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Verification of the Taylor (minimum energy) state in the S-1 Spheromak

Description: Experimental measurements of the equilibrium in the S-1 Spheromak by use of magnetic probes inside the plasma show that the final magnetic equilibrium is one which has relaxed close to the Taylor (minimum-energy) state, even though the plasma is far from that state during formation. The comparison is made by calculating the two-dimensional ..mu.. profile of the plasma from the probe data, where ..mu.. is defined as ..mu../sub 0/j/sub parallel//B. Measurements using a triple Langmuir probe proviā€¦ more
Date: September 1, 1985
Creator: Hart, G. W.; Janos, A.; Meyerhofer, D. D. & Yamada, M.
Partner: UNT Libraries Government Documents Department
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Natural convective behavior of EBR-II following a loss of flow from decay heat levels

Description: Eight loss-of-flow transients were conducted at initial decay heat levels of 0.75 to 1.6% of the rated EBR-II power. The data indicate that the natural convective flow was adequate to remove the decay heat without overheating the reactor core. Good agreement with NATDEMO and HOTCHAN predictions was obtained. (DLC)
Date: January 1, 1985
Creator: Chang, L.K.; Mohr, D.; Feldman, E.E.; Betten, P.R. & Planchon, H.P.
Partner: UNT Libraries Government Documents Department
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Treatment of radioactive mixed wastes in commercial low-level wastes

Description: Management options for three generic categories of radioactive mixed waste in commercial low-level wastes have been identified and evaluated. These wastes were characterized as part of a BNL study in which a large number of generators were surveyed for information on potentially hazardous low-level wastes. The general management targets adopted for mixed wastes are immobilization, destruction, and reclamation. It is possible that these targets may not be practical for some wastes, and for theseā€¦ more
Date: January 1, 1985
Creator: Kempf, C.R. & MacKenzie, D.R.
Partner: UNT Libraries Government Documents Department
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Annual Report on Resident Fish Activities, 1985 Fiscal Year, Columbia River Basin Fish and Wildlife Program, Action Item 41.8.

Description: This report addresses the status for resident fish projects currently implemented by the Bonneville Power Administration under the amended Columbia River Basin Fish and Wildlife Program. Projects that have been in place for a sufficient length of time are discussed in greater detail with a brief evaluation presented.
Date: September 1985
Creator: United States. Bonneville Power Administration. Division of Fish and Wildlife.
Partner: UNT Libraries Government Documents Department
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Financial and ratepayer impacts of nuclear power plant regulatory reform

Description: Three reports - ''The Future Market for Electric Generating Capacity,'' ''Quantitative Analysis of Nuclear Power Plant Licensing Reform,'' and ''Nuclear Rate Increase Study'' are recent studies performed by the Los Alamos National Laboratory that deal with nuclear power. This presents a short summary of these three studies. More detail is given in the reports.
Date: January 1, 1985
Creator: Turpin, A. G.
Partner: UNT Libraries Government Documents Department
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Overview of climatic effects of nuclear winter

Description: A general description of the climatic effects of a nuclear war are presented. This paper offers a short history of the subject, a discussion of relevant parameters and physical processes, and a description of plausible nuclear winter scenario. 9 refs. (ACR)
Date: January 1, 1985
Creator: Jones, E. M. & Malone, R. C.
Partner: UNT Libraries Government Documents Department
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Comparison of x-ray computed tomography, through-transmission ultrasound, and low-kV x-ray imaging for characterizing green-state ceramics

Description: Green-state MgAl/sub 2/O/sub 4/ compact disk specimens have been studied by x-ray computed tomography (CT), through-transmission pulsed ultrasound, and low-kV x-ray imaging to compare the abilities of these nondestructive evaluation (NDE) methods to detect flaws and density variations. X-ray computed tomographic images were obtained from a 125-kV (peak) imaging system with a 512 x 512 matrix and a pixel size of 100 ..mu..m. A 3- to 10- MHz focused-beam ultrasonic transducer was used, together wā€¦ more
Date: June 1, 1985
Creator: Roberts, R. A.; Ellingson, W. A. & Vannier, M. W.
Partner: UNT Libraries Government Documents Department
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Resistive instabilities in tokamaks

Description: Low-m tearing modes constitute the dominant instability problem in present-day tokamaks. In this lecture, the stability criteria for representative current profiles with q(0)-values slightly less than unit are reviewed; ''sawtooth'' reconnection to q(0)-values just at, or slightly exceeding, unity is generally destabilizing to the m = 2, n = 1 and m = 3, n = 2 modes, and severely limits the range of stable profile shapes. Feedback stabilization of m greater than or equal to 2 modes by rf heatinā€¦ more
Date: October 1, 1985
Creator: Rutherford, P.H.
Partner: UNT Libraries Government Documents Department
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Dispersion experiments using short-term releases of an atmospheric tracer

Description: The Mesoscale Atmospheric Transport Studies (MATS) experiments were undertaken to provide a data base for determining the accuracy of mesoscale atmospheric dispersion model predictions for short term releases. This paper describes the MATS experiments and compares observed dispersion parameters with theory. The movement of the sulfur hexaflouride cloud has been compared with wind sensors placed at several different elevations. The observed sigma-y values are also compared with theory and found ā€¦ more
Date: January 1, 1985
Creator: Weber, A H & Kurzeja, R J
Partner: UNT Libraries Government Documents Department
open access

Safeguards instrumentation: a computer-based catalog. Second edition

Description: This catalog contains entries on new developments and on items listed in BNL 51450, which have either been carried over unchanged or been updated. More than 70 entries were deleted because of either obsolescence, insufficient interest in terms of safeguards, or lack of documentable development activities in recent years. Some old listings as well as new material was consolidated into more generic entries. As in the earlier document, the emphasis is on devices and instruments that are either in ā€¦ more
Date: April 1, 1985
Creator: Auerbach, C.
Partner: UNT Libraries Government Documents Department
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Operational history of Fermilab's 1500 W refrigerator used for energy saver magnet production testing

Description: The 1500 W helium refrigerator system utilizes two oil-injected screw compressors staged to feed a liquid nitrogen pre-cooled cold box. Refrigeration is provided by two Sulzer TGL-22 magnetic/gas bearing turbines. The refrigerator feeds six magnet test stands via a 10,000 L dewar and subcooler equipped distribution box. The design of the controls has permitted the system to be routinely operated 24 hours/day, seven days/week with only five operators. It has operated approximately 90% of the 4-1ā€¦ more
Date: September 1, 1985
Creator: Bianchi, A. J.; Barger, R. K.; Johnson, F. B.; McGuire, K. J.; Pinyan, K. D.; Wilson, F. W. et al.
Partner: UNT Libraries Government Documents Department
open access

Prediction Approach to Multistage Sampling When Cluster Sizes Are Unknown

Description: A model for two-stage cluster sampling when sample cluster sizes are unknown is used to derive an optimal (model-based) estimator for the population total and to determine robust sampling strategies. In an empirical study using 1970 and 1980 census data for Los Angeles and surrounding counties, comparisons are made between the model based estimator and conventional estimators. The results favor the new estimator over those derived from randomization theory. In addition, the empirical study showā€¦ more
Date: January 1, 1985
Creator: Kelly, E. J. & Cumberland, W. G.
Partner: UNT Libraries Government Documents Department
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MHD stability of torsatrons using the average method

Description: The stability of torsatrons is studied using the average method, or stellarator expansion. Attention is focused upon the Advanced Toroidal Fusion Device (ATF), an l = 2, 12 field period, moderate aspect ratio configuration which, through a combination of shear and toroidally induced magnetic well, is stable to ideal modes. Using the vertical field (VF) coil system of ATF it is possible to enhance this stability by shaping the plasma to control the rotational transform. The VF coils are also useā€¦ more
Date: January 1, 1985
Creator: Holmes, J. A.; Carreras, B. A.; Charlton, L. A.; Garcia, L.; Hender, T. C.; Hicks, H. R. et al.
Partner: UNT Libraries Government Documents Department
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Potential capabilities at LAMPF to study nuclei far from stability

Description: Feasibility studies have shown that a He-jet activity transport line, with a target chamber placed in the LAMPF main beam line, will provide access to short-lived isotopes of a number of elements that cannot be extracted efficiently for study at any other type of on-line facility. The He-jet technique requires targets thin enough to allow a large fraction of the reaction products to recoil out of the target foils; hence, a very intense incident beam current, such as that uniquely available at Lā€¦ more
Date: January 1, 1985
Creator: Talbert, W. L. & Bunker, M. E.
Partner: UNT Libraries Government Documents Department
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Actinide production in /sup 136/Xe bombardments of /sup 249/Cf

Description: The production cross sections for the actinide products from /sup 136/Xe bombardments of /sup 249/Cf at energies 1.02, 1.09, and 1.16 times the Coulomb barrier were determined. Fractions of the individual actinide elements were chemically separated from recoil catcher foils. The production cross sections of the actinide products were determined by measuring the radiations emitted from the nuclides within the chemical fractions. The chemical separation techniques used in this work are described ā€¦ more
Date: August 1, 1985
Creator: Gregorich, K.E.
Partner: UNT Libraries Government Documents Department
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Radiation dose estimates for copper-64 citrate in man

Description: Tumor imaging agents suitable for use with positron emission tomographs are constantly sought. We have performed studies with animal-tumor-bearing models that have demonstrated the rapid uptake of copper-64. The radiation dose estimates for man indicate that the intravenous administration of 7.0 mCi would result in radiation doses to the kidney of 9.8 to 10.5 rads with other organs receiving substantially less radiation. 5 refs., 3 tabs.
Date: January 1, 1985
Creator: Crook, J.E.; Carlton, J.E.; Stabin, M. & Watson, E.
Partner: UNT Libraries Government Documents Department
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Comparison of predicted and measured fission product behavior in the Fort St. Vrain HTGR during the first three cycles of operation

Description: Fission product release from the reactor core has been predicted by the reference design methods and compared with reactor surveillance measurements and with the results of postirradiation examination (PIE) of spent FSV fuel elements. Overall, the predictive methods have been shown to be conservative: the predicted fission gas release at the end of Cycle 3 is about five times higher than observed. The dominant source of fission gas release is as-manufactured, heavy-metal contamination; in-serviā€¦ more
Date: October 1, 1985
Creator: Hanson, D. L.; Jovanovic, V. & Burnette, R. D.
Partner: UNT Libraries Government Documents Department
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Geothermal utilization plan, Marine Corps Air-Ground Combat Center, Twentynine Palms, California. Final report, March 1-September 1, 1985

Description: A preliminary engineering feasibility study of geothermal utilization was completed for the Marine Corps Air Ground Combat Center, Twentynine Palms, California. The study incorporated previous studies of the geology, geophysics, and environment performed for the Center. In addition, information about fuel consumption and current heating methodology was provided by the Center's personnel. This information was integrated with design assumptions based on the best estimates available for geothermalā€¦ more
Date: September 1, 1985
Creator: Ghusn, G. Jr. & Flynn, T.
Partner: UNT Libraries Government Documents Department
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Observation of high-power millimeter wave emission from a virtual cathode

Description: Intense bursts of mm wave power have been observed in microwave generation experiments with a relativistic electron beam (REB) virtual cathode oscillator. In this device an electron beam is injected into a drift space at a current above the space-charge-limit, and a potential develops downstream which is large enough to reflect electrons back to the source region. Two mechanisms can give rise to microwave oscillations in a virtual cathode device: electrons reflexing between the real and virtualā€¦ more
Date: January 1, 1985
Creator: Davis, H. A.; Bartsch, R. R.; Sherwood, E. G.; Stringfield, R. M. & Thode, L. E.
Partner: UNT Libraries Government Documents Department
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Advancement of flash hydrogasification. Quarterly technical progress report, July-September 1984

Description: The design of test hardware and process development unit (PDU) modifications had been completed previously. Task VII involves the fabrication of test hardware and the modification of an existing 1-ton/h hydroliquefaction PDU at Rockwell's facilities for use as a hydrogasifier test facility. Modifications to the PDU have been completed. The modified facility is designed to accommodate both 10- and 20-ft-long hydrogasifier reactors so that residence times will be in the range of 2 to 6 s when coaā€¦ more
Date: September 1, 1985
Creator: Falk, A. Y.
Partner: UNT Libraries Government Documents Department
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Testing site size requirements in chemisorption: experiment and theory

Description: ''Ensemble requirements'' in surface chemistry refer to the number and shape of contiguous empty sites necessary for chemisorption of a particular molecule. Ensemble effects can play a major role in directing the course of surface reactions, leading, for example, to dramatic changes in catalytic selectivity when the active metal component is diluted upon alloying with an inert metal. We will review here fundamental surface science studies that have attempted to probe this site size requirement ā€¦ more
Date: January 1, 1985
Creator: Campbell, C. T.; Paffett, M. T. & Voter, A. F.
Partner: UNT Libraries Government Documents Department
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Radioactive ion beam research at LLNL

Description: In this paper we discuss efforts underway at LLNL to develop the technology for the measurement of proton and alpha-particle reactions with unstable nuclei which are necessary for understanding the nucleosynthesis and energy generation in hot hydrogen-burning environments. 16 refs., 5 figs.
Date: August 1, 1985
Creator: Mathews, G. J.; Bauer, R. W.; Haight, R. C. & Sale, K. E.
Partner: UNT Libraries Government Documents Department
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