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Measurement of the neutron spectra from the decay of the giant quadrupole resonance in /sup 238/U

Description: We have performed the coincidence experiments (..cap alpha..,..cap alpha..'f) and (..cap alpha..,..cap alpha..'nf) on /sup 238/U for a beam energy E/sub ..cap alpha../ = 120 MeV and for ..cap alpha..-scattering angles theta/sub ..cap alpha..'/ = 9/sup 0/, 15/sup 0/, and 17/sup 0/. The 9/sup 0/ and 17/sup 0/ data correspond to maxima in the angular distribution for the isoscalar giant quadrupole resonance, whereas the 15/sup 0/ data lie close to a minimum. Using a set of fission counters which covered roughly 80% of 4..pi.., we were able to reject neutrons associated with fission in the (..cap alpha..,..cap alpha..'n) spectrum. We present a first look at these spectra. 9 refs., 3 figs.
Date: January 1, 1985
Creator: Countryman, P. J.; Griffioen, K. A.; Oremland, N. Z.; Van Bibber, K.; Yearian, M. R.; Calarco, J. R. et al.
Partner: UNT Libraries Government Documents Department

Geothermal systems of the Mono Basin-Long Valley region, eastern California and western Nevada

Description: The region that includes Mono Basin, Long Valley, the Bridgeport-Bodie Hills area, and Aurora, in eastern California and western Nevada was studied to determine the possible causes and interactions of the geothermal anomalies in the Mono Basin-Long Valley region as a whole. A special goal of the study was to locate possible shallow bodies of magma and to determine their influence on the hydrothermal systems in the region. (ACR)
Date: January 1, 1985
Creator: Higgins, C. T.; Flynn, T.; Chapman, R. H.; Trexler, D. T.; Chase, G. R.; Bacon, C. F. et al.
Partner: UNT Libraries Government Documents Department

Research and development of new ultraphosphate laser glasses

Description: Requirements for Zeus laser glass and HAP laser glass were small {sigma}, low water, low concentration quenching and high mechanical and thermal strength in the former and high {sigma}, low water, low concentration quenching and high mechanical, thermal shock resistance in the later. In order to get a high mechanical and thermal shock resistance, we introduced SiO{sub 2} into phosphate glass, because SiO{sub 2} gives a low expansion coefficient. In this report, we discuss the research and development of the laser glass. Chemical durability, water content, lasing properties, mechanical and thermo-mechanical properties, glass composition and glass structures are discussed.
Date: January 30, 1985
Creator: Izumitani, T.; Toratani, H.; Matsukawa, T.; Kanamori, C. & Miyade, H.
Partner: UNT Libraries Government Documents Department

Micelle-derived catalysts for extended Schulz-Flory

Description: Our objective is to develop a catalyst for making gasoline or diesel range fuel selectively from synthesis gas. Our catalyst development approach is to provide a cut-off for the higher end of the hydrocarbon distribution by limiting the size of the active metal particle. We are using a micelle technique for preparing specific size ruthenium particles supported on [gamma]-alumina. Hydrocarbon cut-off was not observed with 40--60 [Angstrom] ruthenium particles on [gamma]-alumina. We could not determine whether smaller ruthenium particles would provide cut-off since they agglomerated during the test, apparently through the formation of ruthenium carbonyl. In order to determine whether ruthenium migration can be eliminated under a new set of testing conditions, we evaluated the effect of H[sub 2]:CO feed gas ratio and the effect of total pressure on ruthenium migration. Ruthenium migration was significantly suppressed but not totally eliminated by increasing the H[sub 2]:CO feed gas ratio from 0.9 to 3.0. At the same H[sub 2]:CO feed gas ratio, lowering the total pressure from 500 psig to 150 psig enhanced ruthenium migration. During the next quarter, the use of high pressure in conjunction with high H[sub 2]:CO feed gas ratio will be evaluated to eliminate ruthenium migration. In case agglomeration of small ruthenium particles cannot be totally eliminated, products initially obtained during a test will be carefully examined to determine whether cut-off occurs prior to ruthenium agglomeration.
Date: January 1, 1985
Creator: Abrevaya, H.
Partner: UNT Libraries Government Documents Department

Establishing feasibility for providing passive cooling with solar updraft and evaporative downdraft chimneys

Description: The solar updraft and a natural evaporative downdraft tower built onto an existing residence structure and a greenhouse were completed and operating. Performance data for the hottest days of June, July, and August, 1985 are included. (MHR)
Date: January 1, 1985
Creator: Cunningham, W. A. & Migon, G. V.
Partner: UNT Libraries Government Documents Department

Deep observation and sampling of the earth's continental crust (DOSECC). Final report

Description: The need to validate and refine concepts regarding the structure, properties, and dynamic processes of the earth's continental crust through the use of the drill was the subject of the workshop sponsored by DOSECC, Inc. and held April 29 through May 1, 1985 in Houston, Texas and attended by more than 145 scientists. Scientific objectives and targets for a program of research drilling as part of basic studies of the continental lithosphere were discussed, with over 30 scientific proposals presented. Individual drilling proposals were grouped under several themes; basement structures and deep continental basins, active fault zones, thermal regimes and fossil mineralized hydrothermal/magma systems.
Date: May 1, 1985
Partner: UNT Libraries Government Documents Department

Studies of aluminum in rat brain

Description: The effects of high aluminum concentrations in rat brains were studied using /sup 14/C autoradiography to measure the uptake of /sup 14/C 2-deoxy-D-glucose (/sup 14/C-2DG) and microbeam proton-induced x-ray emission (microPIXE) with a 20-..mu..m resolution to measure concentrations of magnesium, aluminum, potassium, and calcium. The aluminum was introduced intracisternally in the form of aluminum tartrate (Al-T) while control animals were given sodium tartrate (Na-T). The /sup 14/C was administered intravenously. The animals receiving Al-T developed seizure disorders and had pathological changes that included cerebral cortical atrophy. The results showed that there was a decreased uptake of /sup 14/C-2DG in cortical regions in which increased aluminum levels were measured, i.e., there is a correlation between the aluminum in the rat brain and decreased brain glucose metabolism. A minimum detection limit of about 16 ppM (mass fraction) or 3 x 10/sup 9/ Al atoms was obtained for Al under the conditions employed. 14 refs., 4 figs., 1 tab.
Date: January 1, 1985
Creator: Lipman, J. J.; Brill, A. B.; Som, P.; Jones, K. W.; Colowick, S. & Cholewa, M.
Partner: UNT Libraries Government Documents Department

Sources for proportional tube gain variation: What to do about it

Description: In the high-energy domain systematic uncertainties become a substantial fraction of attainable energy resolution of a proportional tube electromagnetic calorimeter. Sources of nonuniformity and fluctuation of calorimeter response are discussed and test data on the magnitude of the effects are presented. Possible ways of maintaining these effects under control are discussed and test data are discussed which demonstrated that such effects could in fact be monitored and corrected to less than 1%.
Date: October 1, 1985
Creator: Fukui, Y.; Mishina, M.; Hayashide, Y.; Kanda, S.; Kim, S.; Kondo, K. et al.
Partner: UNT Libraries Government Documents Department

An Electroweak Enigma: Hyperon Radiative Decays

Description: The main thrust of this experiment will be to measure the asymmetry parameter for the electroweak decay {Sigma}{sup +} {yields} p{gamma} and verify its branching ratio. As a secondary goal they will measure, or set new upper limits for, the branching ratio of the electroweak decay {Xi}{sup -} {yields} {Sigma}{sup -}{gamma}. Since the {Xi}{sup -} are expected to be polarized, information on the asymmetry parameter may also be available.
Date: April 3, 1985
Creator: Vorobyov, A.; Jastrzembski, E.; Lach, J.; Marriner, J.; Golovtsov, V.; Krivshich, A. et al.
Partner: UNT Libraries Government Documents Department

Rapidly solidified ceramics: Processing, structure, and magnetic properties

Description: Since its initiation in September 1984, work under this contract has progressed in two areas: construction of a gas atomizer for rapid solidification of ceramics; and characterization of rapidly solidified materials in the SrO-Fe{sub 2}O{sub 3}, BaO-Fe{sub 2}O{sub 3}, MnFe{sub 2}O{sub 4}-SiO{sub 2}, and CoFe{sub 2}O{sub 4}-SiO{sub 2} systems. This report summarize this work.
Date: January 1, 1985
Creator: Kalonji, G. M. & O'Handley, R. C.
Partner: UNT Libraries Government Documents Department

Micelle-derived catalysts for extended Schulz-Flory. Technical progress report, October 1, 1985--12/31/85

Description: Our objective is to develop a catalyst for making gasoline or diesel range fuel selectively from synthesis gas. Our catalyst development approach is to provide a cut-off for the higher end of the hydrocarbon distribution by limiting the size of the active metal particle. We are using a micelle technique for preparing specific size ruthenium particles supported on {gamma}-alumina. Hydrocarbon cut-off was not observed with 40--60 {Angstrom} ruthenium particles on {gamma}-alumina. We could not determine whether smaller ruthenium particles would provide cut-off since they agglomerated during the test, apparently through the formation of ruthenium carbonyl. In order to determine whether ruthenium migration can be eliminated under a new set of testing conditions, we evaluated the effect of H{sub 2}:CO feed gas ratio and the effect of total pressure on ruthenium migration. Ruthenium migration was significantly suppressed but not totally eliminated by increasing the H{sub 2}:CO feed gas ratio from 0.9 to 3.0. At the same H{sub 2}:CO feed gas ratio, lowering the total pressure from 500 psig to 150 psig enhanced ruthenium migration. During the next quarter, the use of high pressure in conjunction with high H{sub 2}:CO feed gas ratio will be evaluated to eliminate ruthenium migration. In case agglomeration of small ruthenium particles cannot be totally eliminated, products initially obtained during a test will be carefully examined to determine whether cut-off occurs prior to ruthenium agglomeration.
Date: December 31, 1985
Creator: Abrevaya, H.
Partner: UNT Libraries Government Documents Department

Establishing feasibility for providing passive cooling with solar updraft and evaporative downdraft chimneys. Progress report, March 1985--September 1985

Description: The solar updraft and a natural evaporative downdraft tower built onto an existing residence structure and a greenhouse were completed and operating. Performance data for the hottest days of June, July, and August, 1985 are included. (MHR)
Date: December 31, 1985
Creator: Cunningham, W. A. & Migon, G. V.
Partner: UNT Libraries Government Documents Department

Passive cooling with solar updraft and evaporative downdraft chimneys. Interim report, June 15, 1984--March 1, 1985

Description: Computer models have been developed to describe the operation of both solar updraft and evaporative downdraft chimneys. Design studies are being conducted at the present time to use the towers for cooling an experimental, well instrumented, structure to study passive cooling in residential buildings. (MHR)
Date: December 31, 1985
Creator: Mignon, G. V.; Cunningham, W. A. & Thompson, T. L.
Partner: UNT Libraries Government Documents Department

Micelle-derived catalysts for extended Schulz-Flory. Technical progress report, April 1, 1985--June 30, 1985

Description: A micelle procedure was established for preparing, in 30 g quantity, catalysts with ruthenium crystallites of specific size. A catalysts (4956-76) prepared by the micelle procedure and having 40--60 {Angstrom} ruthenium crystallites, according to the scanning transmission electron microscope (STEM) analysis, was tested in the Fischer-Tropsch fixed-bed pilot plant and showed significantly improved stability over catalysts for which the micelle technique has not been successfully applied. A hydrocarbon cut-off number was not observed, in the C{sub 1}-C{sub 180} carbon number range, with Catalyst 4956-76 containing 40--60 {Angstrom} ruthenium crystallites. Catalyst 4956-76 was reexamined with STEM after 248 hours of testing and did not display any noticeable change in the ruthenium crystallite size. Two new catalysts (4956-95 and 4956-97) were prepared with ruthenium crystallites of smaller size by the micelle procedure. Reverse micelle solutions with reverse micelles of smaller size were used for preparing these catalysts. Catalyst 4956497, with mostly 20--30 {Angstrom} ruthenium crystallites, is going to be evaluated to Determine the effect of ruthenium crystallite size on selectivity. X-ray diffraction (XRD) measurements were conducted on two ruthenium catalysts (1.1 and 1.7% Ru, by weight) prepared by a micelle technique, in order to confirm the narrow size distribution of ruthenium crystallites detected in the STEM examination. It was concluded that the XRD technique cannot be utilized to measure crystallite size distribution of (1--2 wt.% Ru) ruthenium on {gamma}-alumina because of the interference of the strong signal from the alumina support.
Date: December 31, 1985
Partner: UNT Libraries Government Documents Department

Micelle-derived catalysts for extended Schulz-Flory. Technical progress report, January 1, 1985--March 31, 1985

Description: The reduced C-73-1-101 iron catalyst was retested in Run 10, under the third set of reference conditions: 208{degree}C, 500 psig, 0.9 (molar) H{sub 2}/CO feed ratio, {approximately} 35% initial CO conversion. The analysis of the products collected during the entire 252-hour run, including the wax recovered from the catalyst, resulted in {alpha} = 0.78 for carbon numbers 1 to 15 and {alpha} = 0.88 for carbon numbers 16 to 45. The results of Run 10 are satisfactory and will be used in the future as reference performance. No further tests with the reference catalyst are going to be conducted until a method for testing experimental catalysts is established and new reference performance under different conditions is necessitated. Ruthenium particles, mostly in the 40 to 60 {Angstrom} size range, were prepared on the {gamma}-alumina by using a micelle technique. The narrow size distribution of ruthenium particles was not maintained and some very large particles up to 1000 {Angstrom} resulted when the catalyst preparation was upscaled from 2 g to {approximately} 30 g. The causes of the maldistribution that occurred during the scaling up of the catalyst preparation are under investigation. The catalyst which showed broad size distribution of ruthenium particles showed rapid deactivation during a test in Plant 700. Investigations are under way to improve the catalytic stability. Small angle X-ray scattering was used to characterize the reversed micelle solution used in the preparation of ruthenium catalysts. The volume averaged diameter of the water core for the reversed micelles is between 75 and 90 {Angstrom}.
Date: December 31, 1985
Partner: UNT Libraries Government Documents Department

Maximally concentrating optics for photovoltaic solar energy conversion. Technical progress report, [July 1, 1984--January 31, 1985]

Description: Use of a two-stage concentrator with a fresnel lens primary and a nonimaging dielectric totally internally reflecting secondary, has unique advantages for photovoltaic concentration. Some preliminary ray trace studies have shown that with planar lenses, an increase in angular acceptance for a given geometric concentration to about 2/3 of the maximum theoretical limit can be achieved. To demonstrate this, two preprototype concentrators, each having a geometric concentration of 248:1 for a 0.635cm (0.25 inch) diameter cell, have been designed, built, and tested. Measurements of the angular response show an acceptance of 8{degrees} (full angle) which is drastically better than the 1{degrees}--2{degrees} achievable without a secondary, and is in excellent agreement with the ray trace predictions. For these preprototypes, passive cooling was sufficient to prevent any thermal problems for both the cell and secondary. No problems associated with nouuniform cell illumination were found, as evidenced by the fill factor of 71%--73% measured under concentration. Initial measurements of the system electrical efficiency lie in the range 7.5%--9.9% for a variety of individual cells.
Date: March 7, 1985
Creator: O`Gallagher, J. J.
Partner: UNT Libraries Government Documents Department

Advanced Limiter Test-II Program to field a toroidal belt pump limiter in the TEXTOR tokamak. Progress report, FY 1985

Description: During the first quarter, the UCLA members of the ALT-II team worked primarily on the development of the experimental program plan and the diagnostics selection, and on the data acquisition system. These programs are discussed in this report.
Date: December 31, 1985
Creator: Conn, R. W. & Goebel, D. M.
Partner: UNT Libraries Government Documents Department

Chemical and Biological Characterization of Black Rock Harbor Dredged Material

Description: "This is one in a series of scientific reports documenting the findings of studies conducted under the Interagency Field Verifications of Testing and Predictive Methodologies for Dredged Material Disposal Alternatives (referred to at the Field Verification Program or FVP). This program is a comprehensive evaluation of environmental effects of dredged material disposal under conditions of upland and aquatic disposal and wetland creation."
Date: September 1985
Creator: Rogerson, Peter F.; Schimmel, Steven C. & Hoffman, Gerald
Partner: UNT Libraries Government Documents Department

Bonneville Project Act, Federal Columbia River Transmission System Act and Other Related Legislation.

Description: Legislative texts are provided for: Bonneville Project Act which authorizes the completion, maintenance, and operation of Bonneville project for navigation, and for other purposes; Federal Columbia River Transmission system Act which enables the Secretary of the Interior to provide for operation, maintenance, and continued construction of the Federal transmission system in the Pacific Northwest by use of the revenues of the Federal Columbia River Power System and the proceeds of revenue bonds, and for other purposes; public law 88--552 which guarantees electric consumers of the Pacific Northwest first call on electric energy generated at Federal hydroelectric plants in that regions and reciprocal priority, and for other purposes; and public law 78--329 which provides for the partial construction of the Hungary Horse Dam on the South Fork of the Flathead River in the state of Montana, and for other purposes
Date: January 1, 1985
Partner: UNT Libraries Government Documents Department

Performance evaluation of a ceramic cross-flow filter on a bench- scale coal gasifier. Second quarterly project report, January 1, 1985--March 31, 1985

Description: The Department of Energy is currently supporting a program that will aid in the development of cross flow filtration technology as applied to combined cycle power generation with coal gasification. The stated overall goal is to gain information on both the operational and economic feasibility of the implementation of cross flow filtration in various gasifier options. Westinghouse has prepared a comprehensive program that will lead directly to these program goals in an efficient manner. The proposed program is composed of three major technical tasks. Task 1 is directed at the design and actual test of a cross flow filter at a DOE bench scale gasifier. Task 2 is composed of several smaller theoretical and experimental efforts that are intended to firm up areas where engineering and design principles are lacking or considered inadequate. The third task is intended to integrate the results of the first two tasks in a conceptual design and cost analysis such that proper economic perspective for the filter concept can be gained. A brief summary of the approach taken in the technical tasks is presented in the following discussion. (VC)
Date: December 31, 1985
Creator: Ciliberti, D. F. & Lippert, T. E.
Partner: UNT Libraries Government Documents Department

EC-5 fifth international workshop on electron cyclotron emission and electron cyclotron heating

Description: This report contains papers on the following topics: electron cyclotron emission measurements; electron cyclotron emission theory; electron cyclotron heating; gyrotron development; and ECH systems and waveguide development. These paper have been indexed separately elsewhere. (LSP).
Date: December 31, 1985
Creator: Prater, R. & Lohr, J.
Partner: UNT Libraries Government Documents Department

Cs-137 concentrations in Steel Creek in 1984. Revision 1

Description: Measurement of Cs-137 concentrations in Steel Creek, 1984, have shown that L Reactor flow tests have not changed the Cs-137 concentrations and the initial phases of L Pond dam construction have only caused a slight increase in Cs-137 concentrations. The Cs-137 concentrations in 1984 were about 1 to 2 percent of the EPA drinking water concentration guide of 200 pCi/L. The concentration in Steel Creek is essentially the same as in 1980, before any major L Reactor refurbishing. The data obtained in 1984 indicate that initial Cs-137 remobilization estimates for Steel Creek are still valid.
Date: January 28, 1985
Creator: Hayes, D. W.
Partner: UNT Libraries Government Documents Department

Evaluation of the gas production economics of the gas hydrate cyclic thermal injection model

Description: The objective of the work performed under this directive is to assess whether gas hydrates could potentially be technically and economically recoverable. The technical potential and economics of recovering gas from a representative hydrate reservoir will be established using the cyclic thermal injection model, HYDMOD, appropriately modified for this effort, integrated with economics model for gas production on the North Slope of Alaska, and in the deep offshore Atlantic. The results from this effort are presented in this document. In Section 1, the engineering cost and financial analysis model used in performing the economic analysis of gas production from hydrates -- the Hydrates Gas Economics Model (HGEM) -- is described. Section 2 contains a users guide for HGEM. In Section 3, a preliminary economic assessment of the gas production economics of the gas hydrate cyclic thermal injection model is presented. Section 4 contains a summary critique of existing hydrate gas recovery models. Finally, Section 5 summarizes the model modification made to HYDMOD, the cyclic thermal injection model for hydrate gas recovery, in order to perform this analysis.
Date: May 1, 1985
Creator: Kuuskraa, V. A.; Hammersheimb, E. & Sawyer, W.
Partner: UNT Libraries Government Documents Department