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A 0. 4 mm Interferometer System Using Dielectric Waveguide

Description: A 0.4 mm submillimeter-wave, phase-modulated polarimeter/interferometer is used for simultaneous time-dependent measurement of line-averaged electron density and poloidal field-induced Faraday rotation along chords of the plasma column in ISX-B tokamak. Heterodyna detection and hollow dielectric waveguide are utilized to achieve the high sensitivity required for the multichord equipment.
Date: January 1, 1982
Creator: Hutchinson, D. P.; Ma, C. H.; Staats, P. A. & Vander Sluis, K. L.
Partner: UNT Libraries Government Documents Department
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0/sup -/ to 0/sup +/ beta decay in A = 16

Description: Techniques and results of the measurement of the beta-decay rate of the first excited state of /sup 16/N to the ground state of /sup 16/O are reported. Energy levels involved in the decay are shown, and the /sup 16/N 0/sup -/ beta decay branching ration is given. (WHK)
Date: January 1, 1982
Creator: Gagliardi, C.; Garvey, G. T.; Wrobel, J. R. & Freedman, S. J.
Partner: UNT Libraries Government Documents Department
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1-D hybrid code for FRM start-up

Description: A one-D hybrid has been developed to study the start-up of the FRM via neutral-beam injection. The code uses a multi-group numerical model originally developed by J. Willenberg to describe fusion product dynamics in a solenoidal plasma. Earlier we described such a model for use in determining self-consistent ion currents and magnetic fields in FRM start-up. However, consideration of electron dynamics during start-up indicate that the electron current will oppose the injected ion current and may… more
Date: January 1, 1982
Creator: Stark, R. A. & Miley, G. H.
Partner: UNT Libraries Government Documents Department
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2. 6/sup 0/K refrigeration system for CBA magnet testing

Description: The superconducting magnets for the accelerator's rings will be cooled by a forced flow supercritical helium system from a central refrigeration plant. The design temperature for these magnets varies from 2.6 to 3.8/sup 0/K depending on a magnet's location in the ring. This paper describes the forced flow cooling system for testing a prototype magnet near 2.6/sup 0/K; this lowest temperature being of special interest to evaluate magnet quench protection. The test forced flow cooling system uses… more
Date: January 1, 1982
Creator: Bamberger, Joseph A.
Partner: UNT Libraries Government Documents Department
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2-D Eulerian hydrodynamics with fluid interfaces, self-gravity and rotation

Description: The purpose of this paper is to describe in detail the numerical approach we have developed over the past five years for solving 2-dimensional gas-dynamical problems in astrophysics involving inviscid compressible flow, self-gravitation, rotation, and fluid instabilities of the Rayleigh-Taylor and Kelvin-Helmholtz types. The computer code to be described has been applied most recently to modeling jets in radio galaxies (Norman et al. 1981, 1982) and is an outgrowth of a code developed for study… more
Date: January 1, 1982
Creator: Norman, M.L. & Winkler, K.H.A.
Partner: UNT Libraries Government Documents Department
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S = -2 dibaryons and hypernuclei

Description: Future prospects for the exploration of doubly strange hypernuclear systems are evaluated. Such systems may be produced via the double strangeness exchange reactions (K/sup -/,K/sup +/) or (K/sup -/,K/sup 0/) on nuclear targets. Theoretical estimates are given of the formation cross sections for Xi/sup -/ hypernuclear states via the one-step K/sup -/p ..-->.. K/sup +/Xi/sup -/ process, or discrete states of the ..lambda lambda.. hypernucleus in the two step reaction K/sup -/p ..-->.. ..pi../sup… more
Date: January 1, 1982
Creator: Dover, C. B.
Partner: UNT Libraries Government Documents Department
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3-D solution of flow in an infinite square array of circular tubes by using boundary-fitted coordinate system

Description: Heat transfer and fluid flow over circular tubes have wide applications in the design of heat exchangers and nuclear reactors. However, it is often difficult to accurately calculate the detailed velocity and temperature distributions of the flow because of the complex geometry involved in the analysis, and a lack of an appropriate coordinate system for the analysis. Boundary conditions on the surfaces of the tubes are often interpolated. This interpolation process introduces inaccuracy. To over… more
Date: January 1, 1982
Creator: Chen, B. C. J.; Chien, T. H.; Sha, W. T. & Kim, J. H.
Partner: UNT Libraries Government Documents Department
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3 mm Anisotropy Measurement: On the Quadrupole Component in theCosmic Background Radiation

Description: We have mapped the large-scale anisotropy in the cosmic background radiation at 3 mm wavelength using a liquid-helium-cooled balloon-borne radiometer sensitive enough to detect the dipole in one gondola rotation (1 minute). Statistical errors on the dipole and quadrupole components are below 0.1 mK with less than 0.1 m K galactic contribution. We find a dipole consistent with previous measurements but disagree with recent quadrupole reports. The measurement is also useful in searching for spect… more
Date: November 1, 1982
Creator: Lubin, Philip M.; Epstein, Gerald L. & Smoot, George F.
Partner: UNT Libraries Government Documents Department
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A = 4 0/sup +/ - 1/sup +/ binding-energy difference

Description: The A = 4 ..lambda..-hypernuclei provide a rich source of information about the s-wave properties of the fundamental hyperon-nucleon (YN) force as well as offer a unique opportunity to investigate the complications that arise in calculations of the properties of bound systems in which one baryon (here the ..lambda..) with a given isospin couples strongly to another (the ..sigma..) with a different isospin. The ..lambda../sup 4/H - ..lambda../sup 4/He isodoublet ground-state energies are not con… more
Date: January 1, 1982
Creator: Gibson, B. F. & Lehman, D. R.
Partner: UNT Libraries Government Documents Department
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4. pi. physics with the plastic ball

Description: 4 ..pi.. data taken with the Plastic Ball show that cluster production in relativistic nuclear collisions depends on both the size of the participant volume and the finite size of the cluster. The measurement of the degree of thermalization and the search for collective flow will permit the study of the applicability of macroscopic concepts such as temperature and density.
Date: October 1, 1982
Creator: Gutbrod, H. H.; Loehner, H.; Poskanzer, A. M.; Renner, T.; Riedesel, H.; Ritter, H. G. et al.
Partner: UNT Libraries Government Documents Department
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1982 engineering conference on reliability for the electrical power industry

Description: Emergency onsite ac power systems at nuclear power plants are a major concern in plant risk assessments because of the relatively large frequency of loss of offsite power and the dependence of most other safety systems on ac power. Detailed reviews of onsite ac power system designs and reviews of experience with diesel generators at US nuclear power plants form the basis of system reliability analyses that show significant improvements in reliability can be obtained at moderate cost for some pl… more
Date: January 1, 1982
Creator: Campbell, D. J.; Arendt, J. S.; Battle, R. E. & Baranowsky, P. W.
Partner: UNT Libraries Government Documents Department
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1982 Sneap Report on the Oak Ridge 25-MV Tandem Accelerator

Description: Operation of the accelerator during the period from October 1981 to October 1982 is described. (GHT)
Date: September 29, 1982
Creator: Ziegler, N. F.; Richardson, E. G.; Mann, J. E.; Juras, R. C.; Jones, C. M.; Galbraith, D. M. et al.
Partner: UNT Libraries Government Documents Department
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1D thermonuclear model for x-ray transients

Description: The thermonuclear evolution of a 1.41 M solar mass neutron star, with a radius of 14.3 km, accreting various mixtures of hydrogen, helium, and heavy elements at rates of 10/sup -11/ to 10/sup -10/ M solar mass/yr is examined, in conjunction with S.E. Woosley and T.A. Weaver, using a one-dimensional numerical model. We have ignored any effects due to general relativity or magnetic fields. Two cases shall be discussed. In both models, the accretion rate is such that the hydrogen shell burns to he… more
Date: January 1, 1982
Creator: Wallace, R. K.
Partner: UNT Libraries Government Documents Department
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34th Geothermal Coordinating Group Meeting

Description: Chairman William Ogle said the overall purpose of the meeting was to consider how the US government, and the Division of Geothermal Energy in particular, might apply its geothermal effort more effectively. Given the present situation, how does Uncle Sam make the best possible effort? On this theme, there are 4 main subquestions: (1) what government support is needed? (2) how can we improve cooperation between industry, the national laboratories, universities, and industries, and does it matter?… more
Date: November 9, 1982
Partner: UNT Libraries Government Documents Department
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Ablative fast pyrolysis of biomass in the entrained-flow cyclonic reactor at SERI

Description: Progress with the entrained flow cyclonic reactor at SERI is detailed. Feedstocks successfully used include wood flour and fairly large sawdust. Preliminary results show that relatively complete vaporization of the biomass is realized and that the yields of tar or gas can be varied over quite a range with trends following first order kinetic concepts.
Date: June 1, 1982
Creator: Diebold, J. & Scahill, J.
Partner: UNT Libraries Government Documents Department
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Absolutely calibrated soft-x-ray streak camera for laser-fusion applications

Description: The intensity output of a soft-x-ray streak camera was calibrated (SXRSC) in order to make absolute flux measurements of x rays emitted from laser-produced plasmas. The SXRSC developed at LLNL is used to time-resolve x-ray pulses to better than 20 ps. The SXRSC uses a Au photocathode on a thin carbon substrate which is sensitive to x rays from 100 eV to greater than 10 keV. Calibrations are done in the dynamic mode using a small laser-produced x-ray source. The SXRSC is calibrated by comparing … more
Date: January 1, 1982
Creator: Kauffman, R.L.; Medecki, H. & Stradling, G.
Partner: UNT Libraries Government Documents Department
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Abstracts of the symposium on unsaturated flow and transport modeling

Description: Abstract titles are: Recent developments in modeling variably saturated flow and transport; Unsaturated flow modeling as applied to field problems; Coupled heat and moisture transport in unsaturated soils; Influence of climatic parameters on movement of radionuclides in a multilayered saturated-unsaturated media; Modeling water and solute transport in soil containing roots; Simulation of consolidation in partially saturated soil materials; modeling of water and solute transport in unsaturated h… more
Date: March 1, 1982
Partner: UNT Libraries Government Documents Department
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Acceleration of heavy ions to very high energies

Description: The current interest of physicists in the collisions of heavy ions closes an interesting circle in the technology of accelerator building. The first cyclic accelerator, built by R. Wideroe, was a linear accelerator designed to accelerate potassium ions. Subsequent to Wideroe's achievement, much of the art of accelerator construction has been devoted to creating energetic beams of electrons and protons. Now we find ourselves returning to the heavy ions, and Wideroe's linear accelerator structure… more
Date: January 1, 1982
Creator: Barton, M. Q.
Partner: UNT Libraries Government Documents Department
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Acceleration of magnetized plasma rings

Description: One scheme is considered, acceleration of a ring between coaxial electrodes by a B/sub theta/ field as in a coaxial rail-gun. If the electrodes are conical, a ring accelerated towards the apex of the cone undergoes self-similar compression (focussing) during acceleration. Because the allowable acceleration force F/sub a/ = kappa U/sub m//R (kappa < 1) increases as R/sup -2/, the accelerating distance for conical electrodes is considerably shortened over that required for coaxial electrodes. In … more
Date: November 16, 1982
Creator: Hartman, D.; Eddleman, J. & Hammer, J. H.
Partner: UNT Libraries Government Documents Department
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Accident analysis and DOE criteria

Description: In analyzing the radiological consequences of major accidents at DOE facilities one finds that many facilities fall so far below the limits of DOE Order 6430 that compliance is easily demonstrated by simple analysis. For those cases where the amount of radioactive material and the dispersive energy available are enough for accident consequences to approach the limits, the models and assumptions used become critical. In some cases the models themselves are the difference between meeting the crit… more
Date: January 1, 1982
Creator: Graf, Joseph M. & Elder, John C.
Partner: UNT Libraries Government Documents Department
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Acid digestion of combustible radioactive wastes

Description: The following conclusions resulted from operation of Radioactive Acid Digestion Test Unit (RADTU) for processing transuranic waste: (1) the acid digestion process can be safely and efficiently operated for radioactive waste treatment.; (2) in transuranic waste treatment, there was no detectable radionuclide carryover into the exhaust off-gas. The plutonium decontamination factor (DF) between the digester and the second off-gas tower was &gt;1.5 x 10/sup 6/ and the overall DF from the digester t… more
Date: March 1, 1982
Creator: Allen, C. R.; Lerch, R. E.; Crippen, M. D. & Cowan, R. G.
Partner: UNT Libraries Government Documents Department
open access

Acoustic disturbance at ionospheric heights caused by the MILL RACE explosion

Description: The principal objective of the Los Alamos National Laboratory in the MILL RACE experiment was to measure the over-head ionospheric response due to the MILL RACE explosion. Such a measurement enables one to test computer models designed to quantitatively predict ionospheric disturbances caused by known sources. The emphasis of the models has been directed at calculating effects on rf propagation associated with the predicted ionospheric disturbances. Consequently vertical incidence phase soundin… more
Date: January 1, 1982
Creator: Rickel, D.G. & Simons, D.J.
Partner: UNT Libraries Government Documents Department
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