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Actinides, the narrowwest bands

Description: A table of elements is shown that demonstrates the crossover from superconductivity to magnetism as well as regions of mixed valence. In particular, the actinides must eventually show 4f-electron like mixed valence, after the 5f-electrons become localized. There also seems to be an adiabatic continuation between heavy fermion and mixed valence behavior.
Date: January 1, 1984
Creator: Smith, J.L. & Riseborough, P.S.
Item Type: Refine your search to only Article
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Activated barrier for protection of special nuclear materials in vital areas

Description: The Argonne National Laboratory and Sandia National Laboratory have recently installed an activated barrier, the Access Denial System (ADS) for the upgrade of safeguards of special nuclear materials. The technology of this system was developed in the late 70's by Sandia National Laboratory-Albuquerque. The installation was the first for the Department of Energy. Subsequently, two additional installations have been completed. The Access Denial System, combined with physical restraints, provide t… more
Date: July 15, 1984
Creator: Timm, R. E.; Miranda, J. E.; Reigle, D. L. & Valente, A. D.
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

Active sites in char gasification. Quarterly technical progress report, 1 January 1984-31 March 1984. [Polymers of phenol-formaldehyde family; chars produced from model compounds]

Description: This project is concerned with the study of the nature and behavior of active sites in gasification of chars produced from synthesized model compounds, primarily of the phenol-formaldehyde family of resins. The current technical progress report presents further developments on resin synthesis and characterization and the design of a pyro-gasifier reactor for transient kinetic studies of the chars produced from the model compounds. 7 references, 12 figures, 2 tables.
Date: May 1, 1984
Creator: Calo, J.M.; Suubers, E.M.; Wojtowicz, M. & Lilly, W.
Item Type: Refine your search to only Report
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Activity ratios of thorium daughters in vivo

Description: A computerized method of least squares has been used to analyze the /sup 228/Ac and /sup 212/Pb-/sup 212/Bi and daughter ..gamma..-ray spectra obtained in vivo from 133 former workers at a thorium refinery. In addition, the exhalation rate of /sup 220/Rn was determined for each subject and expressed as pCi of emanating /sup 224/Ra. This value was added to the /sup 212/Pb value determined from the ..gamma..-ray measurements to obtain the total /sup 224/Ra present, and the ratio of /sup 224/Ra to… more
Date: January 1, 1984
Creator: Toohey, R.E.; Rundo, J.; Sha, J.Y.; Essling, M.A.; Pedersen, J.C. & Slane, J.M.
Item Type: Refine your search to only Article
open access

Actual versus design performance of solar systems in the National Solar Data Network

Description: This report relates field measured performance to the designer predicted performance. The field measured data was collected by the National Solar Data Network (NSDN) over a period of six years. Data from 25 solar systems was selected from a data pool of some 170 solar systems. The scope of the project extends beyond merely presenting comparisons of data. There is an attempt to provide answers which will move the solar industry forward. As a result of some industry and research workshops, severa… more
Date: September 1, 1984
Creator: Logee, T. L. & Kendall, P. W.
Item Type: Refine your search to only Report
open access

Adequacy of radioiodine control and monitoring at nuclear fuels reprocessing plants

Description: The present backlog of irradiated reactor fuel leads to projections that no fuel out of the reactor less than 10 years need be reprocessed prior to the year 2000. The only radioiodine present in such aged fuel is /sup 129/I (half-life 1.6 x 10/sup 7/ y). The /sup 131/I initially present in the fuel decays to insignificance in the first few hundred days post-reactor. The /sup 129/I content of irradiated fuel is about 1 Ci per gigawatt-year of electricity generated (Ci/GW(e)-y). The US EPA has sp… more
Date: June 1984
Creator: Scheele, R. D.; Burger, L. L. & Soldat, J. K.
Item Type: Refine your search to only Report
open access

Adjoint sensitivity analysis of a thermal hydraulic system undergoing phase change due to boiling transition. [BWR]

Description: Sensitivity analysis of practical problems can be performed systematically and very efficiently by using adjoint functions. In areas of interest to nuclear reactors, this efficiency has been amply demonstrated on several widely used codes for neutronics and/or thermal hydraulic calculations. Applications of the adjoint method of sensitivity analysis to models involving phase transitions, where non-differentiability occurs, do not seem to have been reported to date. The purpose of this paper is … more
Date: June 3, 1984
Creator: Cacuci, D. G.; Wacholder, E.; Kaizerman, S. & Tomerian, N.
Item Type: Refine your search to only Article
open access

Adjoint transport calculations for sensitivity analysis of the Hiroshima air-over-ground environment

Description: A major effort within the US Dose Reassessment Program is aimed at recalculating the transport of initial nuclear radiation in an air-over-ground environment. This paper is the first report of results from adjoint calculations in the Hiroshima air-over-ground environment. The calculations use a Hiroshima/Nagasaki multi-element ground, ENDF/B-V nuclear data, one-dimensional ANISN flux weighting for neutron and gamma cross sections, a source obtained by two-dimensional hydrodynamic and three-dime… more
Date: January 1, 1984
Creator: Broadhead, B. L.; Cacuci, D. G. & Pace, J. V. III
Item Type: Refine your search to only Article
open access

Advanced coal liquefaction research. Quarterly technical progress report, July 1, 1983-September 30, 1983

Description: Work this quarter focused on staged liquefaction. The effect of residence time on conversion in single pass experiments was found to be quite different for the subbituminous Belle Ayr Mine and bituminous Illinois No. 6 coals studied. With bituminous coal, conversion to soluble material is quite high and the limit of conversion is approached in only a few minutes. With a subbituminous coal, however, conversion is much lower and the limit of conversion is approached much more slowly. Short contac… more
Date: April 1, 1984
Item Type: Refine your search to only Report
open access

Advanced crystalline laser materials

Description: To guide the laser materials research and development effort, we have analyzed the scaling laws for zig-zag and flow-cooled disk amplifiers, defined materials figures of merit, and developed laser performance applications maps. Within this technical framework, we have embarked on an effort to synthesize, characterize, select, and develop new materials useful for a variety of robust laser applications.
Date: January 1, 1984
Creator: Krupke, W. F.
Item Type: Refine your search to only Article
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Advanced direct coal liquefaction. Quarterly technical progress report No. 1, September-November 1983

Description: Wyoming subbituminous coal was liquefied using three different two-stage process configurations in bench-scale tests. These process configurations differed in the type of fractionated deashing resid being recycled to the individual stages. The objective of these runs was to determine whether, by recycle of specific resid streams to the thermal stage, the second stage catalyst life could be improved without detrimentally affecting distillate yield or hydrogen consumption. The results indicate th… more
Date: February 7, 1984
Creator: Paranjape, A.S.
Item Type: Refine your search to only Report
open access

Advanced direct coal liquefaction. Quarterly technical progress report No. 2, December 1983-February 1984

Description: Five Bench-Scale coal liquefaction runs were completed with Wyoming subbituminous coal in a two-stage process scheme. In this process scheme, LDAR, the lighter fraction of ash-free resid, was fed to the catalytic stage prior to its recycle to the thermal stage, whereas DAR, the heavy fraction of the deashed resid, was directly recycled to the thermal stage without any intermediate processing step. The results indicate that increasing coal space rate in the dissolver resulted in lower coal conve… more
Date: April 30, 1984
Creator: Paranjape, A.S.
Item Type: Refine your search to only Report
open access

Advanced Fuel Cell Development Progress Report: April-June 1983

Description: Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts on development of molten carbonate fuel cells directed toward seeking alternative cathode materials to NiO. Based on an investigation of the thermodynamically stable phases formed under cathode conditions with a number of transition metal oxides, synthesis of prospective alternative cathode materials and doping of these materials to promote electronic conductiv… more
Date: February 1984
Creator: Ackerman, J. P. & Pierce, Robert Dean
Item Type: Refine your search to only Report
open access

Advanced Fuel Cell Development Progress Report: April-June 1984

Description: Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). These efforts have been directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. Particular emphasis has been placed on studying the relationship between synthesis conditions and the resistivity of doped and undoped LiFeO2 and Li2 MnO3 and on achieving a better understanding of the crystalline defect structures of the thermodynamically stable phases.
Date: November 1984
Creator: Pierce, Robert Dean; Claar, T. D.; Dees, D. W.; Fousek, R. J.; Kaun, T. D.; Kucera, C. H. et al.
Item Type: Refine your search to only Report
open access

The Advanced Light Source: Technical Design

Description: The Advanced Light Source (ALS) is a synchrotron radiation source consisting of a 50-MeV linear accelerator, a 1.3-GeV 'booster' synchrotron, a 1.3-GeV electron storage ring, and a number of photon beam lines, as shown in Figure 1. As an introduction to a detailed description of the Advanced Light Source, this section provides brief discussions on the characteristics of synchrotron radiation and on the theory of storage rings. Appendix A contents: Introduction to Synchrotron-Radiation Sources; … more
Date: May 1, 1984
Item Type: Refine your search to only Report
open access

Advanced remotely maintainable force-reflecting servomanipulator concept

Description: A remotely maintainable force-reflecting servomanipulator concept is being developed at the Oak Ridge National Laboratory as part of the Consolidated Fuel Reprocessing Program. This new manipulator addresses requirements of advanced nuclear fuel reprocessing with emphasis on force reflection, remote maintainability, reliability, radiation tolerance, and corrosion resistance. The advanced servomanipulator is uniquely subdivided into remotely replaceable modules which will permit in situ manipula… more
Date: January 1, 1984
Creator: Kuban, D. P. & Martin, H. L.
Item Type: Refine your search to only Article
open access

Advanced remotely maintainable force-reflecting servomanipulator concept

Description: A remotely maintainable force-reflecting servomanipulator concept is being developed at the Oak Ridge National Laboratory as part of the Consolidated Fuel Reprocessing Program. This new manipulator addresses requirements of advanced nuclear fuel reprocessing with emphasis on force reflection, remote maintainability, reliability, radiation tolerance, and corrosion resistance. The advanced servomanipulator is uniquely subdivided into remotely replaceable modules which will permit in situ manipula… more
Date: January 1, 1984
Creator: Kuban, D. P. & Martin, H. L.
Item Type: Refine your search to only Article
open access

Advanced research for the characterization of hydrogen donor solvents in two-stage liquefaction. Quarterly report, April 1, 1984-June 30, 1984

Description: Solvent-only reactions at SCT conditions in hydrogen were explored for each of the four blended solvents, ranging from 6.1 to 8.6 wt. % hydrogen content (nominally 6.1, 7.7, 7.4, 8.6). Generally, no loss of solvent to gas was measured, but small amounts of retrograde reactions (oil to preasphaltenes, asphaltenes, insolubles) were observed at both low and high severity. Insolubles were produced in solvent A (6.1% H) and consumed in solvent D (8.6% H). Ten hydrotreating and hydrocracking catalyst… more
Date: January 1, 1984
Creator: Hamshar, J. A. & Potts, J. D.
Item Type: Refine your search to only Report
open access

Advanced teleoperation in nuclear applications

Description: A new generation of integrated remote maintenance systems is being developed to meet the needs of future nuclear fuel reprocessing at the Oak Ridge National Laboratory. Development activities cover all aspects of an advanced teleoperated maintenance system with particular emphasis on a new force-reflecting servomanipulator concept. The new manipulator, called the advanced servomanipulator, is microprocessor controlled and is designed to achieve force-reflection performance near that of mechanic… more
Date: January 1, 1984
Creator: Hamel, W. R.; Feldman, M. J. & Martin, H. L.
Item Type: Refine your search to only Article
open access

Advanced teleoperation in nuclear applications: consolidated fuel reprocessing program

Description: A new generation of integrated remote maintenance systems is being developed to meet the needs of future nuclear fuel reprocessing at the Oak Ridge National Laboratory. Development activities cover all aspects of an advanced teleoperated maintenance system with particular emphasis on a new force-reflecting servomanipulator concept. The new manipulator, called the advanced servomanipulator, is microprocessor controlled and is designed to achieve force-reflection performance near that of mechanic… more
Date: January 1, 1984
Creator: Hamel, W. R.; Feldman, M. J. & Martin, H. L.
Item Type: Refine your search to only Article
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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