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Measurement of energy deposited by charged-particle beams in composite targets

Description: We have measured the energy deposited in two types of composite targets by a number of charged-particle beams: targets made of /sup 238/U, Lucite, and polyethylene were exposed to 0.26-GeV protons and 0.33-GeV deuterons, and aluminum-Lucite composites were exposed to 0.5-GeV electrons. In addition, we measured neutrons and gamma rays emitted from solid targets of various materials (including /sup 238/U and iron) exposed to 0.26-GeV protons and 0.33-GeV deuterons. We used passive detectors (ther… more
Date: July 2, 1980
Creator: Farley, E.; Becker, J.; Crase, K.; Howe, R. & Selway, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Piqua Nuclear Power Facility Radiological Surveillance Program

Description: Results of the annual radiological survey of the retired Piqua Nuclear Facility in Piqua, Ohio are presented in this report. The overall survey did not reveal the existence of any significant changes within the facility. This survey marked the inception of a surface soil sampling program. Analysis of the soil revealed that concentrations of radioactivity are comparable to those found at other locations in Ohio. (DMC)
Date: March 2, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhanced durability and reactivity for zinc ferrite desulfurization sorbent

Description: AMAX Research Development Center (AMAX R D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-… more
Date: May 2, 1989
Creator: Jha, M. C. & Berggren, M. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhanced Durability and Reactivity for Zinc Ferrite Desulfurization Sorbent

Description: AMAX Research Development Center (AMAX R D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-… more
Date: May 2, 1989
Creator: Silaban, A. & Harrison, D.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recovery and reuse of asphalt roofing waste. Final report

Description: Burning of asphalt roofing waste as a fuel and incorporating asphalt roofing waste in bituminous paving were identified as the two outstanding resource recovery concepts out of ten studied. Four additional concepts might be worth considering under different market or technical circumstances. Another four concepts were rated as worth no further consideration at this time. This study of the recovery of the resource represented in asphalt roofing waste has identified the sources and quantities of … more
Date: February 2, 1984
Creator: Desai, S.; Graziano, G. & Shepherd, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Transducer characterization

Description: This report has been prepared specifically for ultrasonic transducer users within the Nondestructive Testing Evaluation (NDE) community of the weapons complex. The purpose of the report is to establish an initial set of uniform procedures for measuring and recording transducer performance data, and to establish a common foundation on which more comprehensive transducer performance evaluations may be added as future transducer performance criteria expands. Transducer parameters and the problems … more
Date: July 2, 1980
Creator: Cross, B. T.; Eoff, J. M.; Schuetz, L. J. & Cunningham, K. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Milliwatt generator heat source. Progress report, July-December 1983

Description: All LANL hardware requirements were met during the reporting period as scheduled. Lot 12 of T-111 alloy sheet and Lot 8 of yttrium platelets were procured to meet future WR production needs. The GEND IP schedule requirements for 49 fueled MC2893 heat sources were met. Pressure burst surveillance activities continued to be conducted in accordance with SNLA document BB328965. Final results of evaluations of two pressure-burst capsules were normal, suggesting that the corresponding heat sources sh… more
Date: March 2, 1984
Creator: Mershad, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Seismic Safety Margins Research Program: Phase II program plan (FY 83-FY 84)

Description: The Seismic Safety Margins Research Program (SSMRP) is an NRC-funded, multiyear program conducted by Lawrence Livermore National Laboratory (LLNL). Its goal is to develop a complete, fully coupled analysis procedure (including methods and computer codes) for estimating the risk of an earthquake-caused radioactive release from a commercial nuclear power plant. The analysis procedure is based upon a state-of-the-art evaluation of the current seismic analysis and design process and explicitly incl… more
Date: August 2, 1982
Creator: Bohn, M. P.; Bernreuter, D. L.; Cover, L. E.; Johnson, J. J.; Shieh, L. C.; Shukla, S. N. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Magnetic fusion energy annual report, July 1975--September 1976

Description: Supporting research activities continued to provide the technical basis for future mirror-confinement experiments. The industrial development of a high-current, high-field, high-current-density Nb/sub 3/Sn conductor was the main goal of the superconducting magnet program. Beam direct conversion was being developed as a means of raising the efficiency of neutral-beam production, and plasma direct conversion was shown to work as predicted. Conceptual designs were completed for various types of po… more
Date: December 2, 1976
Creator: Harrison, M.A.; McGregor, C.K. & Gottlieb, L. (eds.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Materials selection of surface coatings in an advanced size reduction facility. [For decommissioned stainless steel equipment]

Description: A materials selection test program was conducted to characterize optimum interior surface coatings for an advanced size reduction facility. The equipment to be processed by this facility consists of stainless steel apparatus (e.g., glove boxes, piping, and tanks) used for the chemical recovery of plutonium. Test results showed that a primary requirement for a satisfactory coating is ease of decontamination. A closely related concern is the resistance of paint films to nitric acid - plutonium en… more
Date: June 2, 1980
Creator: Briggs, J. L. & Younger, A. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interim report on concreted uranium fines and chips billet curing tests: a basis for resuming shipment of concreted uranium scrap billets

Description: Through extensive testing and analyses of the concretion process, billets and shipping conditions, it has been determined that properly cured concreted billets can be safely shipped to National Lead Company of Ohio (NLO), Fernald. During curing, billets will be dried for 26 days prior to shipment with the last 10 days between 54 to 66/sup 0/C (130 to 150/sup 0/F). Such dried billets can withstand temperatures up to 85/sup 0/C (185/sup 0/F). The maximum billet temperature that can be expected to… more
Date: May 2, 1980
Creator: Weakley, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tomography of laser fusion plasmas

Description: Experimental programs exist in a number of laboratories throughout the world to test the feasibility of using powerful laser systems to drive the implosion of hydrogen isotope fuel to thermonuclear burn conditions. In a typical experiment multiple laser beams are focused onto a glass microshell (typically 50 ..mu..m to 200 ..mu..m diameter) filled with an equimolar D-T gas mixture. X-ray and particle emissions from the target provide important information about the hydrodynamic implosion of the… more
Date: August 2, 1977
Creator: Ceglio, N.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

WACC-WTG Review Comment Sheets

Description: This report is a letter about a review of the Quality Assurance Project Plan for the INEL Waste Isolation Pilot Plant Waste Characterization Project.'' The author of the letter recommended the approval of the quality assurance program. However in his review, several observations were made and were requested to be added to the program. Examples of these observations were safety of personnel involved in the program, safe characterization of hazardous materials studied, quality of calibrations req… more
Date: April 2, 1991
Creator: Spencer, W. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analytical qualification of system identification (modal analysis) codes for use in the dynamic testing of nuclear power plant structures

Description: The analytical evaluation of two particular system identification codes used at Lawrence Livermore Laboratory is presented. Both codes are eigenparameter identification codes; however, one uses a time domain approach while the other a frequency domain approach. The evaluation was accomplished by analytically generating several time history signals in which the true modal parameters were known. These time histories ranged from widely spaced modes with spacing factors of 100 percent to closely sp… more
Date: January 2, 1980
Creator: Weaver, H.J.; Ng, D. & Lager, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Growth of Second Phase Particles in a Copper--Beryllium Alloy. Final Technical Report

Description: Growth of second phase particles from a solid solution of copper-beryllium was studied to determine this alloy's suitability for acoustic emission testing. Optical and Scanning Electron microscopes were used to study the microstructure. Micro and macro hardness tests were also performed. A hardness curve for aging at 550/sup 0/F was determined. Microscopic examination revealed the presence of large inclusions which make this alloy unsuitable for the acoustic tests envisioned.
Date: June 2, 1977
Creator: Bunch, R.; Wells, R. & Mukherjee, A. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tandem mirror experiment-upgrade vacuum system: a new configuration and operating parameters

Description: The Tandem Mirror Experiment-Upgrade (TMX-U) vacuum system has been installed and operating since December 1981. In 1982 and early 1983 the performance of the internal, dynamic pumping system was evaluated during physics experiments. The plasma region gas loads caused the pressure to exceed that allowable for achieving thermal barrier plasmas. The unified, multiple-beamline concept used on TMX-U to pump the neutral-beam injector gas was modified. The modifications to the system were designed to… more
Date: December 2, 1983
Creator: Lang, D. D.; Calderon, M. O.; Hunt, A.; Nexsen, W. E.; Pickles, W. L. & Turner, W. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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
Partner: UNT Libraries Government Documents Department
open access

Synthesis of a naphthalene-hydroxynaphthalene polymer model compound

Description: The objective of this project was the synthesis of one pound of a new naphthalene-hydroxynaphthalene polymer model compound for use in coal combustion studies. Since this compound was an unreported compound, this effort also required the development of a synthetic route to this compound (including routes to the unique and unreported intermediates leading to its synthesis).
Date: October 2, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ambient-temperature Conditioning as a Probe of Double-C Transformation Mechanisms in Pu-2.0 at. % Ga

Description: The gallium-stabilized Pu-2.0 at. % Ga alloy undergoes a partial or incomplete low-temperature martensitic transformation from the metastable {delta} phase to the gallium-containing, monoclinic {alpha}{prime} phase near -100 C. This transformation has been shown to occur isothermally and it displays anomalous double-C kinetics in a time-temperature-transformation (TTT) diagram, where two nose temperatures anchoring an upper- and lower-C describe minima in the time for the initiation of transfor… more
Date: April 2, 2008
Creator: Jeffries, J R; Blobaum, K M; Wall, M A & Schwartz, A J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effect of rogue particles on the sub-surface damage of fused silica during grinding/polishing

Description: The distribution and characteristics of surface cracks (i.e., sub-surface damage or scratching) on fused silica formed during grinding/polishing resulting from the addition of rogue particles in the base slurry has been investigated. Fused silica samples (10 cm diameter x 1 cm thick) were: (1) ground by loose abrasive grinding (alumina particles 9-30 {micro}m) on a glass lap with the addition of larger alumina particles at various concentrations with mean sizes ranging from 15-30 {micro}m, or (… more
Date: May 2, 2007
Creator: Suratwala, T I; Steele, R; Feit, M D; Wong, L; Miller, P E; Menapace, J A et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ge Interface Engineering with Ozone-oxidation for Low Interface State Density

Description: Passivation of Ge has been a critical issue for Ge MOS applications in future technology nodes. In this letter, we introduce ozone-oxidation to engineer Ge/insulator interface. Interface states (D{sub it}) values across the bandgap and close to conduction bandedge were extracted using conductance technique at low temperatures. D{sub it} dependency on growth conditions was studied. Minimum D{sub it} of 3 x 10{sup 11} cm{sup -2} V{sup -1} was demonstrated. Physical quality of the interface was in… more
Date: June 2, 2008
Creator: Kuzum, Duygu; Krishnamohan, T.; Pethe, Abhijit J.; Okyay, Ali K.; Oshima, Yasuhiro; Sun, Yun et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effect of Casting Conditions and Composition on Microstructural Gradients in Roll Cast Aluminum Alloys

Description: Twin Roll Casting (TRC) is a process by which thin strip is produced directly from molten metal. This process has many advantages over traditional Direct Chill (DC) casting where metal is cast into large slabs or ingots and subsequently hot and cold rolled into strips. While the DC casting involves large capital investment and energy consumption, TRC produces strip with thickness in the range of 10 mm to 2.5 mm in one operation without hot rolling, with less cost, energy usage and equipment req… more
Date: May 2, 2008
Creator: Patterson, Burton R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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