Auger and Reaction Studies of Poisoning by Sulfur and Regeneration of Metal Synthesis Gas Catalysts. Progress Report, December 8, 1975--December 8, 1976 (open access)

Auger and Reaction Studies of Poisoning by Sulfur and Regeneration of Metal Synthesis Gas Catalysts. Progress Report, December 8, 1975--December 8, 1976

CO methanantion rates have been measured in the all-glass internal recycle reactor developed for this work. The methanation rate over the cylinder Ni film catalyst at 400/sup 0/C is 3.9 sec/sup -1/ initially, and the catalyst undergoes deactivation to a value of 1.8 sec/sup -1/, comparable with a reported value of 2.5 sec/sup -1/. The activation energy for Ni film on alumina is 24 kcal/mole, that for Ni film on silica is 17.8 kcal/mole comparable to values for Ni on these supports. The kinetics suggest that CO dissociation is rate limiting; carbon on the Ni is easily hydrogenated off. H/sub 2/S causes severe deactivation and regeneration after sulfur poisoning is not easily achieved by oxidation in the reactor. However, sulfur is easily removed from Ni by oxygen from a molecular leak in the high-vacuum chamber of the Auger electron spectrometer. Atmospheric pressure studies using an ante-chamber connected to the spectrometer chamber show that sulfur cannot be removed from Ni under conditions similar to those in the reactor because of rapid oxide growth which buries the sulfur preventing removal. Standards allowing determination of concentration as well as chemical state for Ni, O, S, and C have been developed.
Date: December 10, 1976
Creator: Katzer, James R.
Object Type: Report
System: The UNT Digital Library
Estimation of aerosol plutonium transport by the dust-flux method: a perspective on application of detailed data (open access)

Estimation of aerosol plutonium transport by the dust-flux method: a perspective on application of detailed data

Two methods of dust-flux measurements are discussed which have been utilized to estimate aerosol plutonium deposition and resuspension. In previous studies the methods were found to be sufficiently detailed to permit parameterization of dust-flux to the erodibility of the soil, and a seventh-power dependency of dust-flux (or plutonium flux) to wind speed was observed in worst case conditions. The eddy-correlation method is technically more difficult, requires high-speed data acquisition, and requires an instrument response time better than one second, but the eddy-correlation method has been shown feasible with new fast-response sensors, and it is more useful in limited areas because it can be used as a probe. The flux-gradient method is limited by critical assumptions and is more bulky, but the method is more commonly used and accepted. The best approach is to use both methods simultaneously. It is suggested that several questions should be investigated by the methods, such as saltation stimulation of dust-flux, simultaneous suspension and deposition, foliar deposition and trapping, erodibility of crusted surfaces, and horizontally heterogeneous erodibility.
Date: December 10, 1976
Creator: Shinn, Joseph H.
Object Type: Article
System: The UNT Digital Library
Tritium Waste Control Project progress report: April--June 1976. [LIS; electrolysis; monitor; shipping container; catalytic exchange] (open access)

Tritium Waste Control Project progress report: April--June 1976. [LIS; electrolysis; monitor; shipping container; catalytic exchange]

Tritiated Liquid Waste Decontamination (Molecular Excitation): A preliminary economic study of water detritiation by laser isotope separation indicates possible advantages over the catalytic exchange process. The electric power requirements are a factor of 5 lower, resulting in a 50-percent reduction in operating costs. Capital costs for the two methods appear comparable. Additional attempts were made to determine the ir spectrum of HTO around the ..nu../sub 1/ band. However, carbon dioxide impurity obscured the HTO absorption around 2265 cm/sup -1/ making it impossible to obtain a high quality spectrum for use in the LIS experiments. Electrolysis of High Level Tritiated Water: In an experiment using a regenerative cell on water containing approximately 0.3 g tritium, about 21 ml of water was electrolyzed but the solid polymer electrolyte ruptured and cell components were damaged beyond repair. Tritium Monitor Development and Calibration: The calibration system design was modified to allow procurement and fabrication of the major components during FY-1976. Shipping Container Development for Tritiated Liquid Waste: The bourdon tube pressure gage was replaced with a pressure transducer for double containment. A calorimeter was completed for tritium assay of contents. Catalytic Exchange Detritiation Studies: The Englehard hydrophobic, catalyst for HT/H/sub 2/O exchange is being …
Date: December 10, 1976
Creator: Bixel, J. C. & Kershner, C. J.
Object Type: Report
System: The UNT Digital Library
Computer networks in the physical sciences (open access)

Computer networks in the physical sciences

None
Date: November 10, 1976
Creator: Austin, D. M.
Object Type: Article
System: The UNT Digital Library
Effects of the trip phenomenon on the toughness of heat treatable alloy steels. [AISI 4330] (open access)

Effects of the trip phenomenon on the toughness of heat treatable alloy steels. [AISI 4330]

It is shown that substantial amounts of untransformed austenite may be obtained in low alloy steels by a combination of alloy modification (addition of silicon) and heat treatment. In silicon modified AISI 4330 steel, the amount of untransformed austenite is varied by utilizing isothermal treatments both above and below the M/sub s/. The stability of the untransformed austenite is found to be dependent on the amount of silicon and also on the tempering temperature. A magnetic saturation technique was utilized to monitor the transformation of the austenite under uniaxial tensile loading. An improvement in the plane strain fracture toughness (K/sub Ic/) was observed when the retained austenite transformed with respect to strain. This improvement was optimized with particular combinations of stability and volume fractions of retained austenite. The addition of silicon resulted in an increase of both the strength and the fracture toughness (K/sub Ic/) of the quenched and tempered AISI 4330 steel. Yield strengths in the range of 200-220 ksi and K/sub Ic/ values as high as 107 ksi..sqrt..in were obtained. The microstructure was characterized using both optical and electron microscopy and is correlated with the mechanical properties.
Date: November 10, 1976
Creator: Kohn, G.
Object Type: Report
System: The UNT Digital Library
Linear accelerator-breeder (LAB): a preliminary analysis and proposal (open access)

Linear accelerator-breeder (LAB): a preliminary analysis and proposal

None
Date: November 10, 1976
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Lithium--water--air battery project: progress during the month of October 1976. [Characterization of Li/I/sub 2/ and Li/Br/sub 2/ batteries] (open access)

Lithium--water--air battery project: progress during the month of October 1976. [Characterization of Li/I/sub 2/ and Li/Br/sub 2/ batteries]

Experimental work in the area of the ambient-temperature, steady-state behavior of the lithium electrode was completed. The following conclusions were drawn: 100 percent coulombic efficiency may be approached over a wide range of concentrations, flow conditions, and current densities; coulombic efficiency is approximately equal to I/sub e//I/sub l/, and I/sub e/ is the current in the external circuit, and I/sub l/ is the diffusion-limited current. Li electrode resistivities of (0.4 to 1.0) x 10/sup -4/ ..cap omega..-m/sup 2/ were obtained, and thus the plane-parallel configuration is suitable for batteries of the lithium-water type. Work on the characterization of Li/I/sub 2/ and Li/Br/sub 2/ analog batteries was begun. (RWR)
Date: November 10, 1976
Creator: Cooper, J. F.; Hosmer, P. K. & Homsy, R. V.
Object Type: Report
System: The UNT Digital Library
Response of rocks to large stresses. [Model for predicting response of ductile and brittle rocks to impact loading] (open access)

Response of rocks to large stresses. [Model for predicting response of ductile and brittle rocks to impact loading]

To predict the dimensions and characteristics of impact- and explosion-induced craters, one must know the equation of state of the rocks in which the crater is formed. Recent experimental data shed light upon inelastic processes that influence the stress/strain behavior of rocks. We examine these data with a view to developing models that could be used in predicting cratering phenomena. New data is presented on the volume behavior of two dissimilar rocks subjected to tensile stresses.
Date: November 10, 1976
Creator: Schock, R. N.
Object Type: Article
System: The UNT Digital Library
Year-end report: National Energy-Peak-Levelling Program (NEPLP) (open access)

Year-end report: National Energy-Peak-Levelling Program (NEPLP)

Section I presents a management overview of the project. Section II presents an introduction, methodology, and summary of data for the five buildings audited in Los Angeles. Additional sections present methodologies and data for operating profiles; load shedding determination; remote data, analysis; feedback; and socio-economic factors for the buildings. Additional detailed data provided in appendices are: financial management, audit, operating profiles, analysis and feedback, and computer programs. (MCW)
Date: November 10, 1976
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Annual progress report. [Nonlinear saturation of instabilities; linear stability theory for tokamaks] (open access)

Annual progress report. [Nonlinear saturation of instabilities; linear stability theory for tokamaks]

Research has been carried out in two broad areas, nonlinear saturation of instabilities in collisionless plasma and incorporation of important physical phenomena into linear stability theories appropriate to Tokamaks. The nonlinear work has established a general technique for dealing with the singular functions which arise and is now applied to the collisionless drift, the dissipative trapped electron in linear geometry and the drift cyclotron loss cone. Multimode problems are under study. The linear theory includes the influence of resonant electrons on the trapped electron instability in sheared magnetic fields. A further calculation includes the collisional broading of the untrapped electron response. Finally a general technique is developed for calculations when there are collisions and the product of the poloidal wave number and ion gyroradium is not necessarily small.
Date: September 10, 1976
Creator: Simon, A.
Object Type: Report
System: The UNT Digital Library
Preliminary study of the recycling of spent gases from the iodine laser (open access)

Preliminary study of the recycling of spent gases from the iodine laser

A process is proposed for recycling the spent gases from the iodine laser. Using a simplified form of this process, a preliminary estimate of the energy cost to recycle the perfluoroisopropyliodide-argon gas mixture used as the laser medium in the iodine laser was made. If r is defined as the ratio of the recycling energy to the output energy of the laser, a figure of 70 is arrived at for the most optimistic conditions and 160 for the most probable conditions. A major portion of the energy necessary for recycling is consumed in the synthesis of the perfluoroiodide compound. An estimate of the cost to replace the lost perfluoroiodide, if purchased, is from $2.4 to 10 million per year, based on a continuous operation at the 100-kJ laser power level.
Date: September 10, 1976
Creator: Pearson, R. K. (ed.)
Object Type: Report
System: The UNT Digital Library
SHIVA laser system for fusion experiments (open access)

SHIVA laser system for fusion experiments

The SHIVA laser is a 20 beam Nd-doped glass laser designed to provide various irradiation geometries for fusion pellets. The general objective of the SHIVA laser is to achieve significant thermonuclear burn or about 1 percent of scientific breakeven by isentropic compression. Descriptions are given of the laser system, physical configuration, alignment system, and the computer control system. (MOW)
Date: September 10, 1976
Creator: Godwin, R. O.
Object Type: Article
System: The UNT Digital Library
Study of neutral mesons decaying into. pi. /sup +/. pi. /sup -/3. gamma. and. pi. /sup +/. pi. /sup -/4. gamma. [Proposed experiment] (open access)

Study of neutral mesons decaying into. pi. /sup +/. pi. /sup -/3. gamma. and. pi. /sup +/. pi. /sup -/4. gamma. [Proposed experiment]

It is proposed to use the Charged and Neutral Spectrometer in Beam 8 to study the reactions ..pi../sup -/p ..-->.. ..pi../sup +/..pi../sup -/3..gamma..n and ..pi../sup -/p ..-->.. ..pi../sup +/..pi../sup -/4..gamma..n at 8.5 GeV/c. Improvements to the spectrometer will allow a data collection rate 4 to 5 times better than achieved for these reactions in E-397. Of particular interest are the radiative decays eta' ..-->.. ..omega gamma.., ..omega.. ..-->.. eta..gamma.., rho ..-->.. eta..gamma..; the decay f ..-->.. ..pi../sup +/..pi../sup -/..pi../sup 0/..pi../sup 0/, in which A/sub 1/..pi.. may occur; the decay A/sub 2/ ..-->.. ..omega pi../sup +/..pi../sup -/, in connection with an isoscalar under the A/sub 2/; study/search for B/sup 0/ and delta/sup 0/; rare final states such as eta eta, eta..omega.., eta'..pi../sup 0/ and eta'eta.
Date: September 10, 1976
Creator: Edwards, K. W.; Legacey, D. & Brockman, P.
Object Type: Report
System: The UNT Digital Library
Theoretical modeling of the KrF fluorescence spectrum (open access)

Theoretical modeling of the KrF fluorescence spectrum

Dunning's amd Hay's electronic potential curves were used to compute transition moments and to predict emission profiles for comparison with the observed fluorescence spectra. By adjusting the ionic and valence states by 8 nm, many of the observed spectral features can be quantitatively accounted for. The synthetic spectrum of KrF includes the 220-nm D/sub /sup 1///sub 2// ..-->.. X transition, the 249-nm composite feature, and the 276-nm feature which is a superposition of the nearly coincident C/sub /sup 3///sub 2// ..-->.. A/sub /sup 3///sub 2// and B/sub /sup 1///sub 2// ..-->.. /sub /sup 1///sub 2// transitions. The feature observed at 300 nm by Powell and Murray is likely due to a transition from the /sup 2/..sigma../sup +//sub /sup 1///sub 2// Rydberg state to the repulsive A/sub /sup 1///sub 2// state. The 400-nm feature may be due to a triatomic complex. (DLC)
Date: September 10, 1976
Creator: Rescigno, T. N. & Winter, N. W.
Object Type: Article
System: The UNT Digital Library
Borehole cement and rock properties studies. Progress report for the period up to 1 August 1976 (open access)

Borehole cement and rock properties studies. Progress report for the period up to 1 August 1976

Research on the use of cements in radioactive waste isolation is reported. Other research is reported on the effects of thermal treatments of clays and shales on their cation exchange capacities and relative sorptive properties for cations. Development of instrumentation for measuring thermal properties of cements at atmospheric pressure was completed. A method was developed for measuring heat flow in shales and cement. Data on thermodynamic properties of cements and shales are included. Studies of shales, siltstones, and evaporites including scanning electron microscopy are in progress. (JRD)
Date: August 10, 1976
Creator: Roy, D. M.; Brindley, G. W.; McKinstry, H. A.; Voight, B.; Grutzeck, M.; Komarneni, S. et al.
Object Type: Report
System: The UNT Digital Library
Critical evaluation of the nonradiological environmental technical specifications. Program description, summary, and recommendations. Vol. 1 (open access)

Critical evaluation of the nonradiological environmental technical specifications. Program description, summary, and recommendations. Vol. 1

A comprehensive study of the data collected as part of the environmental Technical Specifications program for eight nuclear power plants was conducted for the Office of Nuclear Regulatory Research of the U.S. Nuclear Regulatory commission. This report includes a summary of the screening phase in which the adequacy of the hydrothermal and ecological monitoring data for each plant were evaluated, and the summary and recommendations resulting from a detailed examination of the three nuclear power plants selected in the initial screening.
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D.; Kumar, K. D. & Witten, A. J.
Object Type: Report
System: The UNT Digital Library
Critical evaluation of the nonradiological environmental technical specifications. Volume 2. Surry Power Plants, Units 1 and 2 (open access)

Critical evaluation of the nonradiological environmental technical specifications. Volume 2. Surry Power Plants, Units 1 and 2

A comprehensive study of the data collected as part of the environmental Technical Specifications program for Units 1 and 2 of the Surry Nuclear Power Plant was carried out for the Office of Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of the hydrothermal and ecological monitoring data collected from 1973 through 1975. The hydrothermal analysis includes a discussion of models used in plume predictions prior to plant operation and an evaluation of the present hydrothermal monitoring program. The two primary methods used for temperature monitoring employ a fixed thermographs network and boat measurements. Review of data indicates that both the application and formulation of the hydrothermal monitoring program are inadequate to fully characterize the operation of the plant and the behavior of the thermal plume. Furthermore, there are no existing data that can be used to adequately verify or disprove the validity of the various Surry plume predictions. The ecological analysis includes validation of impacts predicted in the Final Environmental Statement using the operational monitoring data. Phytoplankton cell concentrations, chlorophyll a, and carbon-14 measurements were used to monitor changes in the primary producers. Densities of consumers (i.e., zooplankton, benthos, and fish) were sed to …
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D. & Kumar, K. D.
Object Type: Report
System: The UNT Digital Library
Critical evaluation of the nonradiological environmental technical specifications. Volume 3. Peach Bottom Atomic Power Station Units 2 and 3 (open access)

Critical evaluation of the nonradiological environmental technical specifications. Volume 3. Peach Bottom Atomic Power Station Units 2 and 3

A comprehensive study of the data collected as part of the environmental Technical Specifications program for Units 2 and 3 of the Peach Bottom Nuclear Power Plant was conducted for the Office of Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of both the hydrothermal and ecological monitoring data collected from 1967 through 1976. Specific recommendations are made for improving both the present hydrothermal and ecological monitoring programs. Hydrothermal monitoring would be improved by more complete reporting of in-plant operating parameters. In addition, the present boat surveys could be discontinued, and monitoring efforts could be directed toward expanding the present thermograph network. Ecological monitoring programs were judged to be of high quality because standardized collection techniques, consistent reporting formats, and statistical analyses were performed on all of the data and were presented in an annual report. Sampling for all trophic groups was adequate for the purposes of assessing power plant induced perturbations. Considering the extensive period of preoperational data (six years) and operational data (three years) available for analysis, consideration could be given to reducing monitoring effort after data have been collected for a period when both units are operating at full capacity. In this …
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D.; Kumar, K. D. & Witten, A. J.
Object Type: Report
System: The UNT Digital Library
Critical evaluation of the nonradiological environmental technical specifications. Volume 4. San Onofre Nuclear Generating Station, Unit 1 (open access)

Critical evaluation of the nonradiological environmental technical specifications. Volume 4. San Onofre Nuclear Generating Station, Unit 1

A comprehensive study of the data collected as part of the environmental Technical Specifications program for Unit 1 of the San Onofre Nuclear Generating Station (SONGS 1) was conducted for the Office of Nuclear Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of the hydrothermal and ecological monitoring data collected during 1975. The hydrothermal analysis includes a discussion of models used in plume predictions prior to plant operation and an evaluation of the present hydrothermal monitoring program. The ecological evaluation was directed toward reviewing the strengths and weaknesses of the various sampling programs designed to monitor the planktonic, benthic, and nektonic communities inhabiting the inshore coastal area in the vicinity of San Onofre.
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D. & Kumar, K. D.
Object Type: Report
System: The UNT Digital Library
DT fusion neutron irradiation of BNL--LASL superconductor wires (open access)

DT fusion neutron irradiation of BNL--LASL superconductor wires

The following samples were irradiated with the LLL rotating target neutron source: 19-core Nb/sub 3/Sn multifilament wires, Nb/sub 3/Sn single core, V/sub 3/Ga single core, NbTi Supercon 402, and NbTi cupronickel jacketed. No test results are given. (MOW)
Date: August 10, 1976
Creator: MacLean, S. C.
Object Type: Report
System: The UNT Digital Library
Feasibility of a MHD generator as a transmitter for electromagnetic sounding of the earth. [Mathematical models] (open access)

Feasibility of a MHD generator as a transmitter for electromagnetic sounding of the earth. [Mathematical models]

Development of a high-intensity source for use in time-domain electromagnetic (TDEM) soundings would permit investigation of geothermal systems to much greater depth than is now possible with controlled-source methods. The development of such a source is critically dependent upon a powerful, mobile generator. Magnetohydrodynamic pulse generators satisfy the weight and power requirements for such a generator. However, existing MHD generators which are used in geophysical applications are solid fueled, and therefore, very expensive to operate. Moreover, the pulse length from such a generator is limited to about 10 seconds, which may be too short to permit the maximum advantage to be gained from the available power. The shortcomings of the MHD generator will be remedied in a liquid-fueled generator now under development for the U.S. Air Force. A field program designed to compare available conventional and MHD generators would provide the necessary information for final generator selection, as well as an abundance of information on the nature of geothermal systems at depth. Operation and cost studies on MHD generators are given, and model calculations for TDEM soundings of geothermal hot-dry-rock systems are presented.
Date: August 10, 1976
Creator: Fleming, D. B.
Object Type: Report
System: The UNT Digital Library
Mirror reactor studies. [Design studies of fusion mirror, hybrid mirror, and two small mirror reactors] (open access)

Mirror reactor studies. [Design studies of fusion mirror, hybrid mirror, and two small mirror reactors]

Design studies of a fusion mirror reactor, a fusion-fission mirror reactor, and two small mirror reactors are summarized. The fusion reactor uses 150-keV neutral-beam injectors based on the acceleration of negative ions. The injectors provide over 1 GW of continuous power at an efficiency greater than 80 percent. The fusion reactor has three-stage, modularized, Venetian blind, plasma direct converter with a predicted efficiency of 59 percent and a new concept for removal of the lune-shaped blanket: a crane is brought between the two halves of the Yin-Yang magnet, which are separated by a float. The design has desirable features such as steady-state operation, minimal impurity problems, and low first-wall thermal stress. The major disadvantage is low Q resulting in high recirculating power and hence high cost of electrical power. However, the direct capital cost per unit of gross electrical power is reasonable ($1000/kW(e)).
Date: August 10, 1976
Creator: Moir, R. W.; Barr, W. L. & Bender, D. J.
Object Type: Report
System: The UNT Digital Library
Thermal depletion of a geothermal reservoir with both fracture and pore permeability (open access)

Thermal depletion of a geothermal reservoir with both fracture and pore permeability

A method for estimating the useful lifetime of a reservoir in porous rock where the injection and production wells intersect a fracture system is presented. Equations were derived for the pore-fluid and fracture-fluid temperatures averaged over large regions of the geothermal field. Problems such as incomplete areal sweep and interfingering of cool and hot fluids are ignored. Approximate equations relating average temperatures to the heat flowing from rock to fluid were developed, and their use is justified by comparing the results with solutions of the exact equations. The equations for the temperature decline can be solved quickly. In the model, fractures are characterized by three parameters: aperture w, permeability k/sub fr/, and spacings between fractures D. For certain values of these parameters, cool reinjected fluid in fractures may reach the production wells long before all the warm pore fluid has been tapped, shortening the useful lifetime of the field. The traditional (and important) problems of reservoir engineering, flow rate determination, drawdown, sweep patterns, etc. were ignored. Thus the results are most useful in providing a correction factor which can be applied to lifetime estimates obtained from a detailed simulation of a field assuming porous rock. That correction factor is plotted …
Date: August 10, 1976
Creator: Kasameyer, P.W. & Schroeder, R.C.
Object Type: Report
System: The UNT Digital Library
Boundary-layer control for reducing deposition of solids at a geothermal nozzle wall (open access)

Boundary-layer control for reducing deposition of solids at a geothermal nozzle wall

Deposition of solids at the wall of a nozzle used to expand geothermal brine may be accounted for by a hydrodynamic model describing eddy formation near the wall. A conceptual design of a nozzle with injection of an annular ring of fluid at the wall is presented.
Date: June 10, 1976
Creator: Homsy, Robert V.
Object Type: Report
System: The UNT Digital Library