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Calorimetric and optical beam diagnostics on the LBL 120-keV neutral beam test facility

Description: The 120-keV Neutral Beam Test Facility at LBL is fitted with several types of instrumentation to determine the properties of the 10- to 15-A hydrogen and deuterium beams produced in this facility. These include a neutral particle dump for measuring the temperature profile generated by the beam, and a fixed and a moveable ion dump to measure the temperature profiles generated by the various ion components after they have been swept out of the neutral beam by a bending magnet. These several dumps… more
Date: October 1, 1977
Creator: Burrell, C. F.; Cooper, W. S.; Steele, W. F. & Smith, R. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dosimetry measurements external to a 10 kiloliter liquid-air vessel containing a D-T neutron source. [14 MeV neutrons]

Description: To determine the radiation attenuation characteristics of liquid air (109 g/cm/sup 2/ thick) for 14 MeV neutrons from a central D-T source in a 10 kL vessel, radiation dose measurements were made using a large tissue-equivalent ion chamber external to the vessel. The shielding characteristics of steel spherical shells were also investigated. Experimental results were analyzed and compared with TARTNP Monte Carlo code calculations. Degradation of the ion chamber's response to high-energy neutron… more
Date: October 10, 1977
Creator: Tripler, D. J.; Goldberg, E. & Farley, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Design studies of a laser fusion power plant

Description: The conceptual design of a laser fusion power plant has been undertaken to exploit recent developments in target design. Advanced high-gain targets which have been developed make it possible to significantly relax the laser and optical system requirements. The power plant design features a reactor concept which utilizes a thick falling region of liquid lithium to protect the first-wall from the neutrons, x-rays, and charged particles that are produced in the thermonuclear microexplosion. The li… more
Date: October 7, 1977
Creator: Maniscalco, J. A.; Meier, W. R. & Monsler, M. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Polariton effects in naphthalene crystals

Description: The experimental verification of the two-step nature of energy dissipation of photon energy by a crystal is the subject of this dissertation. The ..cap alpha..(O,O) Davydov component of the lowest energy singlet transition in pure strain-free napthalene single crystals is shown to exhibit an increase in absorption with increasing temperature, due to an increase in polariton damping via polariton-phonon scattering processes. (GHT)
Date: October 1, 1977
Creator: Robinette, S. L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Fission-product energy release for times following thermal-neutron fission of /sup 235/U between 2 and 14000 seconds

Description: Fission-product decay energy-releases rates were measured for thermal-neutron fission of /sup 235/U. Samples of mass 1 to 10 ..mu..g were irradiated for 1 to 100 sec by use of the fast pneumatic-tube facility at the Oak Ridge Research Reactor. The resulting beta- and gamma-ray emissions were counted for times-after-fission between 2 and 14,000 seconds. The data were obtained for beta and gamma rays separately as spectral distributions, N(E/sub ..gamma../) vs E/sub ..gamma../ and N(E/sub beta/) … more
Date: October 1, 1977
Creator: Dickens, J. K.; Emery, J. F.; Love, T. A.; McConnell, J. W.; Northcutt, K. J.; Peelle, R. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Irradiation test OF-2: high-temperature irradiation behavior of LASL-made fuel rods and LASL-made coated particles. [ZrC coated particles]

Description: Three LASL-made, substoichiometric ZrC-coated particles with inert kernels, and two high-density molded graphite fuel rods that contained LASL-made, ZrC-coated fissile particles were irradiated in the Oak Ridge Research Reactor test OF-2. The severest test conditions were 8.36 x 10/sup 21/ nvt (E greater than 0.18 MeV) at 1350/sup 0/C. The graphite matrix showed no effect of the irradiation. There was no interaction between the matrix and any of the particle coats. The loose ZrC coated particle… more
Date: October 1, 1977
Creator: Wagner, P.; Reiswig, R. D.; Hollabaugh, C. M.; White, R. W.; O'Rourke, J. A.; Davidson, K. V. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summaries of FY 1977, research in high energy physics

Description: The U.S. Department of Energy, through the Office of Energy Research and the Division of High Energy and Nuclear Physics, provides approximately 90% of the total federal support for high energy physics research effort in the United States. The High Energy Physics Program primarily utilizes four major U.S. high energy accelerator facilities and over 50 universities under contract to do experimental and theoretical investigations on the properties, structure and transformation of matter and energ… more
Date: October 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiation Laboratory, University of Notre Dame. Quarterly report, July 1, 1977--September 30, 1977. [Short summaries of progress in 27 projects]

Description: Status of the following investigations is given: effect of molecular geometry on the electron affinity of H/sub 2/O; effect of non-spherically symmetric exchange potential in energy transfer and CIDEP; fragmentation patterns in the radiolysis of normal alkanes; properties of solvated electrons; temperature dependence of electron localization and impurity trapping in methanol and propanol; field-dependent electron mobility; aluminium cluster and organoaluminum systems; collision-induced atomic d… more
Date: October 13, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High energy hadron--hadron collisions. Annual progress report. [Summaries of research activities at the University of Georgia]

Description: Work on high energy hadron collisions in the geometrical picture, performed under the ERDA Contract No. E(38-1)-946, is summarized. Comparisons with new experimental results are made. Specific items discussed include the hadronic matter distribution for mesons and the comparison of theoretical prediction with a recent experiment, the possible existence of a second minimum in elastic pp scattering at very high energies, the analysis of the energy dependence of opaqueness in pp collisions, and th… more
Date: October 1, 1977
Creator: Chou, T.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Integral formulation for the two-dimensional spatial structure of drift and trapped-electron modes

Description: Previous calculations of the linear growth rate and two-dimensional spatial structure of trapped-electron modes are made more general and more accurate in several ways. First, an integral equation formulation of the eigenmode problem allows arbitrary values of k/sub r/rho/sub i/ (where k/sub r/ is the radial wavenumber and rho/sub i/ is the ion gyroradius) to be treated. Second, the ion response is generalized so that arbitrary ratios of the ion magnetic drift frequency to the mode frequency ar… more
Date: October 1, 1977
Creator: Rewoldt, G.; Tang, W.M. & Frieman, E.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear research with heavy ions. Annual progress report, January 1, 1977--December 31, 1977

Description: The experimental research program consists of several interrelated parts: (1) Reactions of Very Heavy Ions with Complex Nuclei; (2) Studies of Compound Nucleus Reactions Induced by Heavy Ions; and (3) Recoil Studies of Heavy Ion Reactions. Using solid-state detector telescopes and gas-ionization detector telescopes we have studied the emission of /sup 1/H, /sup 2/H, /sup 3/H, /sup 4/He and heavy fragments from the reactions of 720 MeV /sup 86/Kr with /sup 197/Au. Coincidence measurements betwee… more
Date: October 1, 1977
Creator: Kaplan, Morton
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluated fast neutron cross sections of uranium-238. [0. 045 to 20. 0 MeV]

Description: An evaluated fast neutron data file of /sup 238/U is presented in the ENDF/B format. The incident energy range extends from 0.045 to 20.0 MeV. The content consists of: (1) neutron total cross sections, (2) fission cross sections, neutron emission spectra and associated properties, (4) neutron radiative-capture cross sections, (5) (n;2n') and (n;3n') processes, and (6) photon-production cross sections and spectra. The methodology of the file derivation is outlined. File content is graphically il… more
Date: October 1, 1977
Creator: Poenitz, W.; Pennington, E.; Smith, A. & Howerton, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Adaptation of jet accumulation techniques for enhanced rock cutting

Description: The velocity of water jet flow can be increased when the jet impacts a target material or another water jet. A theory describing such augmentation in terms of velocity, mass, and energy change is considered. The phenomena is sensitive to jet structure and the jet velocity profile. Jet velocity profiles do not remain constant over great distances from the nozzle, and ultimately disrupt into droplets. Within the droplet the profile is more regular and the velocity constant. The theory is extended… more
Date: October 26, 1977
Creator: Mazurkiewicz, M.; Barker, C.R. & Summers, D.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Negative beam generation, transport, and acceleration

Description: A negative ion beam, generated by double charge exchange, has been accelerated to 60 keV. The components of the beamline are described, and an analysis of the flow and the effect of the beam-generated plasma is presented. It is shown that plasma flow along the beamline is limited by transverse ambipolar transport; acceleration of electrons can therefore be minimized by employing a drift space to control the flow of electrons from the cesium cell to the accelerator entrance.
Date: October 1, 1977
Creator: Poulsen, P.; Anderson, O. A.; Hooper, E. B. Jr.; Orzechowski, T. J. & Turnbull, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Inelastic Strong Interactions at High Energies. [Cross Sections, Field Theory]

Description: A method permitting the calculation of inclusive and semi-inclusive cross sections at high energies starting from an arbitrary field theory was worked out. The method relies on a functional integral representation of the generating functional of inclusive cross sections and on the use of semiclassical methods. The inclusive cross section is proportional to the absolute square of the Fourier transform of a special soliton solution of the classical field equations in zeroth order semi-classical a… more
Date: October 20, 1977
Creator: Suranyi, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Anomalous electron production in the lead-glass wall experiment at SPEAR. [3. 77 to 7. 4 GeV, branching ratio]

Description: The latest results of the lead-glass wall collaboration on anomalous electron production in electron--positron annihilations at center-of-mass energies from 3.77 to 7.4 GeV are given. Anomalous electron production was observed in two-prong events which is consistent with the heavy lepton hypothesis. The semileptonic branching ratio of the Dinto electrons is found. The branching ratios for heavy lepton decay were measured. Anomalous electron production was likewise observed in multiprong events.… more
Date: October 1, 1977
Creator: Madaras, R.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Results from the SPEAR magnetic detector with the lead-glass-addition

Description: Results from the SP-26 experiment at SPEAR are reported. The parameters of the psi (3772), recently discovered in this experiment, are discussed first. This resonance is just above threshold for D production; therefore the D masses could be measured with high precision. Measurements of D branching fractions into hadronic and semileptonic modes are reported; the hadronic branching fractions are reported here for the first time, and include a number of decay modes not observed before. At higher e… more
Date: October 1, 1977
Creator: Barbaro-Galtieri, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Studies of the hydroxyborohydride and triborohydride ions

Description: Results of the following studies are reported: chemical synthesis of hydroxytrihydroborate and peroxynitrite; the reduction of organic compounds with the hydroxyborohydride ion; and a kinetic study of the hydrolysis of the octahydrotriborate ions. (LK)
Date: October 1, 1977
Creator: Reed, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Analysis of the High-Temperature Particulate Collection Problem

Description: Particulate agglomeration and separation at high temperatures and pressures are examined, with particular emphasis on the unique features of the direct-cycle application of fluidized-bed combustion. The basic long-range mechanisms of aerosol separation are examined, and the effects of high temperature and high pressure on usable collection techniques are assessed. Primary emphasis is placed on those avenues that are not currently attracting widespread research. The high-temperature, particulate… more
Date: October 1977
Creator: Razgaitis, Richard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Charge density wave instabilities and incommensurate structural phase transformations

Description: Incommensurate structural phase transformations involve the appearance of modulated atomic displacements with spatial periodicity unrelated to the fundamental periodicity of the basic lattice. In the case of some quasi one- or two-dimensional metals such transformations are the result of Fermi-surface instabilities that also produce electronic charge density waves (CDW's) and soft phonon modes due to metallic electron screening singularities. Incommensurate soft mode instabilities have been fou… more
Date: October 1, 1977
Creator: Axe, J.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Neutron time behavior for deuterium neutral beam injection into a hydrogen plasma in ORMAK

Description: Neutrons were produced by D-D interactions when a 28-keV deuterium beam was coinjected into a hydrogen plasma in the Oak Ridge Tokamak (ORMAK). Fokker-Planck calculations, which correctly predict the time behavior of the neutron rate after beam turnon, show that the majority of the neutrons are from injected particles interacting with previously injected deuterons that have scattered to pitch angles of approximately 60 to 90/sup 0/ while slowing down.
Date: October 1, 1977
Creator: England, A. C.; Howe, H. C.; Mihalczo, J. T. & Fowler, R. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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