Date: October 1, 1981
Creator: Asaro, F.; Alvarez, L.W.; Alvarez, W. & Michel, H.V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Constraints on the atmospheres of Type I supernovae

Description: The Ca II absorption lines observed in the late time optical spectra of Type I supernovae are analyzed in the context of the /sup 56/Ni model. The analysis indicates that a metal rich atmosphere of mass approx. 0.2 M/sub solar mass/ surrounds the /sup 56/Ni core. This result is consistent with properties of the atmosphere derived from spectra near maximum light.
Date: October 19, 1981
Creator: Axelrod, T.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Parametric study of tornado-type wind-energy systems

Description: The tornado-type wind energy system uses the pressure drop created by an intense vortex. The vortex is generated in a tower mounted at the turbine exit. The tower serves as a low pressure exhaust for the turbine. In a previous work, the author provided a numerical solution, using the two-equation (k-epsilon) turbulence model, of the tower flow with a uniform wind flow. Results compared favorably with measured values of pressure and showed a turbine diameter of approx. 0.4 times that of the towe… more
Date: October 1, 1981
Creator: Ayad, S.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Heavy-ion inertial fusion: initial survey of target gain versus ion-beam parameters

Description: Inertial-fusion targets have been designed for use with heavy-ion accelerators as drivers in fusion energy power plants. We have made an initial survey of target gain versus beam energy, power, focal radius, and ion range. This provides input for understanding the trade-offs among accelerator designs.
Date: October 26, 1981
Creator: Bangerter, R.O.; Mark, J.W.K. & Thiessen, A.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Two-photon physics

Description: A new experimental frontier has recently been opened to the study of two photon processes. The first results of many aspects of these reactions are being presented at this conference. In contrast, the theoretical development of research ito two photon processes has a much longer history. This talk reviews the many different theoretical ideas which provide a detailed framework for our understanding of two photon processes.
Date: October 1, 1981
Creator: Bardeen, W.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nondestructive characterization of low-level transuranic waste

Description: The use of nondestructive evaluation (NDE) methods is proposed for characterization of transuranic (TRU) waste stored at the Radioactive Waste Management Complex. These NDE methods include real-time x-ray radiography, real-time neutron radiography, x-ray and neutron computed tomography, thermal imaging, container weighing, visual examination, and acoustic measurements. An integrated NDE system is proposed for characterization and certification of TRU waste destined for eventual shipment to the … more
Date: October 1, 1981
Creator: Barna, B. A. & Reinhardt, W. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measured and projected performance of plasma direct converters

Description: Test results from two plasma direct converters and their predicted cost and performance on tandem mirror fusion reactors are present. The tests were done at high power density (approx. 70 W/cm/sup 2/) in steady state to simulate the predicted conditions in a reactor. A single stage unit and a two-stage unit of the Venetian blind type were tested at up to 100 kV and 6 kW for a total time of about 80 hours. Measured efficiencies, when projected to a reactor, are typically about 50% for a single s… more
Date: October 22, 1981
Creator: Barr, W.L. & Moir, R.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Investigation of Sulfur-Tolerant Catalysts for Selective Synthesis of Hydrocarbon Liquids From Coal-Derived Gases. Annual Technical Progress Report, September 19, 1980-September 18, 1981

Description: During the past contract year, considerable progress was made in characterization and activity/selectivity testing of iron and cobalt catalysts. Preparation of boride promoted cobalt and iron catalysts was refined and nearly completed. H/sub 2/ and CO adsorption and oxygen titration measurements were performed on a number of supported and unsupported catalysts, especially several boride promoted cobalt and iron catalysts. Activity/selectivity tests of 3 and 15% Fe/SiO/sub 2/ and Co/SiO/sub 2/ a… more
Date: October 31, 1981
Creator: Bartholomew, C. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Simulation of the Energy Saver refrigeration system

Description: The helium refrigeration for the Energy Saver is supplied by a Central Helium Liquefier and 24 Satellite Refrigerators installed over a 1-1/4 square mile area. An interactive, software simulator has been developed to calculate the refrigeration available from the cryogenic system over a wide range of operating conditions. The refrigeration system simulator incorporates models of the components which have been developed to quantitatively describe changes in system performance. The simulator outp… more
Date: October 1, 1981
Creator: Barton, H.R. Jr.; Nicholls, J.E. & Mulholland, G.T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Aquifer evaluation at Fenton Hill, October and November 1980

Description: An aquifer test at the Fenton Hill Geothermal Site was performed on a volcanic aquifer used for water supply. The test was made to determine the yield from the aquifer and to predict the amount of depletion that would occur with increased production during the period 1981 to 1985. A step-discharge test indicated the aquifer would comfortably yield 100 gal per min (gpm) without excessive water level drawdown in the pumping well. Drawdown test results indicated that the average aquifer transmissi… more
Date: October 1, 1981
Creator: Becker, N. M.; Purtymun, W. D. & Ballance, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Diagnostic timing system for the TMX-Upgrade

Description: This system provides trigger signals at various times and clock signals at various frequencies for the CAMAC transient recorders of the plasma diagnostics system for the TMX-Upgrade. The timing system is designed so that all clocks are in fixed-phase relation to their corresponding triggers and to each other. Therefore, data recorded from the different diagnostics can be directly time compared. Trigger signals can be generated in 100-ns increments, with an uncertainty of 500 ps. The clock signa… more
Date: October 13, 1981
Creator: Bell, H.H. Jr.; G.W., Coutts & Hinz, A.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Geostatistics project of the national uranium resource evaluation program. Progress report, October 1980-March 1981

Description: During the period covered by this report, we analyzed the radiometric data collected along the Texas Gulf Coast using ten discriminant analysis techniques to establish radiometric signatures and classify new observations. We conducted a survey of several methods for computing the covariance matrix of large data sets, with particular interest to one-pass algorithms. An investigation of methods of estimating upper-tail percentiles for aerial radiometric data was begun. A feasibility study was con… more
Date: October 1, 1981
Creator: Bement, T. R.; Howell, J. A.; McKay, M. D.; Johnson, M. E.; Tietjen, G. L.; Wecksung, G. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Performance characteristics of NBSTF, the prototype neutral-beamline for TFTR

Description: The Neutral Beam System Test Facility (NBSTF) at the Lawrence Berkeley Laboratory is a shielded facility for prototype development and testing of the multi-megawatt neutral-beam injection system for the Tokamak Fusion Test Reactor (TFTR) at the Princeton Plasma Physics Laboratory. NBSTF includes: a power system capable of regulated, rapidly switched 120-kV, 75-A, 1.5-sec pulses every three minutes; the cryopumped TFTR prototype beamline with calorimeter, sweep magnet, ion dump, duct, and a targ… more
Date: October 1, 1981
Creator: Berkner, K. H.; Feist, J. H.; Jacobson, V. L.; Lietzke, A. F.; Roberts, J. W.; Smith, R. R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effective method for MHD retrofit of power plants

Description: Retrofitting existing power plants with an open-cycle MHD system has been re-examined in light of recent developments in the heat and seed recovery technology area. A new retrofit cycle configuration has been developed which provides for a direct gas-gas coupling; also, the MHD topping cycle can be decoupled from the existing plant for either separate or joint operation. As an example, the MHD retrofit concept has been applied to Illinois Power Company's Vermilion Station No. 1, a coal-fired po… more
Date: October 1, 1981
Creator: Berry, G. F.; Dennis, C. B.; Johnson, T. R. & Minkov, V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Alpha-transfer reactions

Description: Some of the essential features of the experimental results and theoretical interpretations of ..cap alpha..-transfer reactions are summarized. (WHK)
Date: October 1, 1981
Creator: Betts, R.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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High-angular-momentum resonances in /sup 28/Si + /sup 28/Si scattering

Description: The initial expectation was that resonance behavior in heavy-ion systems would be limited to only a few special systems and to energies not too far above the Coulomb barrier. The past few years have shown us that this behavior has a much wider extent than was previously thought possible, although in many cases the indications of resonance behavior is at best qualitative. Results are presented for the /sup 28/Si + /sup 28/Si system - the heaviest in which resonance behavior has yet been observed… more
Date: October 1, 1981
Creator: Betts, R.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Design and fabrication of a large magnetic cusp type of plasma generator for the production of negative ions

Description: The design and fabrication techniques for a large magnetic bucket type of plasma source designed for the production of negative ions by surface conversion are described. These include the design of a converter structure, cesium oven and injector, variable aperture electrode, accelerator section as well as the features of the magnetic cusp geometry employed.
Date: October 1, 1981
Creator: Biagi, L. A.; Ehlers, K. W.; Leung, K. N.; Matuk, C. A.; Moon, S. D. & Paterson, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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