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Elastic p-/sup 4/He scattering near 1 GeV

Description: New 1.029 GeV p-/sup 4/He data from an Argonne-UCLA-Minnesota collaboration are in excellent agreement with existing multiple diffraction theory predictions. The theoretical calculation includes spin and isospin dependence of the ..delta.. intermediate state process that fills the first diffraction minimum. The recently normalized Saclay data and the older Brookhaven data disagree with our calculation and the new data.
Date: February 1, 1977
Creator: Wallace, S. J. & Alexander, Y.
Partner: UNT Libraries Government Documents Department
open access

Directional growth of pearlite in iron--carbon eutectoid alloys. [Rate]

Description: Pearlite was transformed directionally by passing a zone of austenite through high purity Fe--C alloy bars of eutectoid composition. Using a small embedded thermocouple, the temperature gradient at both the austenitizing edge and the pearlite transformation edge of the austenitic zone was recorded. A sharp change in gradient occurred due to the change in thermal conductivity between the phases at each interface. The point of change in gradient enabled the temperature of both interfaces to be de… more
Date: February 1, 1977
Creator: Pearson, D. D.
Partner: UNT Libraries Government Documents Department
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Methods for the isolation and identification of polycyclic aromatic hydrocarbons found in complex mixtures and the determination of their possible toxicity by means of a host mediated bioassay technique. Progress report, July 1, 1976--February 1, 1977. [Cultured mouse leumemia cell bioassay system]

Description: Techniques were developed to produce excellent high performance glass capillary columns for gas chromatographic analyses of a wide range of complex mixtures of organic compounds, including those containing a wide array of polycyclic aromatic hydrocarbons (PAH) derived from a coal liquefaction process. Work was begun to assess the potential mutogenicity and/or carcinogenicity of the various isolated PAH fractions utilizing a unique host mediated bioassay system. Preliminary results indicate that… more
Date: February 1, 1977
Creator: Lipsky, S. R.; Alexander, G.; McMurray, W. & Capizzi, R.
Partner: UNT Libraries Government Documents Department
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Ultraprecise parabolic interpolator for numerically controlled machine tools. [Digital differential analyzer circuit]

Description: The mathematical basis for an ultraprecise digital differential analyzer circuit for use as a parabolic interpolator on numerically controlled machines has been established, and scaling and other error-reduction techniques have been developed. An exact computer model is included, along with typical results showing tracking to within an accuracy of one part per million.
Date: February 1, 1977
Creator: Davenport, C. M.
Partner: UNT Libraries Government Documents Department
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Some alternatives to the mixed oxide fuel cycle

Description: While on initial examination each of the six fuel cycle concepts (tandem cycle, extended burnup, fuel rejuvenation, coprocessing, partial reprocessing, and thorium) described in the report may have some potential for improving safeguards, none of the six appears to have any other major or compelling advantages over the mixed oxide (MOX) fuel cycle. Compared to the MOX cycle, all but coprocessing appear to have major disadvantages, including severe cost penalties. Three of the concepts-tandem, e… more
Date: February 1, 1977
Creator: Deonigi, D. E.; Eschbach, E. A.; Goldsmith, S.; Pankaskie, P. J.; Rohrmann, C. A. & Widrig, R. D.
Partner: UNT Libraries Government Documents Department
open access

Influence of strain rate and temperature on the yield and fracture toughness behavior of selected steels for an LMFBR spent fuel shipping cask, a literature assessment

Description: The literature has been reviewed to determine the possible influences of strain rate and temperature on the yield and fracture toughness behavior of selected steels suggested for use in an LMFBR Spent Fuel Shipping Cask. Based on this information, recommendations have been made for further work which is intended to alleviate potential problems prior to their having a major impact on the shipping cask program.
Date: February 1, 1976
Creator: Rack, H. J.
Partner: UNT Libraries Government Documents Department
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Collisional effects on trapped electron instabilities

Description: The effects of collisions on dissipative trapped electron instabilities are evaluated by distinguishing between the perpendicular and parallel electron velocity components when calculating trapped and untrapped electron contributions. The growth rate is obtained for all regimes of collisionality and reduces to previous results in appropriate limits. We show that the dominant effect of finite collisionality is to determine the number of trapped and untrapped electrons and that collisional broade… more
Date: February 1, 1977
Creator: Tsang, K. T.; Callen, J. D. & Catto, P. J.
Partner: UNT Libraries Government Documents Department
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Irradiation performance of HTGR fertile fuel in HFIR target capsules HT-12 through HT-15. Part I. Experiment description and fission product behavior

Description: Sixteen types of Biso-coated designs, on ThO/sub 2/ kernels, were irradiated in High Flux Isotope Reactor target capsules HT-12 through HT-15. The report addresses the description of the experiment and extensive postirradiation analyses and experiments to determine fertile-particle burnup, fuel coating failures, and fission product behavior. Several low-temperature isotropic (LTI) pyrocarbon coatings, which ''survived'' according to visual inspection, were shown to have developed permeability d… more
Date: February 1, 1977
Creator: Kania, M. J.; Lindemer, T. B.; Morgan, M. T. & Robbins, J. M.
Partner: UNT Libraries Government Documents Department
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NDA technology for uranium resource evaluation. [ONETRAN]

Description: The following progress report describes the work performed during the first quarter on the contract for NDA Technology for Uranium Resource Evaluation. The initial phases of the work focused on gamma-ray calculations and computer code modifications in support of borehole logging measurements and surface gamma-ray surveys. The existing gamma-ray transport computer codes at Los Alamos Scientific Laboratory are being modified to give the energy group resolution desired for the uranium calculations… more
Date: February 1, 1977
Creator: Menlove, H. O. (comp.)
Partner: UNT Libraries Government Documents Department
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Photo-induced cataphoretic isotope separation. Progress report, June 15, 1976--June 14, 1977. [Monoisotope light sources]

Description: Initial results of studies of the feasibility of radiation-induced cataphoretic segregation of isotopes are summarized. More detailed feasibility calculations show that significant isotope separation efficiencies can be obtained for discharges at low pressure. This may make it desirable to use a buffer gas in the discharge in order to manipulate the electron energy distribution. Requirements for the properties of the buffer gas have been established. The experimental system for studying laser-i… more
Date: February 1, 1977
Creator: Carruthers, J. A.; Chanin, L. M. & Oskam, H. J.
Partner: UNT Libraries Government Documents Department
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Microinstabilities in Complex Magnetic Field Geometries and High- Beta. Sheared Sheath Structure. Progress Report, June 1, 1975--February 27, 1976

Description: A new approach for the solution of the Vlasov equation for complex magnetic field geometries has been developed using operator techniques. The general approach is illustrated by determining the perturbed distribution function and density operator for the problem of shear stabilization of drift waves for transverse and arbitrary directions of propagation. The ensuing corrections to stability criteria of current theories are obtained for certain domains of physical parameters. Preliminary work on… more
Date: February 1, 1976
Creator: Bakshi, P. & Kalman, G.
Partner: UNT Libraries Government Documents Department
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Transient response of three-layered rings

Description: Hamilton's principle is used to derive equations of motion for a linear elastic three-layered ring. The theory includes the effects of shear deformation and rotatory inertia in each layer and radial strain effects in the middle layer. A convenient computational technique is developed for transient response evaluation without resorting to finite-difference or finite-element approximations. A companion experimental study was conducted using three different rings. All rings had aluminum inner and … more
Date: February 1, 1975
Creator: Sagartz, M. J.
Partner: UNT Libraries Government Documents Department
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Review of actinide-sediment reactions with an annotated bibliography

Description: The annotated bibliography is divided into sections on chemistry and geochemistry, migration and accumulation, cultural distributions, natural distributions, and bibliographies and annual reviews. (LK)
Date: February 10, 1976
Creator: Ames, L. L.; Rai, D. & Serne, R. J.
Partner: UNT Libraries Government Documents Department
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Maximally Concentrating Optics for Photovoltaic Solar Energy Conversion

Description: The use of a two-stage concentrator with a fresnel lens primary and a non-imaging dielectric totally internally reflecting secondary, has unique advantages for photovoltaic concentration. This new design has a much larger acceptance angle than the conventional lens-cell concentrating system. In the continuation of this research, an optimally designed prototype which employs a 13.6-cm diameter flat fresnel tons as the primary focusing device, a dielectric compound hyperbolic concentrator (DCHC) … more
Date: February 27, 1986
Creator: Winston, R.; O'Gallagher, J. & Ning, X.
Partner: UNT Libraries Government Documents Department
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Estimation of gas leak rates through very small orifices and channels. [From sealed PuO/sub 2/ containers under accident conditions]

Description: As a result of a literature search, equations have been compiled for estimating the flow rates of pure gases through very small orifices and capillaries. Such equations might be useful in establishing upper limits of leak rates from sealed PuO/sub 2/ containers under accident conditions.
Date: February 1, 1977
Creator: Bomelburg, H. J.
Partner: UNT Libraries Government Documents Department
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Supporting documents for LLL area 27 (410 area) safety analysis reports, Nevada Test Site

Description: The following appendices are common to the LLL Safety Analysis Reports Nevada Test Site and are included here as supporting documents to those reports: Environmental Monitoring Report for the Nevada Test Site and Other Test Areas Used for Underground Nuclear Detonations, U. S. Environmental Protection Agency, Las Vegas, Rept. EMSL-LV-539-4 (1976); Selected Census Information Around the Nevada Test Site, U. S. Environmental Protection Agency, Las Vegas, Rept. NERC-LV-539-8 (1973); W. J. Hannon a… more
Date: February 1, 1977
Creator: Odell, B. N.
Partner: UNT Libraries Government Documents Department
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ANL ITER high-heat-flux blanket-module heat transfer experiments

Description: An Argonne National Laboratory facility for conducting tests on multilayered slab models of fusion blanket designs is being developed; some of its features are described. This facility will allow testing under prototypic high heat fluxes, high temperatures, thermal gradients, and variable mechanical loadings in a helium gas environment. Steady and transient heat flux tests are possible. Electrical heating by a two-sided, thin stainless steel (SS) plate electrical resistance heater and SS water-… more
Date: February 1, 1992
Creator: Kasza, K. E.
Partner: UNT Libraries Government Documents Department
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Three-body approach to the single scattering optical potential. [Watson and KMT multiple scattering theory]

Description: The single scattering optical potential was in the multiple scattering approaches of Watson and KMT. Since the kinematics of single scattering is three-body in nature, one builds a three-body model of this term. This approach can include the proper kinematics for the struck nucleon, the identity of the target nucleons, and the binding interaction of the struck nucleon. Integral equations of the Faddeev type are derived for both the Watson and KMT single scattering optical potentials. Unitarity … more
Date: February 1, 1977
Creator: Tandy, P. C.; Redish, E. F. & Bolle, D.
Partner: UNT Libraries Government Documents Department
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Explicit inverses of some special matrices (with a few computer programs)

Description: Explicit inverses of some classes of special matrices are presented. In Section I, the tridiagonal matrices are discussed. In Section II a discussion is given of an algorithm due to Sherman and Morrison, which is useful in finding the inverse, when an explicit inverse is known for an unperturbed matrix. Section III presents inverses of some patterned matrices. Appendix A and Appendix B contain computer programs of some of the problems discussed in Sections I, II, and III. (auth)
Date: February 1, 1976
Creator: Uppuluri, V R. R. & Kirk, B L
Partner: UNT Libraries Government Documents Department
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Sector 30 collimator radiation

Description: The collimators at Sector 30 of the SLAC accelerator are designed to scrape off a significant fraction (e.g., {approximately}20%) of the SLC beam. The electromagnetic cascade shower that develops in the collimator, and in the scraper and waveguide downbeam, leads to very high radiation exposures of TV cameras (and other devices) located nearby. The collimator (point) source accounts for one-third of the dose and is best shielded by extending the radius of the copper scraper. Radiation from the … more
Date: February 22, 1990
Creator: Namito, Y. (Ship Research Inst., Tokyo (Japan)); Nelson, W. R. & Benson, E.
Partner: UNT Libraries Government Documents Department
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Improved real gas routines for Sandia's NASA Ames flow field program

Description: The real gas subroutines in Sandia's version of the NASA Ames flow field code have been extensively revised. Using these modifications the required computer run time for a difficult high Mach number case has been reduced from 1330 seconds to 151 seconds. (auth)
Date: February 1, 1976
Creator: Eaton, R. R. & Larson, D. E.
Partner: UNT Libraries Government Documents Department
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