UNT Libraries Government Documents Department - 193 Matching Results

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I-129 in SRP high-level waste and saltstone

Description: Long-lived isotopes in nuclear waste can have the greatest impact on man and the environment because of the integrated dose over a long time period. Many long-lived radioactive isotopes are present in the waste at Savannah River Plant. Actinide elements make up a significant portion of these isotopes. But when the waste is incorporated into a glass waste form, the actinides are converted to chemically stable oxide species that are released at extremely low and controlled rates, even after the w… more
Date: February 29, 1984
Creator: Fowler, J. R. & Cook, J. R.
Item Type: Refine your search to only Report
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650 mm long liquid hydrogen target for use in a high intensity electron beam

Description: This paper describes a 650 mm long liquid hydrogen targetr constructed for use in the high intensity electron beam at the Stanford Linear Accelerator Center (SLAC). The main design problem was to construct a target that would permit the heat deposited by the electron beam to be removed rapidly without boiling the hydrogen so as to maintain constant target density for optimum data taking. Design requirements, cosntruction details and operating experience are discussed.
Date: February 1, 1984
Creator: Mark, J.W.
Item Type: Refine your search to only Article
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Advanced direct coal liquefaction. Quarterly technical progress report No. 1, September-November 1983

Description: Wyoming subbituminous coal was liquefied using three different two-stage process configurations in bench-scale tests. These process configurations differed in the type of fractionated deashing resid being recycled to the individual stages. The objective of these runs was to determine whether, by recycle of specific resid streams to the thermal stage, the second stage catalyst life could be improved without detrimentally affecting distillate yield or hydrogen consumption. The results indicate th… more
Date: February 7, 1984
Creator: Paranjape, A.S.
Item Type: Refine your search to only Report
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Advanced Fuel Cell Development Progress Report: April-June 1983

Description: Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts on development of molten carbonate fuel cells directed toward seeking alternative cathode materials to NiO. Based on an investigation of the thermodynamically stable phases formed under cathode conditions with a number of transition metal oxides, synthesis of prospective alternative cathode materials and doping of these materials to promote electronic conductiv… more
Date: February 1984
Creator: Ackerman, J. P. & Pierce, Robert Dean
Item Type: Refine your search to only Report
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Alloys in energy development

Description: The development of new and advanced energy systems often requires the tailoring of new alloys or alloy combinations to meet the novel and often stringent requirements of those systems. Longer life at higher temperatures and stresses in aggressive environments is the most common goal. Alloy theory helps in achieving this goal by suggesting uses of multiphase systems and intermediate phases, where solid solutions were traditionally used. However, the use of materials under non-equilibrium conditi… more
Date: February 1, 1984
Creator: Frost, B.R.T.
Item Type: Refine your search to only Article
open access

Analysis of surface currents on the CTX mesh flux conserver

Description: The use of discharge cleaning and a mesh structure for the flux conserver have led to hotter, less resistive, spheromak configurations in the CTX experiment. Achievement of these conditions has been accompanied by the appearance of oscillations - most notably seen on magnetic probe signals - that were previously not present. These oscillations are observed both during the sustainment (V/sub gun/ not equal to 0) and the decaying (V/sub gun/ = 0) phases of the discharge and are attributed to the … more
Date: February 1, 1984
Creator: Wright, B.L.
Item Type: Refine your search to only Article
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[Appendix III-B. Petrographic Descriptions]

Description: Report presenting petrographic descriptions of five rock samples collected at or near the Pedad claims area surveyed for the National Uranium Resource Evaluation (NURE) survey, listing the rock name, percentage of mineral components, and features of each rock.
Date: February 1984
Creator: Goodknight, Craig S. & Dixon, M.
Item Type: Refine your search to only Report
open access

[Appendix IV-B. Petrographic Descriptions]

Description: Report presenting petrographic descriptions of eleven rock samples collected at or near the Venado Creek area surveyed for the National Uranium Resource Evaluation (NURE) survey, listing the rock name, percentage of mineral components, and features of each rock.
Date: February 1984
Creator: Goodknight, Craig S.
Item Type: Refine your search to only Report
open access

[Appendix V-B. Petrographic Descriptions]

Description: Report presenting petrographic descriptions of eight rock samples collected at or near the Tusas Mountain Granite and Maquinita Granodorite areas surveyed for the National Uranium Resource Evaluation (NURE) survey, listing the rock name, percentage of mineral components, and features of each rock.
Date: February 1984
Creator: Goodknight, Craig S.
Item Type: Refine your search to only Report
open access

Aspen simulation of oil shale retort off-gas cleanup with venturi scrubbers

Description: A significant fraction of the product energy from oil shale retorting is contained in the retort off gas. Most oil shale processes use the retort off gas from plant fuel. The H/sub 2/S and NH/sub 3/ in retort off gas produce too much SO/sub 2/ and NOX to allow burning without a pollution control system. We used the ASPEN flowsheet simulator to model retort off-gas cleanup by venturi scrubbers. Venturi scrubbers are commonly used to remove particulates from gas streams, but the scrubbing liquid … more
Date: February 1, 1984
Creator: Phillips, T. T.
Item Type: Refine your search to only Report
open access

Assessment of extent and degree of thermal damage to polymeric materials in the Three Mile Island Unit 2 reactor building. Volume VI

Description: Thermal damage to susceptible materials in accessible regions shows damage-distribution patterns that indicate nonuniform intensity of exposure. No clear explanation for nonuniformity is found in existing evidence; e.g., in some regions a lack of thermally susceptible materials frustrates analysis. Elsewhere, burned materials are present next to materials that seem similar but appear unscathed - leading to conjecture that the latter materials preferentially absorb water vapor during periods of … more
Date: February 1, 1984
Creator: Alvares, N. J.
Item Type: Refine your search to only Report
open access

Brine and gas recovery from geopressured systems. I. Parametric calculations

Description: A series of parametric calculations was run with the S-CUBED geopressured-geothermal simulator MUSHRM to assess the effects of important formation, fluid and well parameters on brine and gas recovery from geopressured reservoir systems. The specific parameters considered are formation permeability, pore-fluid salinity, temperature and gas content, well radius and location with respect to reservoir boundaries, desired flow rate, and possible shale recharge. It was found that the total brine and … more
Date: February 1, 1984
Creator: Garg, S. K. & Riney, T. D.
Item Type: Refine your search to only Report
open access

Calculation of molecular final states and their effect on a precision neutrino mass experiment

Description: An experiment to determine the electron neutrino mass is being performed with the precision of a few electron volts by measuring the tritium beta decay energy distribution near the endpoint. At the few electron volt level, a major consideration in the choice of a tritium source is the effect of excited final atomic or molecular states on the beta decay distribution. It is important to choose a source for which the initial and final states can be accurately calculated. Frozen tritium was chosen … more
Date: February 1, 1984
Creator: Fackler, O.; Mugge, M.; Sticker, H.; Winter, N. & Woerner, R.
Item Type: Refine your search to only Article
open access

Calculation of sample problems related to two-phase flow blowdown transients in pressure relief piping of a PWR pressurizer

Description: A method was published, based on the integral method of characteristics, by which the junction and boundary conditions needed in computation of a flow in a piping network can be accurately formulated. The method for the junction and boundary conditions formulation together with the two-step Lax-Wendroff scheme are used in a computer program; the program in turn, is used here in calculating sample problems related to the blowdown transient of a two-phase flow in the piping network downstream of … more
Date: February 1, 1984
Creator: Shin, Y.W. & Wiedermann, A.H.
Item Type: Refine your search to only Article
open access

Chemical Species of Migrating Radionuclides at Commercial Shallow Land Burial Sites Quarterly Progress Report October-December, 1983 Quarterly Progress Report October-December, 1983

Description: The primary purpose of this project is to develop an understanding of chemical processes that significantly influence the migration of radionuclides at commercial low-level waste (LLW} burial sites. Chemical measurements of waste trench leachate and identification of chanical changes in leachate during migration will provide a basis for geochemical waste transport models. This project will produce for the U.S. Nuclear Regulatory C011mission (NRC) information to support guidance for implementati… more
Date: February 1, 1984
Creator: Kirby,, L. J.; RIckard,, W. H. & Toste,, A. P.
Item Type: Refine your search to only Report
open access

Chemistry of glass-ceramic to metal bonding for header applications. I. Effect of treatments on Inconel 718 and Hastelloy C-276 metallic surfaces

Description: Auger electron spectroscopy and depth Auger profiling were used to study the surfaces of Inconel 718 and Hastelloy C-276. The metal surfaces were processed in the same manner as is presently being used in the manufacturing of glass-ceramic headers. At each step in the process, samples were studied with Auger spectroscopy to determine their resultant elemental surface composition and film thickness. In addition, the effect of a final plasma cleaning operation on the metal surface was examined. T… more
Date: February 2, 1984
Creator: Kramer, D P; Craven, S M; Schneider, R E; Moddeman, W E & Brohard, D W
Item Type: Refine your search to only Report
open access

CO + H/sub 2/ reaction over nitrogen-modified iron catalysts. Quarterly technical progress report, October 1, 1983-December 30, 1983. [Denitriding of iron nitrides in both hydrogen and helium]

Description: The synthesis of epsilon-Fe/sub 2.7/N is confirmed by Moessbauer spectroscopy. Carburization of epsilon-iron nitride for 2.5 hours in 3H/sub 2//CO at 523 K starts the formation of a bulk structure similar to that seen during ..gamma..'-iron nitride carburization. Reaction of ..gamma..'-Fe/sub 4/N in 3CO/H/sub 2/ synthesis gas at 523 K shows a better bulk stability than reaction in 3H/sub 2//CO. Kinetic analysis of the product distribution at the higher CO ratio confirms greater activity and sel… more
Date: February 1, 1984
Creator: Delgass, W.N.
Item Type: Refine your search to only Report
open access

Combustion of calcium-exchanged coal. First quarterly report

Description: The work performed during this first period includes equipment modification, development of analytical methods, oxidative pretreatment runs and combustion runs. The coal feeding section of an existing furnace was modified for uninterrupted feeding and better control of residence time. Analytical methods for sulfur and calcium in the coal and ash and for gaseous SO/sub 2/ were standardized. Oxidative pretreatment experiments were conducted in a fluidized bed at temperatures about 200/sup 0/C to … more
Date: February 10, 1984
Creator: Gavalas, G. R. & Flagan, R. C.
Item Type: Refine your search to only Report
open access

Commercial waste treatment program annual progress report for FY 1983

Description: This annual report describes progress during FY 1983 relating to technologies under development by the Commercial Waste Treatment Program, including: development of glass waste form and vitrification equipment for high-level wastes (HLW); waste form development and process selection for transuranic (TRU) wastes; pilot-scale operation of a radioactive liquid-fed ceramic melter (LFCM) system for verifying the reliability of the reference HLW treatment proces technology; evaluation of treatment re… more
Date: February 1, 1984
Creator: McElroy, J.L. & Burkholder, H.C. (comps.)
Item Type: Refine your search to only Report
open access

CONC/11: a computer program for calculating the performance of dish-type solar thermal collectors and power systems

Description: CONC/11 is a computer program designed for calculating the performance of dish-type solar thermal collectors and power systems. It is intended to aid the system or collector designer in evaluating the performance to be expected with possible design alternatives. From design or test data on the characteristics of the various subsystems, CONC/11 calculates the efficiencies of the collector and the overall power system as functions of the receiver temperature for a specified insolation. If desired… more
Date: February 15, 1984
Creator: Jaffe, L. D.
Item Type: Refine your search to only Report
open access

Constructing a bit string universe. Progress report

Description: We present a case for discrete, constructive physics that generates four scale constants, a connection to laboratory events and scattering theory that ties these to the dimensional constants c, h, m/sub p/, and G, and a tentative quantum number assignment consistent with standard model for leptons and quarks with three generations. Current first approximations from the theory are dirac constant c/e/sup 2/ = 137 +- O(1/137), dirac constant c/Gm/sup 2//sub p/ - 2/sup 127/ + 136 approx. = 1.7 x 10… more
Date: February 1, 1984
Creator: Noyes, H. P.; Manthey, M. J. & Gefwert, C.
Item Type: Refine your search to only Article
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