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Multiplication Measurements with Highly Enriched Uranium Metal Slabs

Description: A series of neutron multiplication measurements with arrays of 1 by 8 by 10 in. slabs of 93.4% U235-enirched uranium metal have been made to provide data from which safety criteria for the storage of these fissile units can be established. Each slab contained 22.9 kg of U235. A maximum of 125 unites was assembled. The arrays studied were cubic lattices of the units and were usually parallelepipedal in shape.
Date: July 27, 1959
Creator: Mihalczo, J. T. & Lynn, J. J.
Partner: UNT Libraries Government Documents Department
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Preliminary Studies of the Adsorption of Uranium in a Resin-In-Pulp System

Description: Data were obtained in non-flowing and flowing (continuous) batch adsorption systems to serve as a guide to the operating conditions that should be used in a resin-in-pulp adsorption system for the recovery of uranium from ores.
Date: July 27, 1953
Creator: Abrams, Charles S. & Kaufman, David
Partner: UNT Libraries Government Documents Department
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Crystallite Sizes of PuO_2 Powders

Description: In connection with studies of the chemical reactivity of PuO_2 to hydrofluorination, samples were examined by X-ray diffraction for crystallite size and perfection. The PuO_2 was formed by thermal decomposition of the oralate. The reactivity of this oxide, as well as that of other solid oxides is affected by the conditions of preparation. Besides the obvious influence of surface, including lattice strain and other structural irregularities in the particles. Each particle is composed of a number… more
Date: July 27, 1956
Creator: Pallmer, P. G.
Partner: UNT Libraries Government Documents Department
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The Suppression of Chlorine Volatilization in Nitric Acid Distillation

Description: Description of Invention: Chloride-induced corrosion is a serious problem in the Purex acid recovery operation and in the evaporative concentration of process streams and waste solutions. In the case of Purex acid recovery, it has been shown that trace chloride will volatilize with the nitric acid and reflux in the acid fractionator, thus causing especially severe corrosion at that point. These traces of chloride may enter the process form several sources, i.e., as an impurity in the technical … more
Date: July 27, 1956
Creator: Moore, R. L.
Partner: UNT Libraries Government Documents Department
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Analysis of Broadened X-ray Diffraction Peaks

Description: This report is a manual describing the methods developed by Stokes (1) and Warren and Averbach (2) (3) for the determination of the effects of cold work by x-ray diffraction methods. Only the method of mathematical analysis is presented while the method of obtaining the necessary x-ray diffraction patterns is not mentioned. This manual will be used for an experimental study of irradiation damage to uranium.
Date: July 27, 1955
Creator: Merckx, K. R.
Partner: UNT Libraries Government Documents Department
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Phase Diagram and Thermodynamic Properties of the Yttrium-Zinc System

Description: Technical report. From Abstract : "Thermal, metallographic, and vapor pressure data were obtained to establish the phase boundaries and the standard free energy, enthalpy, and entropy of formation for the compounds in the yttrium-zinc system."
Date: July 27, 1962
Creator: Chiotti, P. & Mason, J. T.
Partner: UNT Libraries Government Documents Department
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The Preparation and Properties of Distilled Yttrium

Description: From abstract: "Distillation procedures used for purifying yttrium metal, producing metal containing less than 150 ppm oxygen and lower concentrations of most of the other common impurities, are discussed. Some of the physical and mechanical properties of the distilled yttrium indicate: (1) a melting point of 1510°C, (2) a solid state transformation at 1459°C obtained from high temperature resistivity data, (3) a Rockwell H hardness of 60 and (4) improved rolling and swagging characteristics."
Date: July 27, 1962
Creator: Habermann, C. E. & Daane, A. H. (Adrian Hill), 1919-
Partner: UNT Libraries Government Documents Department
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[TDNA Membership Services Report, 2005]

Description: A membership services report for the Texas Daily Newspaper Association, 2005. The purpose of the membership services report to to give TDNA members and associates updates on information regarding the association's progress, accomplishments and other news.
Date: July 27, 2005
Creator: Texas Daily Newspaper Association
Partner: UNT Libraries Special Collections
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Volume reduction system for solid and liquid TRU waste from the nuclear fuel cycle: January--March 1977. [Ash immobilization]

Description: Facilities generating radioactive waste and a fuel processor were contacted to obtain data on types and quantities of waste produced. The incinerator is being modified to allow the burning of liquid wastes. Ash immobilization studies continued with both glass and cement being tested for rendering the ash inert. A drum compactor fabricator has been located who can compress drums to meet program requirements.
Date: July 27, 1977
Creator: Luthy, D. F. & Bond, W. H.
Partner: UNT Libraries Government Documents Department
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Statistical tests for locating power in a Fourier line spectrum

Description: Fourier line spectra are used to detect noise on the electron beam of an electron beam welder. These spectra are calculated from data in the form of x-ray intensity as a function of time. Statistical tests are described that provide a means of determining the presence of random and periodic signals. The tests remove the uncertainty in deciding if power is present and, if so, at which frequencies. The tests have proven to be consistent and reliable. They are of suitable generality to be useful w… more
Date: July 27, 1977
Creator: Dixon, R. D. & Geoffrey, J. R.
Partner: UNT Libraries Government Documents Department
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Low severity coal liquefaction promoted by cyclic olefins

Description: Low severity coal liquefaction allows for solubilization of coal with reduced gas make. These lower severity conditions may result in some selective bond rupture. Promotion of coal solubilization through hydrogen transfer using highly active and effective hydrogen donors is the objective of this study. The highly effective donors being tested are cyclic olefins. Representative cyclic olefins are isotetralin, which is 1,4,5,8-tetrahydronaphthalene, and 1,4,5,8,9,10-hexahydroanthracene. These com… more
Date: July 27, 1992
Creator: Curtis, C. W.
Partner: UNT Libraries Government Documents Department
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CT Scan of NASA Booster Nozzle

Description: We scanned a Booster Nozzle for NASA with our 9 meV LINAC, AmSi panel scanner. Three scans were performed using different filtering schemes and different positions of the nozzle. The results of the scan presented here are taken from the scan which provided the best contrast and lowest noise of the three. Our inspection data shows a number of indications of voids in the outer coating of rubber/carbon. The voids are mostly on the side of the nozzle, but a few small voids are present at the ends o… more
Date: July 27, 2004
Creator: Schneberk, D; Perry, R & Thompson, R
Partner: UNT Libraries Government Documents Department
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National Ignition Facility Incorporates P2/E2 in Aqueous Parts Cleaning of Optics Hardware

Description: When completed, Lawrence Livermore National Laboratory's (LLNL) National Ignition Facility (NIF) will be the world's largest laser with experimental capabilities applicable to stockpile stewardship, energy research, science and astrophysics. As construction of the conventional facilities nears completion, operations supporting the installation of specialized laser equipment have come online. Playing a critical role in the precision cleaning of mechanical parts from the NIF beamline are three pi… more
Date: July 27, 2001
Creator: Gabor, K
Partner: UNT Libraries Government Documents Department
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Manufacturing Ultra-Precision Meso-Scale Targets by Coining Summary Report

Description: There exists a certain type of high energy density physics experiment that requires a very precise, one or two-dimensional sinusoidal pattern to be imprinted on the surface of a thin disc-shaped specimen. Early discussions of potential fabrication processes included precision lapping using a substrate with the sinusoidal patterns, diamond turning, and various vapor deposition techniques. The process of coining, in which the sinusoidal pattern is pressed into the surface of a flat disc, was also… more
Date: July 27, 2004
Creator: Davis, P J; Wall, M A; Hodge, N E & Schwartz, A J
Partner: UNT Libraries Government Documents Department
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Preliminary Report on Coining of Targets

Description: We were tasked with developing a coining technique that would evaluate the feasibility of using a pressing, or coining process to imprint a one-dimensional sinusoidal pattern onto a thin disk specimen. We performed finite element method simulations of the coining process, designed, built, and tested a coining apparatus and tested surrogate materials, and coined a sample of special nuclear material. The preliminary results were encouraging. The pressing of a 3-mm diameter by {approx}100 {micro}m… more
Date: July 27, 2004
Creator: Davis, P; Wall, M; Hodge, N & Schwartz, A
Partner: UNT Libraries Government Documents Department
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Magnetic field components in a sinusoidally varying helical wiggler

Description: One may be interested in a pure multipole magnetic field (i.e., proportional to sin(n{theta}) or cos(n{theta}) whose strength varies purely as a Fourier sinusoidal series of the longitudinal coordinate z (say proportional to cos{sub L}/{sup (2m-1){pi}z}), where L denotes the half-period of the wiggler and m=1,2,3{hor_ellipsis}). Associated with such a z variation, there necessarily will be presented a z component of magnetic field which in the source-free region, in fact, will give rise to both… more
Date: July 27, 1994
Creator: Caspi, S.
Partner: UNT Libraries Government Documents Department
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Fundamental mechanisms in flue gas conditioning. Quarterly report, April 1992--June 1992

Description: SEM pictures of the three mixtures of sorbent and ash from the DITF and the base line ESP hopper ash from Muskingum are shown in Figures 1 through 4. The effects of sorbent addition on particle morphology are evident in Figures 2 through 4 by the presence of irregularly shaped particles and deposits on the surfaces of the spherical fly ash particles. In contrast, the base Ene ash particles have the characteristic relatively smooth, spherical morphology normally associated with pulverized-coal (… more
Date: July 27, 1992
Creator: Snyder, T. R. & Vann Bush, P.
Partner: UNT Libraries Government Documents Department
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Technology development for cobalt F-T catalysts. Quarterly technical progress report No. 2, January 1, 1993--March 31, 1993

Description: During this reporting period procurements and installations were made for the purpose of refurbishing and refitting the two SBCR units that had been used in the recent past for Fischer-Tropsch development projects. The objective of Subtask 2.2 is to test in a slurry bubble column reactor catalysts that have shown satisfactory performance in a fixed-bed reactor. This is necessary because catalysts which perform satisfactorily in a fixed bed environment will not necessarily perform as well in a s… more
Date: July 27, 1993
Creator: Singleton, A. H.
Partner: UNT Libraries Government Documents Department
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Enhancing the use of coals by gas reburning-sorbent injection. Environmental monitoring quarterly report No. 8, April 1--June 30, 1992

Description: Clean Coal Technology implies the use of coal in an environmentally acceptable manner. Coal combustion results in the emission of two types of acid rain precursors: oxides of sulfur (sox) and oxides of nitrogen (NO{sub x}). This Clean Coal Technology project will demonstrate a combination of two developed technologies to reduce both NO{sub x} and SO{sub x} emissions. Gas reburning and calcium based dry sorbent injection. The demonstrations will be conducted on two pre-NSPS utility boilers repre… more
Date: July 27, 1992
Partner: UNT Libraries Government Documents Department
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The Nuclear Detonation Detection System on the GPS satellites

Description: This article begins with a historical perspective of satellite usage in monitoring nuclear detonations. Current capabilities of the 24 GPS satellites in detecting the light, gamma rays, x-rays and neutrons from a nuclear explosion are described. In particular, an optical radiometer developed at Sandia National Laboratories is characterized. Operational information and calibration procedures are emphasized.
Date: July 27, 1993
Creator: Higbie, P. R. & Blocker, N. K.
Partner: UNT Libraries Government Documents Department
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Safety analysis report for packaging for the Idaho National Engineering Laboratory TRA Type 1 Shipping Container and TRA Type 2 Shipping Capsule

Description: The TRA Type I Shipping Container and TRA Type II Shipping Capsule were designed and fabricated at the Idaho National Engineering Laboratory as special form containers for the transport of non-fissile radioisotopes and fissile radioisotopes in exempt quantities. The Type I container measures 0.75 in. outside diameter and 3.000 in long. The Type II capsule is 0.495 in. outside diameter 2.000 in. long. The container and capsule were tested and evaluated to determine their compliance with Title 49… more
Date: July 27, 1992
Creator: Havlovick, B. J.
Partner: UNT Libraries Government Documents Department
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Stochastic differential equations and numerical simulation for pedestrians

Description: The mathematical foundation of the Ito interpretation of stochastic ordinary and partial differential equations is briefly explained. This provides the basis for a review of simple difference approximations to stochastic differential equations. An example arising in the theory of optical switching is discussed.
Date: July 27, 1993
Creator: Garrison, J. C.
Partner: UNT Libraries Government Documents Department
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Trip report: National Research Corporation, Cambridge, MA, July 16, 1953

Description: On July 16, 1953 I discussed with P.J. Clough and J.H. Durant the NRC progress on providing bond layers for extended surface fuel elements. The corrosion testing of four uranium samples, nickel coated by an NRC technique, came to an abrupt and premature end as a result of failures in the testing equipment. The coatings were ruined in the mishap. Similarly coated samples are in the process of being prepared. The corrosion tests will be re-initiated upon completion of the samples.
Date: July 27, 1953
Creator: Pocalyko, A.
Partner: UNT Libraries Government Documents Department
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