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Absolute dipole gamma-ray strength functions for /sup 176/Lu. Supplement

Description: We have derived absolute dipole strength-function information for /sup 176/Lu from an average resonance capture study of /sup 175/Lu with 2-keV neutrons and from neutron capture cross-section measurements with neutrons from 30 keV to about 1 MeV. We found that we needed to increase our previous estimate of the relative M1/E1 strengths near 5 MeV by a factor of 3 and to revise downward the absolute magnitude of our E1 strength function. We accomplished the latter, while still maintaining continu… more
Date: October 16, 1984
Creator: Gardner, D. G.; Gardner, M. A. & Hoff, R. W.
Item Type: Refine your search to only Article
open access

Activation/waste management

Description: The selection of materials and the design of the blankets for fusion reactors have significant effects upon the radioactivity generated by neutron activation in the materials. This section considers some aspects of materials selection with respect to waste management. The activation of the materials is key to remote handling requirements for waste, to processing and disposal methods for waste, and to accident severity in waste management operations. In order to realize the desirable evnironment… more
Date: October 1, 1984
Creator: Maninger, C.
Item Type: Refine your search to only Report
open access

Advanced Thermionic Technology Program: summary report. Volume 1. Final report

Description: This report summarizes the progress made by the Advanced Thermionic Technology Program during the past several years. This program, sponsored by the US Department of Energy, has had as its goal adapting thermionic devices to generate electricity in a terrestrial (i.e., combustion) environment. The technology has previously been developed for astronautical applications. The report is organized in four volumes, each focused as much as possible on the needs of a particular audience. Volume 1 conta… more
Date: October 1, 1984
Item Type: Refine your search to only Report
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Advanced Thermionic Technology Program: summary report. Volume 2. Final report

Description: This report summarizes the progress made by the Advanced Thermionic Technology Program during the past several years. This Program, sponsored by the US Department of Energy, has had as its goal adapting thermionic devices to generate electricity in a terrestrial (i.e., combustion) environment. The technology has previously been developed for astronautical applications. Volume 2 (Part C) concentrates on the progress made in developing and fabricating the ''current generation'' of chemical vapor … more
Date: October 1, 1984
Item Type: Refine your search to only Report
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Advanced Thermionic Technology Program: summary report. Volume 3. Final report

Description: This report summarizes the progress made by the Advanced Thermionic Technology Program during the past several years. This Program, sponsored by the US Department of Energy, has had as its goal adapting thermionic devices to generate electricity in a terrestrial (i.e., combustion) environment. Volume 3 (Part D) contains the results of systems studies of primary interest to those involved in identifying and evaluating applications for thermionics. As a general rule of thumb, cogeneration technol… more
Date: October 1, 1984
Item Type: Refine your search to only Report
open access

Advanced Thermionic Technology Program: summary report. Volume 4. Final report

Description: This report summarizes the progress made by the Advanced Thermionic Technology Program during the past several years. This Program, sponsored by the US Department of Energy, has had as its goal adapting thermionic devices to generate electricity in a terrestrial (i.e., combustion) environment. Volume 4 (Part E) is a highly technical discussion of the attempts made by the Program to push the state-of-the-art beyond the current generation of converters and is directed toward potential researchers… more
Date: October 1, 1984
Item Type: Refine your search to only Report
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Aging of Cast Duplex Stainless Steels in LWR Systems

Description: A program is being conducted to investigate the significance of in-service embrittlement of cast duplex stainless steels under light-water reactor operating conditions. The existing data are evaluated to determine the expected embrittlement of cast components during the operating lifetime of reactors and to define the objectives and scope of the investigation. This presentation describes the status of the program. Data for the metallurgical characterization of the various cast stainless steels … more
Date: October 1, 1984
Creator: Chopra, O. K. & Chung, H .M.
Item Type: Refine your search to only Article
open access

Alcohol Fuels Program technical review, Spring 1984

Description: The alcohol fuels program consists of in-house and subcontracted research for the conversion of lignocellulosic biomass into fuel alcohols via thermoconversion and bioconversion technologies. In the thermoconversion area, the SERI gasifier has been operated on a one-ton per day scale and produces a clean, medium-Btu gas that can be used to manufacture methanol with a relatively small gas-water shift reaction requirement. Recent research has produced catalysts that make methanol and a mixture of… more
Date: October 1, 1984
Item Type: Refine your search to only Report
open access

Alternative anodic reactions in water splitting. Final report

Description: An anodic depolarization path to hydrogen production through water electrolysis has been examined, using lignite, grass and household wastes. Iron was removed from lignite by extensive washing. The degree of dissolution of lignite in 5 M H/sub 2/So/sub 4/ at 100/sup 0/C is ca. 0.1 wt %. Washed lignite dissolves less than unwashed material. Cyclic voltammograms showed peaks arising from dissolved organics. Increase of temperature produced more peaks. In alkaline solution, peaks disappeared. Oxid… more
Date: October 1, 1984
Creator: Murphy, Oliver J. & Bockris, John O'M.
Item Type: Refine your search to only Report
open access

Analysis of advanced solar hybrid desiccant cooling systems for buildings

Description: This report describes an assessment of the energy savings possible from developing hybrid desiccant/vapor-compression air conditioning systems. Recent advances in dehumidifier design for solar desiccant cooling systems have resulted in a dehumidifier with a low pressure drop and high efficiency in heat and mass transfer. A recent study on hybrid desiccant/vapor compression systems showed a 30%-80% savings in resource energy when compared with the best conventional systems with vapor compression… more
Date: October 1, 1984
Creator: Schlepp, D. & Schultz, K.
Item Type: Refine your search to only Report
open access

Analysis of central worths and other integral data from the Los Alamos benchmark assemblies

Description: We have compared theoretical calculations, based on ENDF/B-V and recent revisions, with integral data measured on the Los Alamos unmoderated critical assemblies Godiva, Jezebel, Flattop-25, and Flattop-Pu. The experimental data included in this analysis are multiplication factors k/sub eff/ and (in most cases) both fission rates and central-worth ratios for /sup 235/U, /sup 238/U, /sup 237/Np, and /sup 239/Pu. Based on this comparison, we conclude that there is a need for a new /sup 235/U evalu… more
Date: October 1, 1984
Creator: Muir, D.W.
Item Type: Refine your search to only Report
open access

Antiproton Yield Diagnostics for the Tevatron I Debuncher

Description: During start-up of the CERN AA, many hours of machine experiments went into the study and optimization of antiproton yields. Those involved in the commissioning programme experienced the difficulty of tuning a new machine to accept a low-intensity full-aperture beam. The antiproton yield could only be obtained by integrating a slow Schottky scan of the beam on the injection orbit, normalized with respect to primary beam intensity by a charge transformer just in front of the production target. A… more
Date: October 17, 1984
Creator: Johnson, C. D. & Hojvat, C.
Item Type: Refine your search to only Report
open access

Approaches to ultrafast neutron detectors

Description: We discuss two approaches to obtain detectors of very high temporal resolution. In the first approach, uranium-coated cathode is used in a streak tube configuration. Secondary electrons accompanying the fission fragments from a neutron-uranium reaction are accelerated, focussed and energy analyzed through a pinhole and streaked. Calculations show that 20 ps time-resolution can be obtained. In the second approach, a uranium-coated cathode is integrated into a transmission line. State-of-the-art … more
Date: October 5, 1984
Creator: Wang, C. L.; Kalibjian, R.; Singh, M. S.; Wiedwald, J. D.; Campbell, D. E.; Campbell, E. M. et al.
Item Type: Refine your search to only Article
open access

Area Safety Program for the tokamak fusion test reactor (TFTR)

Description: Overall the Area Safety Program has proved to be a very successful operation. There is no doubt that a safety program organized through line management is the best way to involve all personnel. Naturally, when the program was first started, there was some criticism and a certain resistance on the part of a few individuals to fully participate. However, once the program was underway and it could be seen that it was working to everyone's advantage, this reluctance disappeared and a spirit of full… more
Date: October 1, 1984
Creator: Rappe, G.M.
Item Type: Refine your search to only Report
open access

Assessment of Geothermal Energy Potential Sulphurdale Geothermal Field, Sulphurdale, Utah

Description: The Sulphurdale Geothermal Field is located in Beaver County Utah, within the boundaries of the Cove Fort--Sulphurdale Known Geothermal Resource Area (KGRA). During the past year, three wells drilled in Section 7, T-26-S, R-6-W, have produced dry steam from a fractured volcanic formation located at a depth of about 1100 feet. Two of these three wells are currently prepared to supply steam to a power plant, and one well has been plugged and abandoned. ThermaSource, Inc. was retained by Mother Ea… more
Date: October 1, 1984
Item Type: Refine your search to only Report
open access

ATLAS positive-ion injector proposal

Description: The ATLAS facility will provide beams of heavy-ions through approximately mass 130. Energies provided will range from over 20 MeV/A for lighter ions down to approximately 5 MeV/A for mass 130. In discussions with our user group concerning future program needs, two major areas of focus emerged. The first was a desire to increase the beam intensities available by approximately a factor of ten beyond what is possible from our present negative-ion source and tandem injector for all ion species. The… more
Date: October 1, 1984
Creator: Pardo, R.C.
Item Type: Refine your search to only Article
open access

Avoiding Leakage Flow-Induced Vibration by a Tube-in-Tube Slip Joint

Description: Parameters and operating conditions (a stability map) were determined for which a specific slip-joint design did not cause self-excited lateral vibration of the two cantilevered, telescoping tubes forming the joint. The joint design featured a localized annular constriction. Flowrate, modal damping, tube engagement length, and eccentric positioning were among the parameters tested. Interestingly, all self-excited vibrations could be avoided by following a simple design rule: place constrictions… more
Date: October 1984
Creator: Mulcahy, T. M.
Item Type: Refine your search to only Report
open access

Avoiding leakage flow-induced vibration by a tube-in-tube slip joint

Description: Parameters and operating conditions (a stability map) were determined for which a specific slip-joint design did not cause self-excited lateral vibration of the two cantilevered, telescoping tubes forming the joint. The joint design featured a localized annular constriction. Flowrate, modal damping, tube engagement length, and eccentric positioning were among the parameters tested. Interestingly, all self-excited vibrations could be avoided by following a simple design rule: place constrictions… more
Date: October 1, 1984
Creator: Mulcahy, T. M.
Item Type: Refine your search to only Report
open access

Berkeley High-Resolution Ball

Description: Criteria for a high-resolution ..gamma..-ray system are discussed. Desirable properties are high resolution, good response function, and moderate solid angle so as to achieve not only double- but triple-coincidences with good statistics. The Berkeley High-Resolution Ball involved the first use of bismuth germanate (BGO) for anti-Compton shield for Ge detectors. The resulting compact shield permitted rather close packing of 21 detectors around a target. In addition, a small central BGO ball give… more
Date: October 1, 1984
Creator: Diamond, R. M.
Item Type: Refine your search to only Article
open access

Bibliography of atomic and molecular processes, 1983

Description: This annotated bibliography includes papers on atomic and molecular processes published during 1983. Sources include scientific journals, conference proceedings, and books. Each entry is designated by one or more of the 114 categories of atomic and molecular processes used by the Controlled Fusion Atomic Data Center, Oak Ridge National Laboratory to classify data. Also indicated is whether the work was experimental or theoretical, what energy range was covered, what reactants were investigated,… more
Date: October 1, 1984
Creator: Barnett, C. F.; Crandall, D. H.; Gilbody, H. B.; Gregory, D. C.; Kirkpatrick, M. I.; McDaniel, E. W. et al.
Item Type: Refine your search to only Report
open access

Broadband Excitation in Nuclear Magnetic Resonance

Description: Theoretical methods for designing sequences of radio frequency (rf) radiation pulses for broadband excitation of spin systems in nuclear magnetic resonance (NMR) are described. The sequences excite spins uniformly over large ranges of resonant frequencies arising from static magnetic field inhomogeneity, chemical shift differences, or spin couplings, or over large ranges of rf field amplitudes. Specific sequences for creating a population inversion or transverse magnetization are derived and de… more
Date: October 1, 1984
Creator: Tycko, R.
Item Type: Refine your search to only Thesis or Dissertation
open access

BWR pipe crack and weld clad overlay studies

Description: Leaks and cracks in the heat-affected zones of weldments in austenitic stainless steel piping in boiling water reactors (BWRs) due to intergranular stress corrosion cracking (IGSCC) have been observed since the mid-1960s. Since that time, cracking has continued to occur, and indication have been found in all parts of the recirculation system, including the largest diameter lines. Proposed solutions for the problem include procedures that produce a more favorable residual stress state on the inn… more
Date: October 1, 1984
Creator: Shack, W.J.; Kassner, T.F.; Maiya, P.S.; Park, J.Y. & Ruther, W.E.
Item Type: Refine your search to only Article
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