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Studies on transition metals and alloy Fischer-Tropsch catalysts, their electronic and bulk properties. (I: Fe/MnO; II: Fe/TiO/sub 2/; III: Fe/Mord. ). Final report, July 1, 1982-September 30, 1983

Description: The objectives were: (1) to characterize samples D1, 10% FeO/90% MnO, and D2, 48% FeO/52% MnO, under varying conditions of reduction (at 250/sup 0/C or 350/sup 0/C in H/sub 2/) and of syngas reaction 1:1 of CO:H/sub 2/ at 290/sup 0/C) and in some cases use CO only for reduction and to identify species by Moessbauer Spectroscopy and Magnetization (sigma/sub s) measurement; (2) similarly, to see if there is any metal (oxide)/support (Mordenite) interaction by the same techniques. The characteriza… more
Date: November 1, 1983
Creator: Mulay, L.N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Two-stage process for conversion of synthesis gas to high quality transportation fuels. Quarterly report, 8 June-30 September 1983

Description: The design of two large hot-flow models, to be used for slurry bubble-column hydrodynamic studies, is described. Scoping experiments were performed in smaller models to study the effects of feed-gas distributor type, column diameter, and liquid medium on gas holdup and bubble sizes. In addition, a literature review of bubble-column hydrodynamics is presented. Modifications to improve the operation and flexibility of the existing two stage pilot plant have been designed and construction initiate… more
Date: November 1, 1983
Creator: Kuo, J.C.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ultrafast gated intensifier design for laser fusion x-ray framing applications

Description: A major challenge for laser fusion is the study of the symmetry and the hydrodynamic stability of imploding fuel capsules. Streaked x-radiography, in one space and one time dimension, does not provide sufficient information. Two (spatial) dimensional frames of 10 to 100 ps duration are required with good image quality, minimum geometrical distortion (approximately 1%), dynamic range greater than 1000 and greater than 200 x 200 pixels. A gated transmission line imager (TLI) can meet these requir… more
Date: November 1, 1983
Creator: Price, R.H.; Wiedwald, J.D.; Kalibjian, R.; Thomas, S.W. & Cook, W.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Geothermal Progress Monitor. System status and operational experience

Description: The Geothermal Progress Monitor (GPM) system was designed and implemented by MITRE for DOE's Division of Geothermal Energy (now the Division of Geothermal and Hydropower Technologies). This report summarizes MITRE's operational experience with the system during fiscal year 1983 and provides a qualitative assessment of its data sources.
Date: November 1, 1983
Creator: Gerstein, R.E. & Medville, D.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mark III results from SPEAR

Description: First results from the MARK III detector at SPEAR are presented based on 2.7 million J/psi decays. The eta/sub c/ is observed in three modes, J/psi ..-->.. ..gamma..eta/sub c/, (eta/sub c/ ..-->.. rho anti rho, eta..pi../sup +/..pi../sup -/, and phi phi). Using the phi phi mode, the eta/sub c/ spin-parity is determined to be 0/sup -/. The known radiative J/psi decays J/psi ..-->.. ..gamma..f(f ..-->.. ..pi../sup +/..pi../sup -/), ..gamma..eta'(eta' ..-->.. ..gamma..rho/sup 0/, eta..pi../sup +/.… more
Date: November 1, 1983
Creator: Toki, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Relationship of regional water quality to aquifer thermal energy storage

Description: Ground-water quality and associated geologic characteristics may affect the feasibility of aquifer thermal energy storage (ATES) system development in any hydrologic region. This study sought to determine the relationship between ground-water quality parameters and the regional potential for ATES system development. Information was collected from available literature to identify chemical and physical mechanisms that could adversely affect an ATES system. Appropriate beneficiation techniques to … more
Date: November 1, 1983
Creator: Allen, R.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Volume H/sup -/ ion production experiments at LBL

Description: H/sup -/ ions formed by volume processes have been extracted from a multicusp ion source. It is shown that a permanent magnet filter together with a small positive bias voltage on the plasma grid can produce a very significant reduction in electron drain as well as a sizable increase in H/sup -/ ions available for extraction. A further reduction in electron current is achieved by installing a pair of small magnets at the extraction aperture. An H/sup -/ ion current density of 38 mA/cm/sup 2/ wa… more
Date: November 1, 1983
Creator: Leung, K. N. & Ehlers, K. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Recent Results From DELCO

Description: DELCO is a magnetic spectrometer with Cerenkoc, Time-of-Flight (TOF) and shower counters for particle identification. It is located in IR8 of the PEP storage ring. Data have been obtained at a center of mass energy, ..sqrt..s, of 29 GeV. We report on: (1) the fraction of P, K, ..pi.. in hadronic events; (2) the observation of direct electron signals; and (3) the measurement of D* fragmentation function and its total cross-section. 8 references.
Date: November 1, 1983
Creator: Atwood, W. B.; Baillon, P. H.; Barish, B. C.; Bonneaud, G. R.; DeStaebler, H.; Donaldson, G. J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Status of greater than or equal to 1 ampere H/sup -/ ion source development at the Lawrence Berkeley Laboratory

Description: This paper summarizes the effort to improve the operation of the approx. 1 A surface-production H/sup -/ ion source developed by K.W. Ehlers and K.N. Leung. The plasma chamber consists of a large magnetic bucket of oval cross section. A concave cylindrical converter surface is suspended in the plasma chamber to direct any surface-produced negative ions through the exit aperture. The ion source has been mated to a tetrode accelerator for the proof-of-principle tests. Most of the problems discove… more
Date: November 1, 1983
Creator: Lietzke, A. F.; Ehlers, K. W. & Leung, K. N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Technical specifications - enhancing the safety impact

Description: This report documents the work of an interoffice, interdisciplinary, NRC Task Group established in August 1983 to identify the scope and nature of problems with surveillance testing in current Technical Specifications and to develop alternative approaches that will provide better assurance that surveillance testing does not adversely impact safety. The Task Group concluded that some of the Technical Specifications have the potential for adversely affecting safety and some do not appear to be co… more
Date: November 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ion-induced surface modification of alloys

Description: In addition to the accumulation of the implanted species, a considerable number of processes can affect the composition of an alloy in the surface region during ion bombardment. Collisions of energetic ions with atoms of the alloy induce local rearrangement of atoms by displacements, replacement sequences and by spontaneous migration and recombination of defects within cascades. Point defects form clusters, voids, dislocation loops and networks. Preferential sputtering of elements changes the c… more
Date: November 1, 1983
Creator: Wiedersich, H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Interpretation of interference data from the Klamath Falls, Oregon geothermal resource

Description: Data from a seven week pressure interference test in the Klamath Falls, Oregon geothermal resource have been analyzed. The data indicate that productive wells are fed by a highly permeable fracture network and that the less permeable matrix blocks contribute significantly to the reservoir storage capacity. Detailed analysis of data from two wells is presented. Data from both of the wells yield a reservoir permeability-thickness (kh) of approximately 1.3x10/sup 6/ md-ft and a storativity (phi c/… more
Date: November 1, 1983
Creator: Benson, S.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Brief summary of staffing levels at Fermilab during initial construction years

Description: This paper very briefly summarizes the work of the various groups that were involved from the beginning through the end of the initial construction phase of the Fermilab project (defined here to be July 1, 1972) and the final construction or completion phase which is here defined as December 31, 1973. The numbers in this report have been gathered by examining the personnel records of Fermilab with the research being done by Chuck Marofske, the Head of Laboratory Services and his staff and by as… more
Date: November 1, 1983
Creator: Livdahl, P.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Auger decay mechanism in photon-stimulated desorption of ions from surfaces

Description: Photon-stimulated desorption (PSD) of positive ions was studied with synchrotron radiation using an angle-integrating time-of-flight mass spectrometer. Ion yields as functions of photon energy near core levels were measured from condensed gases, alkali fluorides, and other alkali and alkaline earth halides. These results are compared to bulk photoabsorption measurements with emphasis on understanding fundamental desorption mechanisms. The applicability of the Auger decay mechanism, in which ion… more
Date: November 1, 1983
Creator: Parks, C.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some nitrogen-14 NMR studies in solids

Description: The first order quadrupolar perturbation of the /sup 14/N NMR spectrum yields information regarding the static and dynamic properties of the surrounding electronic environment. Signal to noise problems caused by long /sup 14/N longitudinal relaxation times (T/sub 1/) and small equilibrium polarizations are reduced by rotating frame cross polarization (CP) experiments between /sup 14/N and /sup 1/H. Using quadrupolar echo and CP techniques, the /sup 14/N quadrupolar coupling constants (e/sup 2/q… more
Date: November 1, 1983
Creator: Pratum, T. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TFTR initial operations

Description: The Tokamak Fusion Test Reactor (TFTR) has operated since December 1982 with ohmically heated plasmas. Routine operation with feedback control of plasma current, position, and density has been obtained for plasmas with I/sub p/ approx. = 800 kA, a = 68 cm, R = 250 cm, and B/sub t/ = 27 kG. A maximum plasma current of 1 MA was achieved with q approx. = 2.5. Energy confinement times of approx. 150 msec were measured for hydrogen and deuterium plasmas with anti n/sub e/ approx. = 2 x 10/sup 13/ cm… more
Date: November 1, 1983
Creator: Young, K.M.; Bell, M.; Blanchard, W.R.; Bretz, N.; Cecchi, J.; Coonrod, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Initial characterization of a BGO-photodiode detector for high resolution positron emission tomography

Description: Spatial resolution in positron emission tomography is currently limited by the resolution of the detectors. This work presents the initial characterization of a detector design using small bismuth germanate (BGO) crystals individually coupled to silicon photodiodes (SPDs) for crystal identification, and coupled in groups to phototubes (PMTs) for coincidence timing. A 3 mm x 3 mm x 3 mm BGO crystal coupled only to an SPD can achieve a 511 keV photopeak resolution of 8.7% FWHM at -150/sup 0/C, us… more
Date: November 1, 1983
Creator: Derenzo, S.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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MHD generator component development. Quarterly report, July 1983-September 1983

Description: The overall objectives of this program are two-fold: (1) To contribute, by appropriate systematic experimental and analytical investigations, to the engineering data base necessary for the design and construction of MHD generators at CDIF-scale (50 MW/sub th/) and baseload scale (2000 MW/sub th/). (2) To design and fabricate specific hardware items to be tested at the CDIF site in Butte, Montana. The program consists of a series of related tasks: (1) MHD channel design and performance; (2) MHD … more
Date: November 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Possibilities for x-ray holography using synchrotron radiation

Description: Since the theoretical and experimental demonstrations of the effectiveness of soft x-rays in imaging biological material there has been considerable study given to the prospects for further development of the presently existing techniques. This has been motivated to a large extent by advances in source technology, particularly the use of undulators on electron storage rings and recent improvements in short wavelength lasers. The present author has carried out theoretical evaluations of the poss… more
Date: November 1, 1983
Creator: Howells, M.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Considerations involved in the design of negative-ion-based neutral beam systems

Description: We consider the requirements and constraints for negative-ion-based neutral beam injection systems, and show how these are reflected in design considerations. We will attempt to develop a set of guidelines for users and developers to use to see how well (in a qualitative sense, at least) a particular neutral beam system fits a particular proposed need.
Date: November 1, 1983
Creator: Cooper, W. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Heavy ion fusion year-end report, April 1, 1983-September 30, 1983

Description: Some highlights of the program during this reporting period are as follows: (1) First results with the completed apparatus of the Single Beam Transport Experiment (SBTE) have shown the stable propagation of a space-charge-dominated cesium-ion beam through 41 periods of an AG focussing lattice. The space-charge effects were large enough to depress the betatron phase advance per cell from sigma/sub 0/ = 60/sup 0/ to sigma = 12/sup 0/. (2) Understanding of the reflection stabilization of longitudi… more
Date: November 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Devitrification behavior of SRL defense waste glass

Description: Simulated SRL waste was prepared with compositions varying in iron and aluminum content. Two batches with similar composition were produced with different amounts of reducing agent added. Samples were isothermally heat treated and used to derive time-temperature-transformation diagrams. Supplementary samples were cooled in a manner programmed to simulate the cooling curves of production canisters. Less than 10% total devitrification occurs during normal processing. However, when waste glass 165… more
Date: November 1, 1983
Creator: Bickford, Dennis F. & Jantzen, Carol M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Influence of cover defects on the attenuation of radon with earthen covers

Description: Experimental and theoretical evaluations of radon flux through laboratory-scale defective soil columns are presented together with a survey of literature on the formation and prevention of defects in soil covers. This report focuses on air-filled, centimeter-scale defects that are most probable in earthen covers for attenuating radon emission from uranium-mill tailings. Examples include shirnkage and erosion cracks, erosion piping, animal burrows and air channels formed by the biodegradation of… more
Date: November 1, 1983
Creator: Kalkwarf, D. R. & Mayer, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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