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The Chemistry And Biosynthesis Of Isotopically Labeled Cellulose: Progress Report April 10, 1953

Description: The methods for locating the position occupied by C14 in the glucose units in bio synthesized cellulose were tested with authentic glucose-1-C14, with satisfactory results. Application of the methods to another glucose-C14 yielded results which matched those obtained by an independent investigator.
Date: April 10, 1953
Creator: Curnow, E. L.
Partner: UNT Libraries Government Documents Department
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Sodium-Air Accident Study for a Sodium Cooled Reactor. Technical Memorandum No. 20

Description: The design requirements of a containment building for a sodium-cooled reactor have been investigated from the point of view of a hypothetical sodium - air reaction. In particular, this study was directed toward the containment building of the Enrico Fermi Atomic Power Plant. The hypothetical accident assumes a major leak in the sodium system with a concurrent or earlier failure of the ventilation and cooling systems which allows air to enter the areas around the sodium system which are normally… more
Date: April 6, 1959
Creator: Garelis, Edward
Partner: UNT Libraries Government Documents Department
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Sample Connector and Cable Radiation Measurements. Test Results DL-S-260-S (RNI-9). Section I

Description: The purpose of the test was to determine total radioactivity due to activation and possible contamination of six special connectors and a length of cable suspended in Nuclear Instrument Channel D source range detector well during the performance of the second Reactivity Lifetime Test. This data was to be used to estimate the effective gamma and beta-gamma activity half lives of the sample. The effective gamma and beta gamma half lives of the samples cannot be determined from the information ava… more
Date: April 20, 1959
Creator: Price, F. C.
Partner: UNT Libraries Government Documents Department
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Organic Coolant Reclamation. First Quarterly Progress Report for December 15, 1958 - March 15, 1959

Description: In research on developing a suitable method for organic coolant reclamation, several lines of attack are being followed simultaneously. Model compounds have been utilized in initial experiments. For the vapor phase hydrogenation-cracking study, apparatus has been constructed and several catalysts screened. A nickel on kieselguhr catalyst has been shown to be active in converting biphenyl to a mixture of benzene and toluene. Liquid phase hydrogenation techniques are under study for partial reduc… more
Date: April 15, 1959
Creator: Wineman, Robert J.; Gudzinowicz, Benjamin J.; Lopiekes, D. V. & Scola, D. A.
Partner: UNT Libraries Government Documents Department
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Scaling of Zirconium at Elevated Temperatures. Final Report

Description: The three phenomena observed in the scaling of zirconium, i.e., the change in scaling rate, the color change of the oxide, and growth of the underlying metal, were investigated in the temperature range of 600 to 1300 C. Three grades of zirconium, varying in impurity content, were studied in atmospheres of air, oxygen nitrogen, and oxygen-nitrogen mixtures. The three phenomena were found to occur in each grade of zirconium investigated and in all atmospheres except nitrogen. The times required f… more
Date: April 1959
Creator: Probst, H. B.; Evans, E. B. & Baldwin, W. M., Jr.
Partner: UNT Libraries Government Documents Department
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Status Report on a Study of the Use of Furnace Calorimetry for the Rapid Determination of Specific Heat of Solids at High Temperatures

Description: This report covers the period from February 1, 1959 through April 30, 1959. A method of measuring specific heat represented by the formula oy melts below T = hK/sub 1/ + (-q/k)K/sub 2/ is reported. K/sub 1/ is a function of thermocouple locations in the crucible wall and the thermal diffusivity of the crucible material, while K/sub 2/ is a function of the thermocouple locations and the thermal conductivity of the crucible material. To demonstrate this phenomenon, coating of suspended MgO was ap… more
Date: April 1959
Creator: Boggs, J. H.; Knezek, R. A. & Wiebelt, J. A.
Partner: UNT Libraries Government Documents Department
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Exploration of Radiometric Methods

Description: The compilation of possible analyses in aqueous solution is nearly complete. A chart has been constructed showing the elements which may be determined radiometrically. The radiometric general scheme of analysis has been roughly blocked out. The next-planned phase is to select specific reagents and determine the details of such analysis.
Date: April 2, 1959
Creator: Driscoll, William J. & Scott, Benjamin F.
Partner: UNT Libraries Government Documents Department
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Leakage From Inert Gas System. Technical Memorandum No. 14

Description: Leakage of inert gas into the containment building is examined from the standpoint of sources and rates. Methods of calculating maximum permissible leak rates are presented as well as graphs showing permissible total leak rate as a function of building ventilation. The ventilation system described covers only radioactive requirements. (J.R.D.)
Date: April 4, 1958
Creator: Kendall, W. W. & Chase, W. L.
Partner: UNT Libraries Government Documents Department
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The Cobalt Transformation

Description: The fcc hcp transformation in cobalt powder (equilibrium temperature = 417 C) was studied by x-ray methods and correlated with the density of stacking faults in both phases. Only the hcp phase is present in the cold-worked powder. The line broadening due to local strains and small particle sizes can be essentially removed by annealing at 300 C, leaving a residual broadening that permits a quantitative determination of the density of random growth and deformation faults. The latter are present i… more
Date: April 1, 1959
Creator: Houska, C. R.; Averbach, B. L. (Benjamin Lewis) & Cohen, Morris, 1911-2005
Partner: UNT Libraries Government Documents Department
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Results of Parallel Flow Oscillator Studies. Progress Report No. 2

Description: From the results of the tests it is clear that changing from series to parallel flow effects little or no change i the nature of the reactivity feedback. The physical processes which characterize the magnitude and time dependence of the negative power coefficient of reactivity are apparently identical in both instances. Accordingly, it is reasonable to infer that the conclusions reached as he result of the series flow studies are still valid. These are :(1) the overall power (temperature) coeff… more
Date: April 17, 1958
Creator: Smith, ‎R. R.; Boland, James F., 1927- & Thalgott, F. W.
Partner: UNT Libraries Government Documents Department
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Dynamic n-Measurements on the CEA Magnet Model Mark II under AC and Biased Operation

Description: A method is described to measure dynamic magnetic fields and field gradients to a high accuracy in a strong focusing synchrotron. It employs comparative techniques, peaking strips for timing and an electronic integrator. The method is sensitive down to fields of about 100 gauss. The absolute n-value (field gradient divided by field- is measured to 0.25%, whereas a relative n- distribution over a magnet can be measured to 0.1%. Data are given for CEA magnet Model Mark II between 100 and 4000 gau… more
Date: April 16, 1957
Creator: Nysater, Hans
Partner: UNT Libraries Government Documents Department
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On the Existences of a Magnetic and Focusing Length in a Synchrotron

Description: Measurements of S and s values indicate that existence of two different effective lengths in the azimuthal direction. We call them equivalent magnetic length and equivalent focusing length respectively. We demonstrate that the first one is the length to be used for the calculation of the radius and the second one in the calculation of the field gradient values. The formulas for the structure of the Cambridge Electron Accelerator are derived on this basis.
Date: April 1, 1957
Creator: Dekleva, J. & Lanza, G.
Partner: UNT Libraries Government Documents Department
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The System Zirconium-Iron-Tin. Status Report No. 4 for July 1, 1957- March 31, 1958

Description: A study of the solubility limits of iron and tin in alpha zirconium at temperatures below 500 deg C is in progress. Dilute alloys were prepared by arc- melting using the highest purity materials. Heat treatment of the alloys involves homogenization at 800 deg C followed by severe cold work prior to extended anneals at temperatures between 200 and 500 deg C in 50-degree intervals. Metallographic examination of annealed and quenched structures is the primary mode of investigation. Some magnetic s… more
Date: April 24, 1958
Creator: Tanner, L. E. (Lee E.)
Partner: UNT Libraries Government Documents Department
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Crud Pick-up by Mixed Bed Ion Exchange

Description: The residual capacity of mixed resins during the first nine weeks of contact was determined with a synthetic crud in aqueous solution (crud is primary loop water containing suspended corrosion products) containing not less than 5 g of crud per 100 ml of wet resin, and it was compared with the residual capacity of individual cation and anion resins under similar conditions. When fresh anion and cation resins individually and mixed were contacted with a fresh synthetic crud in the range 1.33 to 7… more
Date: April 19, 1956
Creator: Dominik, Walter
Partner: UNT Libraries Government Documents Department
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Upper Atmosphere Monitoring Program

Description: "Radioactive particulates were collected at high altitudes by means of high volume air samplers suspended from balloons. The recirculation problems inherent in sampling dust from stable platforms suspended are discussed in detail and a solution to this problem is offered. The filtration efficiency of IPC paper is described and evidence offered for disagreement between simultaneous aircraft and balloon samples obtained at the same altitude. The development of an accurate air flow meter that is c… more
Date: April 30, 1957
Creator: Stern, Sidney; Zeller, William; Scheckman, Alfred; Stuart, Robley & Jones, Sam
Partner: UNT Libraries Government Documents Department
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Report No. 80 on the Design of a Very High-Speed Computer

Description: "The feasibility of constructing a digital computer about one hundred times faster than present computers, such as ILLIAC, using transistorized circuits and other presently available components and techniques is reported. The results of two design studies are discussed. One involves a minimum of buffer storage in the form of transistor registers, and the other involves a moderates amount of buffer storage in the form of a small-capacity, high-speed, random-access buffer memory. The former desig… more
Date: April 1958
Creator: Gillies, D. B.; Meagher, R. E.; Muller, D. E.; McKay, R. W.; Nash, J. P.; Robertson, J. E. et al.
Partner: UNT Libraries Government Documents Department
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Technical Progress Report

Description: "Discussions on the high-speed computer program include test control design, core storage unit, magnetic drums and tapes, paper tapes, slow circuits, exponent and main arithmetic units, flow charts for arithmetic control, and speed independent designs. Work done in the circuit research program includes flow-gating systems tests and two-wire low swing circuits. Mathematical methods are described for experiments with a floating-point differential equation solver. Switching circuit theory developm… more
Date: April 1958
Creator: Digital Computer Laboratory, University of Illinois Graduate College
Partner: UNT Libraries Government Documents Department
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Injection Trajectories and Beam Matching for the Cambridge Electron Accelerator

Description: "ABS>Injection trajectories were calculated for different injection conditions for the Cambridge Electron Accelerator, considering also the effect of magnetic fringing fields. The general problem of matching the emittance of the linac to the acceptance of the synchrotron in the transversal phase space is considered, and it is shown that this can be done by a set of two quadrupole lenses. In order to eliminate rudial betatron oscillations due to energy deviations of the injected particles, a pul… more
Date: April 17, 1957
Creator: Steffen, Klaus G.
Partner: UNT Libraries Government Documents Department
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Production of Single Crystal Copper Films at Low Temperatures

Description: A method is described for the production of single‐crystal films of copper at temperatures as low as −40°C. This method utilizes the epitaxy of copper on rock salt. A thin layer of copper is evaporated on a single crystal of salt at 350°C. Then a thick layer is evaporated at the low temperature. Films grown by this method have been examined using x‐ray and etching techniques. It was found that some of these films had single‐crystal regions of 1 mm diameter and larger. These crystallites had [10… more
Date: April 1959
Creator: Yelon, Arthur
Partner: UNT Libraries Government Documents Department
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The Validity of the Statistical Theory of Pressure Broadening

Description: The statistical theory of pressure broadening is developed for any interaction law in which the potential energy is inversely proportional to some power of the distance between the molecules, including cases in which the forces change sign. This note is intended to prove two propositions: A. When a spectral line is broadened by single impacts of perturbing molecules and the half-width of the line is delta infinity, the statistical theory of broadening is applicable provided delta infinity . R … more
Date: April 3, 1956
Creator: Margenau, Henry, 1901-1997
Partner: UNT Libraries Government Documents Department
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Prebunching by Velocity Modulation in Linear Accelerators

Description: Methods of prebatching the electron beam by velocity-modulation techniques prior to injection into a linear accelerator are discussed. A particular method (i.e., bunching at the injection energy) is analyzed in detail for one- and tw0-cavidy bunching. The physical design f a single cavity prebuncher is given for a modulation voltage 10 percent of the injection voltage and a drift space of 40 cm.
Date: April 1956
Creator: Smårs, E. A.
Partner: UNT Libraries Government Documents Department
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Precision Beta-Ray Spectroscopy : Termination Report

Description: Detailed information on the radiations associated with several even-even isotopes has been obtained. In some instances enough information has been gathered to allow construction of skeleton energy level diagrams for the isotopes. Activities studied were obtained from pile irradiation of pure odd-even natural isotopes and included Dy160, W182, Sm152, Gd152 and Gd154. Details of the work done on and results obtained for these isotopes are reported in section 3. Some analytic and experimental stud… more
Date: April 17, 1956
Creator: Fowler, C. M.
Partner: UNT Libraries Government Documents Department
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