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Basic research needed for the development of geothermal energy

Description: Basic research needed to facilitate development of geothermal energy is identified. An attempt has been made to make the report representative of the ideas of productive workers in the field. The present state of knowledge of geothermal energy is presented and then specific recommendations for further research, with status and priorities, are listed. Discussion is limited to a small number of applicable concepts, namely: origin of geothermal flux; transport of geothermal energy; geothermal reservoirs; rock-water interactions, and geophysical and geochemical exploration.
Date: October 1, 1980
Creator: Aamodt, R. L. & Riecker, R. E.
Partner: UNT Libraries Government Documents Department
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Carbon dioxide problem: DOE program and a general assessment

Description: From the view of a potential national or international policy on CO/sub 2/, progress towards these goals is reported along with suggestions for additions to and implementation of the present work. After the introduction, conclusions and recommendations are presented. The third and fourth sections contain discussions of the present research programs on the carbon cycle and on climate modeling. The fifth section considers physical effects of CO/sub 2/-induced climate change that may be of social or economic importance. The last section considers some early warning signals for climate changes due to increased atmospheric CO/sub 2/.
Date: October 1, 1980
Creator: Abarbanel, H.; Chamberlain, J.; Foley, H.; MacDonald, G.; Nierenberg, W. & Ruderman, M.
Partner: UNT Libraries Government Documents Department
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Debris-bed cooling following an HCDA in a fast reactor. Annual progress report

Description: Natural convection within simulated core debris beds has been investigated experimentally and numerically. The objectives of this research have been: (1) to develop a three-dimensional transient model for analyzing single-phase cooling of debris beds; (2) to validate the model using out-of-pile simulant experiments which measure the detailed structure of the convection cells within the bed as well as integral heat transfer rates; and (3) to apply the model to typical core debris beds over a wide range of parameters in order to determine the relative importance of conduction and convection in sodium-cooled debris beds. The bed has been simulated using directly heated two-dimensional packed tube bundles of different particle diameters, bed loadings, porosities, heat generation rates, and overlaying fluid layer heights. Detailed velocity and temperature profiles within the bed and overlaying fluid have been measured using particle tracing techniques and Mach-Zehnder interferometry. Measurements of the downward and upward power fractions and Nusselt numbers over a wide range of experimental variables have been made. The data have been compared with predictions of the transient three-dimensional natural convection computer code COMMIX-1A. 14 figures.
Date: October 1, 1982
Creator: Abdel-Khalik, S.I.
Partner: UNT Libraries Government Documents Department
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FINESSE: study of the issues, experiments and facilities for fusion nuclear technology research and development. Interim report. Volume I

Description: The following chapters are included in this study: (1) fusion nuclear issues, (2) survey of experimental needs, (3) requirements of the experiments, (4) non-fusion facilities, (5) fusion facilities for nuclear experiments, and (6) fusion research and development scenarios. (MOW)
Date: October 1, 1984
Creator: Abdou, M.
Partner: UNT Libraries Government Documents Department
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FINESSE: study of the issues, experiments and facilities for fusion nuclear technology research and development. Interim report. Volume II

Description: The Nuclear Fusion Issues chapter contains a comprehensive list of engineering issues for fusion reactor nuclear components. The list explicitly defines the uncertainties associated with the engineering option of a fusion reactor and addresses the potential consequences resulting from each issue. The next chapter identifies the fusion nuclear technology testing needs up to the engineering demonstration stage. (MOW)
Date: October 1, 1984
Creator: Abdou, M.
Partner: UNT Libraries Government Documents Department
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FINESSE: study of the issues, experiments and facilities for fusion nuclear technology research and development. Interim report. Volume III

Description: This chapter deals with the analysis and engineering scaling of solid breeded blankets. The limits under which full component behavior can be achieved under changed test conditions are explored. The characterization of these test requirements for integrated testing contributes to the overall test matrix and test plan for the understanding and development of fusion nuclear technology. The second chapter covers the analysis and engineering scaling of liquid metal blankets. The testing goals for a complete blanket program are described. (MOW)
Date: October 1, 1984
Creator: Abdou, M.
Partner: UNT Libraries Government Documents Department
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Key Issues of FED/INTOR Impurity Control System

Description: A key part of the FED/INTOR activity over the past year has focused on examining the critical issues and developing credible physics and engineering solutions for the impurity control system. The primary emphasis of the work was on the edge-region physics, plasma-wall interaction, materials, engineering and magnetic considerations of the poloidal divertor and pump limiter.
Date: October 1, 1982
Creator: Abdou, M. A.
Partner: UNT Libraries Government Documents Department
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Tritium Breeding in Fusion Reactors

Description: Key technological problems that influence tritium breeding in fusion blankets are reviewed. The breeding potential of candidate materials is evaluated and compared to the tritium breeding requirements. The sensitivity of tritium breeding to design and nuclear data parameters is reviewed. A framework for an integrated approach to improve tritium breeding prediction is discussed with emphasis on nuclear data requirements.
Date: October 1, 1982
Creator: Abdou, M. A.
Partner: UNT Libraries Government Documents Department
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Engineering testing requirements in FED/INTOR

Description: The FED/INTOR critical issues activity has addressed three key testing requirements that have the largest impact on the design, operation and cost of FED/INTOR. These are: (1) the total testing time (fluence) during the device lifetime, (2) the minimum number of back-to-back cycles, and (3) the neutron wall load (power density in the first wall/blanket). The testing program activities were structured into three tasks in order to define the benefits, and in some cases, costs and risks of these testing requirements. The three tasks were carried out with wide participation of experts from a number of organizations in the United States. Similar effort was performed by Japan, the European Community and the Soviet Union.
Date: October 1, 1982
Creator: Abdou, M. A.; Nygren, R. E.; Morgan, G. D.; Trachsel, C. A.; Wire, G.; Oppermann, E. et al.
Partner: UNT Libraries Government Documents Department
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Geohydrology of Bandelier Tuff

Description: The Los Alamos National Laboratory has been disposing of radioactive wastes since 1944. Environmental studies and monitoring for radioactive contamination started concurrently. In this report, only two mechanisms and rates by which the radionuclides can enter the environment are studied in detail: subsurface transport of radionuclides by migrating water, and diffusion of tritiated water (HTO) in the vapor phase. The report also includes a section concerning the influence of moisture on shear strength and possible resulting subsidences occurring in the pit overburdens. Because subsurface transport of radionuclides is influenced by the hydraulic conductivity and this in turn is regulated by the moisture content of any given material, a study was also undertaken involving precipitation, the most important climatic element influencing the geohydrology of any given area. Further work is in progress to correlate HTO emanation to atmospheric and pedological properties, especially including thermal characteristics of the tuff.
Date: October 1, 1981
Creator: Abeele, M. V.; Wheeler, M. L. & Burton, B. W.
Partner: UNT Libraries Government Documents Department
open access

[RE: Information]

Description: A memo from Julie Abel, program associate for the Getty Center for Education in the Arts, to the participants for the Student Assessment Meeting, the Directors' meeting and the Barton Creek Conference. The memo is in regards to information needed for the directors to make travel arrangements, transportation, weather and clothing, meals functions and recreation after the meetings.
Date: October 24, 1989
Creator: Abel, Julie
Partner: UNT Libraries Special Collections
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[RE: Questions for November Assessment Meeting, Austin, Texas]

Description: A memo from Julie Abel, program associate of the Getty Center for Education in the Arts, to Jack Davis, Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts and Connie Newton. The memo is in regards to questions they sent in prior correspondence for the speakers at the Assessment Meeting in November. However, the questions arrived a week late and were not sent to the speakers. She requests that they bring the questions to the meeting.
Date: October 10, 1989
Creator: Abel, Julie
Partner: UNT Libraries Special Collections
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Pressure phase lines and enthalpies for the. cap alpha. -. beta. and. beta. -liquid transitions in beryllium

Description: The effect of hydrostatic pressure on the ..cap alpha..-..beta.. and ..beta..-liquid transition temperatures in Be was measured in a gas pressure system. Differential thermal analysis was used in the pressure range from 0.1 MPa to 0.7 GPa. For the ..cap alpha..-..beta.. transition, dT/dP = 43 +- 7 K/GPa; for the ..beta..-liquid transition, dT/dP = 35 +- 7 K/GPa. Although it is possible that large systematic errors may arise from experimental procedures, our results are seriously at odds with those of other investigators. Transition enthalpies for the ..cap alpha..-..beta.. and ..beta..-liquid transitions were 1.9 +- 0.2 and 2.2 +- 0.2 kcal/g.m., respectively, at a pressure of 0.1 MPa.
Date: October 31, 1984
Creator: Abey, A.
Partner: UNT Libraries Government Documents Department
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Study of heavy quark production with the Mark II at PEP

Description: The methods adopted by the Mark II collaboration to study heavy quark production at PEP are described. Two complementary techniques are used: D* tagging using the decay chain D*/sup +/. D/sup 0/..pi../sup +/, D/sup 0/ ..-->.. K/sup -/..pi../sup +/, and inclusive lepton tagging using the characteristic p/sub T/ distributions to distinguish contributions from b and c quarks. These techniques are used to derive information about heavy quark fragmentation and about the weak coupling of heavy quarks.
Date: October 1, 1983
Creator: Abrams, G.; Amidei, D.; Baden, A.; de la Vaissiere, C.; Gidal, G.; Gold, M. et al.
Partner: UNT Libraries Government Documents Department
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Review of Potential Host Rocks for Radioactive Waste Disposal in the Southeast United States, Southern Piedmont Subregion

Description: From abstract: "A literature study was conducted on the geology of the Southern Piedmont province of the states of Maryland, Virginia, North Carolina, South Carolina, and Georgia. The purpose was to identify geologic areas potentially suitable for containment of a repository for the long-term isolation of solidified radioactive waste."
Date: October 1980
Creator: Acres American Incorporated
Partner: UNT Libraries Government Documents Department
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Analyzing powers and proton spin transfer coefficients in the elastic scattering of 800 MeV polarized protons from an L-type polarized deuteron target at small momentum transfers

Description: Analyzing powers and spin transfer coefficients which describe the elastic scattering of polarized protons from a polarized deuteron target have been measured. The energy of the proton beam was 800 MeV and data were taken at laboratory scattering angles of 7, 11, 14, and 16.5 degrees. One analyzing power was also measured at 180 degrees. Three linearly independent orientations of the beam polarization were used and the target was polarized parallel and antiparallel to the direction of the beam momentum. The data were taken with the high resolution spectrometer at the Los Alamos Meson Physics Facility (experiment 685). The results are compared with multiple scattering predictions based on Dirac representations of the nucleon-nucleon scattering matrices. 27 refs., 28 figs., 4 tabs.
Date: October 1, 1986
Creator: Adams, D.L.
Partner: UNT Libraries Government Documents Department
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Uranium oxide and sodium oxide aerosol experiments: NSPP mixed-oxide tests 303-307, data record report. [LMFBR]

Description: This data record report summarizes five tests, involving mixtures of uranium oxide and sodium oxide aerosols, conducted in the Nuclear Safety Pilot Plant project at Oak Ridge National Laboratory. The goal of this project is to establish the validity (or level of conservatism) of the aerosol behavioral code, HAARM-3, and follow-on codes under development at Battelle Columbus Laboratories for the US Nuclear Regulatory Commission. Descriptions of the five tests with tables and graphs summarizing the results are included.
Date: October 1, 1982
Creator: Adams, R. E.; Kress, T. S. & Tobias, M. L.
Partner: UNT Libraries Government Documents Department
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Theory, design, and operation of liquid metal fast breeder reactors, including operational health physics

Description: A comprehensive evaluation was conducted of the radiation protection practices and programs at prototype LMFBRs with long operational experience. Installations evaluated were the Fast Flux Test Facility (FFTF), Richland, Washington; Experimental Breeder Reactor II (EBR-II), Idaho Falls, Idaho; Prototype Fast Reactor (PFR) Dounreay, Scotland; Phenix, Marcoule, France; and Kompakte Natriumgekuhlte Kernreak Toranlange (KNK II), Karlsruhe, Federal Republic of Germany. The evaluation included external and internal exposure control, respiratory protection procedures, radiation surveillance practices, radioactive waste management, and engineering controls for confining radiation contamination. The theory, design, and operating experience at LMFBRs is described. Aspects of LMFBR health physics different from the LWR experience in the United States are identified. Suggestions are made for modifications to the NRC Standard Review Plan based on the differences.
Date: October 1, 1985
Creator: Adams, S. R.
Partner: UNT Libraries Government Documents Department
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