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Comments on septa and other small production angle magnets (open access)

Comments on septa and other small production angle magnets

A discussion is given of possible septum magnet parameters for small production angle experiments in the ISABELLE storage rings. Superconducting septa and torroidal septa are also considered. (PMA)
Date: August 25, 1977
Creator: Allinger, J.; Danby, G. & Jackson, J.
Object Type: Article
System: The UNT Digital Library
PILOT PLANT SHUTDOWN AND Pu-Al PROCESSING (open access)

PILOT PLANT SHUTDOWN AND Pu-Al PROCESSING

The large aqueous pilot plant facilities at ORNL were cleaned and are being put in standby condition. Experience was gained during the year as anion exchange was used to recover more than one kg of plutonium left in the exploded evaporator system. This experience is being applied to a new recovery program just beginning in cell 1 of Building 4507. (auth)
Date: September 25, 1961
Creator: Bresee, J.C.
Object Type: Report
System: The UNT Digital Library
Configuration Management Program Plan (open access)

Configuration Management Program Plan

Westinghouse Savannah River Company (WSRC) has established a configuration management (CM) plan to execute the SRS CM Policy and the requirements of the DOE Order 4700.1. The Reactor Restart Division (RRD) has developed its CM Plan under the SRS CM Program and is implementing it via the RRD CM Program Plan and the Integrated Action Plan. The purpose of the RRD CM program is to improve those processes which are essential to the safe and efficient operation of SRS production reactors. This document provides details of this plan.
Date: September 25, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Preliminary design data package. Appendices C1 and C3. [HYBRID 2; VSYS; and CRASH] (open access)

Preliminary design data package. Appendices C1 and C3. [HYBRID 2; VSYS; and CRASH]

The computer programs, including HYBRID, VSYS, VEHIC and CRASH, used to compute the energy and fuel consumption, life-cycle costs and performance characteristics of a hybrid electric-powered vehicle are described and their use documented. (LCL)
Date: July 25, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Theoretical study of the structure, energetics, and dynamics of silicon and carbon systems using tight-binding approaches (open access)

Theoretical study of the structure, energetics, and dynamics of silicon and carbon systems using tight-binding approaches

Semiempirical interatomic potentials are developed for silicon and carbon by modeling the total energy of the system using tight-binding approaches. The parameters of the models were obtained by fitting to results from accurate first-principles Local Density Functional calculations. Applications to the computation of phonons as a function of volume for diamond-structured silicon and carbon and the thermal expansions for silicon and diamond yields results which agree well with experiment. The physical origin of the negative thermal expansion observed in silicon is explained. A tight-binding total energy model is generated capable of describing carbon systems with a variety of atomic coordinations and topologies. The model reproduces the total energy versus volume curves of various carbon polytypes as well as phonons and elastic constants of diamond and graphite. The model has also been used in the molecular-dynamics simulation of the properties of carbon clusters. The calculated ground-state geometries of small clusters (C{sub 2}--C{sub 10}) correlates well with results from accurate quantum chemical calculations, and the structural trend of clusters from C{sub 2} to C{sub 60} are investigated. 67 refs., 19 figs.
Date: October 25, 1991
Creator: Xu, Chunhui.
Object Type: Report
System: The UNT Digital Library
EXPERIMENTAL MEASUREMENTS OF THE SUCTION HEAD REQUIRED BY THE HALLAM PROTOTYPE FREE SURFACE SODIUM PUMP (open access)

EXPERIMENTAL MEASUREMENTS OF THE SUCTION HEAD REQUIRED BY THE HALLAM PROTOTYPE FREE SURFACE SODIUM PUMP

Hydraulic tests were made on the Hallam Prototype Free-Surface Sodium Pump to determine the net positive suction head (NPSH) required at various sodium flow rates. Pump performance data were also collected. The results indicate that an NPSH of 22 ft sodium is required at the design flow rate of 7200 gpm at approximates 1000 deg F, agreeing with computed values, and that the pump is designed with a safety margin of slightly over l0%. (D.L.C.)
Date: July 25, 1961
Creator: Atz, R.W.
Object Type: Report
System: The UNT Digital Library
A cryogenic system design for the international thermonuclear experimental reactor (ITER) (open access)

A cryogenic system design for the international thermonuclear experimental reactor (ITER)

A conceptual design for ITER was completed last year. The author developed a suitable cryogenic system for ITER as part of this conceptual design effort. An overview of the design is reported. Emphasis is on the fact that cryogenics is a mature science, and a system supporting ITER needs can be made from time-proven components without loss of efficiency or reliability. Because of the large size of the ITER cryogenic system, large numbers of compressors and expanders must be used. Very high reliability is assured by arranging these components in parallel banks where servicing of individual components can be done without interruption of operations. This and other ideas based on the author's experience with Mirror Fusion Test Facility (MFTF) operations are described. 5 refs., 3 figs.
Date: September 25, 1991
Creator: Slack, D.S.
Object Type: Article
System: The UNT Digital Library
GRAPHITE-STAINLESS STEEL COMPATIBILITY STUDIES (open access)

GRAPHITE-STAINLESS STEEL COMPATIBILITY STUDIES

S>The compatibility of type 304L stainless steel in intimate contact with graphite is being studied as a function of temperature and contact pressure. This study is an outgrowth of materials compatibility problems in present and advanced gas-cooled reactors, where structural members in direct contact with graphite provide the possibility of both carburization and self-welding. Initial studies were concerned with surface reactions in the absence of gaseous contaminants under a vacuum of 10/sup -6/ mm Hg at 540 to 705 deg C. Stainless steel specimens are pretreated to provide three surface conditions: H/sub 2/- fired, preoxidized, and Cu-plated. Surface contact pressures ranged from 0 to 10,000 psi. Test results are presented which establish the lower temperature limit for significant diffusion between graphite and stainless steel at approximately 60O deg C. Above this temperature, diffusion between untreated or H2-fired stainless steel surfaces was found to effect complete bonding of the two materials at contact pressures as low as 500 psi. Bonding was effectively prevented by the presence of either an oxide film or a Cu plate at temperatures up to 700 deg C. Where bonding occurred, diffusion rates measured for C in stainless steel were comparable with those reported for stainless steel …
Date: September 25, 1962
Creator: Fleischer, B.; DeVan, J. H. & Coobs, J. H.
Object Type: Report
System: The UNT Digital Library
Pakistan: A Bibliography (open access)

Pakistan: A Bibliography

This report is a bibliography that cites information related to Pakistan. It includes General, History, Government and Politics, Economy and Development, Foreign policy, and defense.
Date: November 25, 1969
Creator: Patitucci, Jean B.
Object Type: Report
System: The UNT Digital Library
The Military Selective Service Act of 1967:Its Basic Provisions and Implementation by Executive Order 11360 (open access)

The Military Selective Service Act of 1967:Its Basic Provisions and Implementation by Executive Order 11360

This report describes an outline of provisions for Military selective service act of 1967 and changes to it that effected through the executive order 11360.
Date: March 25, 1968
Creator: Stillson, Albert C.
Object Type: Report
System: The UNT Digital Library
Do-It-Yourself Ecology (open access)

Do-It-Yourself Ecology

This report deals with how to develop a good environment.
Date: May 25, 1970
Creator: Environmental Action Inc.
Object Type: Report
System: The UNT Digital Library
Major Natural Disasters in the United States: 1959-1969 (open access)

Major Natural Disasters in the United States: 1959-1969

This report provides a listing of major natural disasters in the United States between 1959 and 1969. It lists the name of the event, the estimated costs of damage, and fatality numbers for each disaster.
Date: February 25, 1970
Creator: Keyser, C. Frank
Object Type: Report
System: The UNT Digital Library
Kilowatt Isotope Power System: component test report for the Ground Demonstration System Alternator Stator (open access)

Kilowatt Isotope Power System: component test report for the Ground Demonstration System Alternator Stator

Results are presented of acceptance tests conducted on the Alternator Stator, S/N 002, for the Kilowatt Isotope Power System. These results show that the Alternator Stator, S/N 002 for the Kilowatt Isotope Power System has satisfactorily completed the testing set forth within Sundstrand Test Specification 2538. Test requirements of TS 2538 were extracted from the Kilowatt Isotope Power System, and Phase I Test Plan.
Date: April 25, 1978
Creator: Brainard, E.L.
Object Type: Report
System: The UNT Digital Library
Advanced Gas Cooled Nuclear Reactor Materials Evaluation and Development Program. Progress report, January 1, 1980-March 31, 1980 (open access)

Advanced Gas Cooled Nuclear Reactor Materials Evaluation and Development Program. Progress report, January 1, 1980-March 31, 1980

Results are presented of work performed on the Advanced Gas-Cooled Nuclear Reactor Materials Evaluation and Development Program. The objectives of this program are to evaluate candidate alloys for Very High Temperature Reactor (VHTR) Nuclear Process Heat (NPH) and Direct Cycle Helium Turbine (DCHT) applications, in terms of the effect of simulated reactor primary coolant (helium containing small amounts of various other gases), high temperatures, and long time exposures, on the mechanical properties and structural and surface stability of selected candidate alloys. A second objective is to select and recommend materials for future test facilities and more extensive qualification programs. Included are the activities associated with the status of the simulated reactor helium supply system, testing equipment and gas chemistry analysis instrumentation and equipment. The progress in the screening test program is described, including screening creep results and metallographic analysis for materials thermally exposed or tested at 750, 850, and 950/sup 0/C.
Date: June 25, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Monthly energy review, October 1991. [Contains glossary] (open access)

Monthly energy review, October 1991. [Contains glossary]

This report presents current data on production, consumption, stocks, imports, exports, and prices of the principal energy commodities in the United States. Also included are data on international production of crude oil, consumption of petroleum products, petroleum stocks, and production of electricity from nuclear-powered facilities. 36 figs., 57 tabs.
Date: October 25, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Assessment of the potential of colloidal fuels in future energy usage. Final report. [97 references] (open access)

Assessment of the potential of colloidal fuels in future energy usage. Final report. [97 references]

Pulverized coal has been an increasing important source of energy over the past century. Most large utility boilers, all modern coking plants, and many industrial boilers and blast furnaces employ pulverized coal as a major feed stream. In periods of oil shortages, such as during World Wars I and II, the concept of adding powdered coal to oil for use in combustion equipment originally designed for oil has been actively pursued but rarely used. Over this same period of time, there have been attempts to use air suspensions of coal dust in diesel engines in Germany, and in turbines in various countries. The economic advantages to be enjoyed by substitution of powdered coal in oil are not generally realized. Oil costs at $30/bbl represent a fuel value of about $5.00/10/sup 6/ Btu; coal at $25/ton is equivalent to approximately $1.00/10/sup 6/ Btu. Although capital costs for the use of coal are higher than those associated with the use of oil, coal is clearly becoming the least costly fuel. Not only are considerable cost advantages possible, but an improvement in balance of payments and an increase in reliability of fuel supplies are other potential benefits. It is therefore recommended that increased …
Date: February 25, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Preliminary design data package. Appendix C (open access)

Preliminary design data package. Appendix C

The design requirements, design philosophy, method and assumptions, and preliminary computer-aided design of the Near-Term Hybrid Vehicle including its electric and heat power units, control equipment, transmission system, body, and overall vehicle characteristics are presented. (LCL)
Date: July 25, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Method and apparatus for aerosol-particle absorption spectroscopy. [DOE patent application] (open access)

Method and apparatus for aerosol-particle absorption spectroscopy. [DOE patent application]

A method and apparatus are described for determining the absorption spectra, and other properties, of aerosol particles. A heating beam source provides a beam of electromagnetic energy which is scanned through the region of the spectrum which is of interest. Particles exposed to the heating beam which have absorption bands within the band width of the heating beam absorb energy from the beam. The particles are also illuminated by light of a wave length such that the light is scattered by the particles. The absorption spectra of the particles can thus be determined from an analysis of the scattered light since the absorption of energy by the particles will affect the way the light is scattered. Preferably the heating beam is modulated to simplify the analysis of the scattered light. In one embodiment the heating beam is intensity modulated so that the scattered light will also be intensity modulated when the particles absorb energy. In another embodiment the heating beam passes through an interferometer and the scattered light reflects the Fourier Transform of the absorption spectra.
Date: June 25, 1981
Creator: Campillo, Anthony J. & Lin, Horn-Bond
Object Type: Patent
System: The UNT Digital Library
In situ instrumentation: final report of a joint EE/ME group study. [Economic utilization of oil shale, some coal deposits and geothermal resources may depend on in situ processing] (open access)
Preliminary proposal: fundamental combustion modeling (open access)

Preliminary proposal: fundamental combustion modeling

None
Date: September 25, 1974
Creator: Gelinas, R. J.
Object Type: Report
System: The UNT Digital Library
Specifications and Fabrication Procedures for Type 3 Neutron Absorber Sections (open access)

Specifications and Fabrication Procedures for Type 3 Neutron Absorber Sections

The specification contains information concerning the material, process, and product requirements to be met by the fabricator. (J.R.D.)
Date: April 25, 1962
Creator: Edgar, E. C. & Clayton, H. R.
Object Type: Report
System: The UNT Digital Library
Fire protection countermeasures for containment ventilation systems (open access)

Fire protection countermeasures for containment ventilation systems

The goal of this project is to find countermeasures to protect High Efficiency Particulate Air (HEPA) filters, in exit ventilation ducts, from the heat and smoke generated by fire. Initially, methods were developed to cool fire-heated air by fine water spray upstream of the filters. It was recognized that smoke aerosol exposure to HEPA filters could also cause disruption of the containment system. Through testing and analysis, several methods to partially mitigate the smoke exposure to the HEPA filters were identified. A continuous, movable, high-efficiency prefilter using modified commercial equipment was designed. The technique is capable of protecting HEPA filters over the total time duration of the test fires. The reason for success involved the modification of the prefiltration media. Commercially available filter media has particle sorption efficiency that is inversely proportional to media strength. To achieve properties of both efficiency and strength, rolling filter media were laminated with the desired properties. The approach was Edisonian, but truncation in short order to a combination of prefilters was effective. The application of this technique was qualified, since it is of use only to protect HEPA filters from fire-generated smoke aerosols. It is not believed that this technique is cost effective in …
Date: August 25, 1980
Creator: Alvares, N.; Beason, D.; Bergman, V.; Creighton, J.; Ford, H. & Lipska, A.
Object Type: Report
System: The UNT Digital Library
Summary of HRT Run 25 (open access)

Summary of HRT Run 25

Run 25 was the final period of power operational of the HRT. The reactor was operated for periods of 62, 8, 52, and 80 hours at 5 Mw with no outward indication of fuel and core and blanket average temperatures of 270 and 230 deg C, respectively. The uranium concentration in the was 1.7 to 2.0 g U/kg D/sub 2/O. Longer periods of operation were prevented by mechanical difficulties, notably with the fuel feed pump. While the reactor was subcritical after the last of the above runs, the upper patch in the core tank wall became dislodged, allowing greater core-to-blanket mixing. The resultant blanket uranium concentration was 2.9 g U/kg D/sub 2/O. The reactor was subsequently operated at April 28, 1961. The experiment was operated at high temperature for a total of 10,866 hours. The system was critical for a total of 8,841 hours and produced 16,295 Mwhours of power. The fuel, heavy water, and some corrosion specimens were recovered, and the reactor was stored in an assembled state. (auth)
Date: July 25, 1962
Creator: Engel, J. R.; Bauman, H. F.; Buchanan, J. R.; Haubenreich, P. N.; Piper, H. B. & Richardson, D. M.
Object Type: Report
System: The UNT Digital Library
Development of a Fluidized Bed Calcination Process for Aluminum Nitrate Wastes in a Two-Foot-Square Plant Calciner. Part 2. Factors Affecting the Intra-Particle Porosity of Alumina (open access)

Development of a Fluidized Bed Calcination Process for Aluminum Nitrate Wastes in a Two-Foot-Square Plant Calciner. Part 2. Factors Affecting the Intra-Particle Porosity of Alumina

A seven- to twenty-fold volume reduction can be obtained from fluidized bed calcination of aqueous aluminum nitrate wastes, depending on the operating conditions employed and their effect on the intra-panticle porosity and absolute density of the calcined alumina. Among the calcining variables, only the bed temperature and the fuel aluminum concentration had a significant effect on the intra-particle porosity of alumina generated during studies conducted primarily in a two-foot-square fluidized bed calciner. A quantitative correlation of the effect of these variables is presented. Alumina with an intra-particle porosity as low as five per cent can be generated by employing a suitable combination of low bed temperature and dilute aluminum feed concentration. Feed sodium concentration and product alpha alumina content were found to have minor effect on intra-particle porosity. Results also show that an inverse relationship exists between the nitrate content of the calcine and the calcination temperature. (auth)
Date: July 25, 1962
Creator: Wheeler, B. R.; Grimmett, E. S. & Buckham, J. A.
Object Type: Report
System: The UNT Digital Library