TRANSIENT RADIATION EFFECTS IN CAPACITORS AND DIELECTRIC MATERIALS (open access)

TRANSIENT RADIATION EFFECTS IN CAPACITORS AND DIELECTRIC MATERIALS

Measurements of dielectric leakage, capacitance, electric strength, andd charge scattering phenomena were performed at the Kukla and Godiva III critical assemblies for tantalum and aluminum electrolytic, wax- and oilimpregnated paper, mylar, mica, and ceramic capacitors, and for mylar and Vitamin B-impregnated paper. Leakage data indicate that gamma induced conductivity in capacitor dielectric varies directly with gamma DELTA , where gamma is the gamma radiation rate and DELTA is 0.9 for mylar, 0.7 for Vitamin Q-impregnated paper, and approximately 1.0 for the other dielectrics. A small portion of the tantalum oxide conductivity induced by gamma radiation exhibited a recovery time of approximately 150 mu s. Transient capacitance changes due to radiation were non- existent within plus or minus 0.1% for mica and Vitamin Q capacitors. Transient charging of tantalum capacitors was noted during irradiation with no applied voltage. No drastic changes in electric strength were noted during irradiation of mylar and Vitamin Q-impregnated paper. Results are compared with a summary of data previously collected by others. The use of test data in parametric form as a tool for predicting transient radiation effects is discussed. (auth)
Date: August 15, 1961
Creator: Wicklein, H. W. & Dickhaut, R. H.
Object Type: Book
System: The UNT Digital Library
Reactor Development Program Progress Report (for) July 1961 (open access)

Reactor Development Program Progress Report (for) July 1961

A summary is presented of activities in reactor and general engineering research programs. Discussions are included for developments in EBWR, BORAX-V, ZPR-III. ZPR-VI, ZPR-IX, EBR-I, and EBR-II. Reactor safety studies were performed for fast and thermal reactors. Nuclear technology developments are discussed for applied nuclear and reactor physics, reactor fuels and materials development, heat engineering studies, separations processes, and advanced reactor concepts. (B.O.G.)
Date: August 15, 1961
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Preliminary Bibliography on the 1978-79 Intercollegiate Debate Topic. (open access)

Preliminary Bibliography on the 1978-79 Intercollegiate Debate Topic.

This preliminary bibliography has been prepared for the 1978-79 Intercollegiate Debate regarding guaranteed employment.
Date: August 15, 1978
Creator: Roth, Dennis & Beske, Kurt
Object Type: Report
System: The UNT Digital Library
CDC 7600 LTSS programming stratagens: preparing your first production code for the Livermore Timesharing System (open access)

CDC 7600 LTSS programming stratagens: preparing your first production code for the Livermore Timesharing System

This report deals with some techniques in applied programming using the Livermore Timesharing System (LTSS) on the CDC 7600 computers at the National Magnetic Fusion Energy Computer Center (NMFECC) and the Lawrence Livermore Laboratory Computer Center (LLLCC or Octopus network). This report is based on a document originally written specifically about the system as it is implemented at NMFECC but has been revised to accommodate differences between LLLCC and NMFECC implementations. Topics include: maintaining programs, debugging, recovering from system crashes, and using the central processing unit, memory, and input/output devices efficiently and economically. Routines that aid in these procedures are mentioned. The companion report, UCID-17556, An LTSS Compendium, discusses the hardware and operating system and should be read before reading this report.
Date: August 15, 1977
Creator: Fong, K. W.
Object Type: Report
System: The UNT Digital Library
AN INFORMATION STORAGE AND RETRIEVAL SYSTEM FOR IRRADIATION EFFECTS IN METALS (open access)

AN INFORMATION STORAGE AND RETRIEVAL SYSTEM FOR IRRADIATION EFFECTS IN METALS

An information storage and retrieval system (PIC) was developed, utilizing the IBM 7090 computer, for handling data pertaining to the effects of neutron irradiation on metals. The input includes a reference identification, an appropriate abstract or extract summarizing the article, code identification parameters analogous to those used by the ASM-SLA Literature Classification System, and special codes identifying relevant irradiation and testing parameters. The output contains the same data plus printing out the meaning of all special codes. Presently, the information storage consists of more than two hundred references representing several thousand lines of information. The system is both general and definitive, permitting the selection of a single piece of information or of many references dealing with a general field. It is possible to select material on the basis of one or more of the following factors: material, general or specific; type of literature; general or specific property such as mechanical tests or tensile tests; conditions of irradiation including type and level of flux, integrated flux, irradiation temperature, and reactor environment; test conditions such as temperature and environment; and general variables that might be controlling such as strain rate, specimen geometry, grain size, and fabrication history. It is felt that this …
Date: August 15, 1963
Creator: Bush, S. H.
Object Type: Article
System: The UNT Digital Library
Requirements for signal cables and off-line data processing (open access)

Requirements for signal cables and off-line data processing

The number and types of cables for various experiments planned for the ISABELLE storage rings are estimated, and the results of a questionnaire on anticipated data taking rates are discussed. Necessary data acquisition rates, data storage capabilities, and data processing rates are estimated. (PMA)
Date: August 15, 1977
Creator: Strand, R.
Object Type: Article
System: The UNT Digital Library
Toxicology and metabolism of nickel compounds. Progress report, December 1, 1979-November 30, 1980 (open access)

Toxicology and metabolism of nickel compounds. Progress report, December 1, 1979-November 30, 1980

The toxicology and metabolism of nickel compounds (e.g., NiCl/sub 2/, ..cap alpha..Ni/sub 3/S/sub 2/, and Ni(CO)/sub 4/) were investigated in rats and hamsters.
Date: August 15, 1980
Creator: Sunderman, Jr, F W
Object Type: Report
System: The UNT Digital Library
Metallic coating of microspheres (open access)

Metallic coating of microspheres

Extremely smooth, uniform metal coatings of micrometer thicknesses on microscopic glass spheres (microspheres) are often needed as targets for inertial confinement fusion (ICF) experiments. The first part of this paper reviews those methods used successfully to provide metal coated microspheres for ICF targets, including magnetron sputtering, electro- and electroless plating, and chemical vapor pyrolysis. The second part of this paper discusses some of the critical aspects of magnetron sputter coating of microspheres, including substrate requirements, the sticking of microspheres during coating (preventing a uniform coating), and the difficulties in growing the desired dense, smooth, uniform microstructure on continuously moving spherical substrates.
Date: August 15, 1980
Creator: Meyer, S.F.
Object Type: Article
System: The UNT Digital Library
Augmented Fish Health Monitoring, 1988 Annual Report. (open access)

Augmented Fish Health Monitoring, 1988 Annual Report.

Augmented Fish Health Monitoring Contract AI79-87BP35585 was implemented on July 20, 1987. Second year activities focused on full implementation of disease surveillance activities and histopathological support services to participating state agencies. Persistent and sometimes severe disease losses were caused by infectious hematopoietic necrosis (IHN) in summer steelhead trout in Idaho and in spring chinook salmon at hatcheries on the lower Columbia River. Diagnostic capability was enhanced by the installation, for field use, of enzyme-linked immunosorbent assay (ELISA) technology at the Dworshak Fish Health Center for the detection and assay of bacterial kidney disease and by a dot-blot'' training session for virus identification at the Lower Columbia Fish Health Center. Complete diagnostic and inspection services were provided to 13 Columbia River basin National Fish hatcheries. Case history data was fully documented in a computerized data base for storage and analysis. This report briefly describes work being done to meet contract requirements for fish disease surveillance at Service facilities in the Columbia River basin. It also summarizes the health status of fish reared at those hatcheries and provides a summary of case history data for calendar year 1988. 2 refs., 4 tabs.
Date: August 15, 1989
Creator: Warren, James W.
Object Type: Report
System: The UNT Digital Library
Review of hydrogen isotope permeability through materials (open access)

Review of hydrogen isotope permeability through materials

This report is the first part of a comprehensive summary of the literature on hydrogen isotope permeability through materials that do not readily form hydrides. While we mainly focus on pure metals with low permeabilities because of their importance to tritium containment, we also give data on higher-permeability materials such as iron, nickel, steels, and glasses.
Date: August 15, 1983
Creator: Steward, S.A.
Object Type: Report
System: The UNT Digital Library
Development and demonstration of the use of modular thermo-mechanical pulpmill simulation models to develop energy reduction strategies (open access)

Development and demonstration of the use of modular thermo-mechanical pulpmill simulation models to develop energy reduction strategies

The Institute of Paper Science and Technology (IPST) has received a project grant from the US DOE to develop and demonstrate the use of realtime process simulation modeling as a means of process analysis and optimization. The Project, to be conducted under the auspices of the International Energy Agency (IEA), will target a Thermo-Mechanical Pulping (TMP) operation as the site for the commercial implementation of the technology. IPST and a sub-contractor, SACDA Inc. (SACDA), will cooperate in a two-to-three year effort to produce an on-line simulation program having both steady-state and dynamic modeling capabilities. The Project will take advantage of a current IPST and SACDA joint development effort to merge the IPST's MAPPS (Modular Analysis of Pulp and Paper Systems) program with SACD's MASSBAL program. Using the combined proprietary programs, realtime'' steady-state and dynamic TMP models will be developed and installed as part of a millwide'' information/analysis system. By utilizing the Performance Attribute (PAT) Modeling concept developed at IPST, the models will have the capability of optimizing energy usage and other process operating variables as a function of pulp quality. The primary goal of the Project is to demonstrate that on-line simulation models can provide assistance to operators and managers …
Date: August 15, 1991
Creator: Rushton, J.D.; Jones, G.L. (Institute of Paper Science and Technology, Atlanta, GA (United States)); Leaver, E.L. & Morton, W. (SACDA, Inc. (United States))
Object Type: Report
System: The UNT Digital Library
Superconducting Critical Field of Tantalum as a Function of Temperature and Pressure (open access)

Superconducting Critical Field of Tantalum as a Function of Temperature and Pressure

None
Date: August 15, 1961
Creator: Hinrichs, C. H. & Swenson, C. A.
Object Type: Article
System: The UNT Digital Library
Instrumentation and Control Branch Annual Report, 1971 (open access)

Instrumentation and Control Branch Annual Report, 1971

None
Date: August 15, 1972
Creator: Smith, G. L.
Object Type: Report
System: The UNT Digital Library
Thermoelectric Materials. Final Report, January 28, 1959-July 28, 1960 (open access)

Thermoelectric Materials. Final Report, January 28, 1959-July 28, 1960

BS> A method for the measurement of thermal conductivities of electrically conducting materials at temperatures in excess of 1000 deg C with a high accuracy was devised. The spatial boron concentration gradient in boron- doped graphite to achieve maximum p-type thermoelectric output was established. The production of an n-type silicon carbide-graphite composit was studied. Theoretical studies produced a detailed picture of the effect of doping on the electronic properties of graphite. A method was developed for the preparation of rare earth nitrides in a good state of purity. Electrical studies of the materials produced showed that several of the compounds are semiconductors as had been predicted. (M.C.G.)
Date: August 15, 1960
Creator: Brechenridge, R. G.
Object Type: Report
System: The UNT Digital Library
Annual Progress Report on Fuel Element Development for FY 1962 (open access)

Annual Progress Report on Fuel Element Development for FY 1962

Activities in a project aimed at the improvement of fuel elements for high flux test reactors are reported. The investigation of new fuel compositions, distributions, and geometries is being undertaken to increase fuel life, to improve the flux distribution, and to provide a means of safely reaching higher reactor operating power and power density in these reactors. The effects of nuclear irradiation on the fuel and structural materials is being studied to predict the performance of these materials in more advanced reactor designs. A summary of the past year's progress is given and the fabrication and irradiation of samples containing up to 50 wt % U--Al alloys, cermets of UO/sub 2/, U/sub 3/O/ sub 8/, UC, UN, U/sub 3/Si, and Al, clad in various Al an d Be--Al materials is described. The use of ThO/sub 2/ and Th cores, the addition of BeO to cermet cores and high density fuei cores of U--Al intermetailics produced by powder metallurgy techniques were studied during the year. High strength APM claddings involving Al/sub 2/O/sub 3/ contents from 8 to 10% were tested and indicate the need for improved quality control of the APM material. Duplex claddings involving burnable poison layers and APM clad …
Date: August 15, 1962
Creator: Gibson, G. W. & Francis, W. C.
Object Type: Report
System: The UNT Digital Library
Temporary Unemployment Insurance Provisions (open access)

Temporary Unemployment Insurance Provisions

This report discusses several key provisions related to extended federal unemployment benefits that are temporary and, therefore, scheduled to expire. This report describes the consequences of these expirations for the financing and availability of unemployment benefits in states. It also summarizes the last three laws that have extended these expiring provisions: P.L. 112-240, P.L. 112-96, and P.L. 112-78.
Date: August 15, 2013
Creator: Isaacs, K. P.
Object Type: Report
System: The UNT Digital Library
Sex Trafficking of Children in the United States: Overview and Issues for Congress (open access)

Sex Trafficking of Children in the United States: Overview and Issues for Congress

Report concerning Congressional attention on the domestic sex trafficking of children.
Date: August 15, 2012
Creator: Finklea, Kristin M.; Fernandes-Alcantara, Adrienne L. & Siskin, Alison
Object Type: Report
System: The UNT Digital Library
Mexico's Peña Nieto Administration: Priorities and Key Issues in U.S.-Mexican Relations (open access)

Mexico's Peña Nieto Administration: Priorities and Key Issues in U.S.-Mexican Relations

This report provides an introduction of Mexico during Peña Nieto administration. The report discusses key issues of congressional interest in the bilateral relationship.
Date: August 15, 2013
Creator: Ribando Seelke, Clare
Object Type: Report
System: The UNT Digital Library
Keystone XL: Assessing the Proposed Pipeline's Impacts on Greenhouse Gas Emissions (open access)

Keystone XL: Assessing the Proposed Pipeline's Impacts on Greenhouse Gas Emissions

This report provides background information regarding the Keystone XL pipeline proposal and the process required for federal approval. The report discusses the state department's GHG emissions assessment and provides concluding observations.
Date: August 15, 2013
Creator: Lattanzio, Richard K.
Object Type: Report
System: The UNT Digital Library
The Affordable Care Act and Small Business: Economic Issues (open access)

The Affordable Care Act and Small Business: Economic Issues

This report explains how employer-sponsored insurance can be used to address concerns about health insurance coverage and cost. Then, it summarizes the three ACA provisions most relevant to small businesses. Also, it analyzes these provisions for their potential effects on small businesses. Last, this report presents several approaches that could address some concerns associated with these provisions (particularly the employer penalty).
Date: August 15, 2013
Creator: Lowry, Sean & Gravelle, Jane G.
Object Type: Report
System: The UNT Digital Library
Financing Natural Catastrophe Exposure: Issues and Options for Improving Risk Transfer Markets (open access)

Financing Natural Catastrophe Exposure: Issues and Options for Improving Risk Transfer Markets

This report opens with an examination of the current role of private insurers in managing disaster risk and their capacity and willingness to deal with the rising cost of financing recovery and reconstruction following natural disasters. The report then examines the current role of federal, state, and local governments in managing disaster risk.
Date: August 15, 2013
Creator: King, R. O.
Object Type: Report
System: The UNT Digital Library
Executive Correspondence: Post-Hearing Questions Related to Department of Defense Base Realignment and Closure (BRAC) Recommendations (open access)

Executive Correspondence: Post-Hearing Questions Related to Department of Defense Base Realignment and Closure (BRAC) Recommendations

Executive Correspondence: Post-Hearing Questions Related to Department of Defense Base Realignment and Closure (BRAC) Recommendations GAO memorandum provides following to questions asked at the July 1, 2005 hearing
Date: August 15, 2005
Creator: unknown
Object Type: Letter
System: The UNT Digital Library
545 letters from local citizens in support of Niagara USAF Reserve Base (open access)

545 letters from local citizens in support of Niagara USAF Reserve Base

Community Correspondence - 545 letters from local citizens in support of Niagara USAF Reserve Base
Date: August 15, 2005
Creator: unknown
Object Type: Letter
System: The UNT Digital Library
538 letters from local citizens in support of Niagara USAF Reserve Base (open access)

538 letters from local citizens in support of Niagara USAF Reserve Base

Community Correspondence - 538 letters from local citizens in support of Niagara USAF Reserve Base
Date: August 15, 2005
Creator: unknown
Object Type: Letter
System: The UNT Digital Library