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Computer description APPR-1 simulator

Description: The APPR-1 is a pressurized water reactor having a low specific heat fuel and a water primary coolant. The primary coolant loop delivers heat from the reactor to the steam generator. The secondary water in the steam generator is converted to steam and then taken to the turbine to drive an electrical generator. The simulation of this system is broken down into three primary areas: the neutron kinetics in the reactor which are necessary to generate the primary power function, the heat transfer… more
Date: December 15, 1958
Creator: RCA Service Company
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An approach to the study of solid state bonding

Description: The program objective has been to investigate the possible similarity between a bond interface and a grain boundary. The criterion for establishing the similarity of a bond interface and a grain boundary was the migration characteristics of the boundary under the influence of controlled orientation, strain level, temperature and time. In addition, the orientation dependency of the "threshold", or minimum deformation, for bonding would have to be determined. The initial bonding studies were to … more
Date: 1959
Creator: Steele, R. K. & Kozol, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Pebble Bed Reactor Program

Description: Several different types of experimental facilities have been evaluated to determine the most suitable and economical means of demonstrating the technical feasibility of the Pebble Bed Reactor concept. The criteria for demonstrating technical feasibility are: 1) bulk irradiation of fuel elements in order to obtain statistical data on performance, 2) Maintenance of system activity at specified levels, and 3) Feasible maintenance procedures. An additional criterion, which is required to achieve b… more
Date: 1959
Creator: Sanderson & Porter, Inc
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Interpretation of Westwood, New Jersey Rainfall Data

Description: "Progress is reported in an evaluation of fission product concentration in rain as a function of time, location, and meteorological setting. Data on rainfall collected at Westwood, N. J., were analyzed for information on the mechanisms of fallout deposition, seasonal variations in fallout, the stratospheric residence time of W/sup 185/ resulting from Operation Hardtack, and the accuracy of pot samplers for sample collection. Data from other collection stations were also analyzed for consistency… more
Date: September 15, 1959
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Electrical Resistivity of Liquid Sodium and Dilute Sodium Alloys. Final Report

Description: "The factors of atomic size, ion core potential, and charge, which contribute to the increment in electrical resistivity produced by solutes in metallic solutions, were separated and experimentally evaluated in liquid sodium. The results are expressed in a semi-empirical relationship which defines the increment in resistivity of a monovalent solution as the sum of the fractional difference in atomic volume of solute and solvent and the difference in atomic number of Na and the solutes Li, K, Cs… more
Date: October 1959
Creator: Freedman, James R. & Robertson, W. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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568 Report

Description: Final report for a grant contract documenting information about the scope of the project and results.
Date: 1960
Creator: Pollard, Ernest C. (Ernest Charles), 1906-1997
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bremestrahlung in p-p-Collisions at an Energy of 150 MeV

Description: The differential cross-section for bremestrahlung in p-p collisions at an energy of 140 Mev is calculated at the upper end of the photon spectrum. the only transition which is considered is the E2 transition between 1D2 and the 1S0 state. The Siegart theorem is used and influence of the Coulomb force between the two protons is neglected.
Date: 1960
Creator: Dullemond, C. & de Swart, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Decontamination and Recovery of Precious Metals

Description: "This is the second quarterly report under Contract AT(30-1)-2528 for the decontamination and recovery of precious metals from contaminated scrap. the emphasis on the analytical chemical techniques and methods was continued during this report period."
Date: 1960
Creator: Nuclear Materials and Equipment Corporation
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fuel Element Development Program for the Pebble Bed Reactor

Description: ...Development during this quarter have caused a shift in emphasis of the Pebble Bed Reactor Fuel Element Development Program from coatings on the sphere surface to coatings on individual fuel particles as the major deterrent to fission product leakage. In a high level irradiation test, cracks developed in the coatings of specimens coated with pyrolytic carbon and siliconized silicon carbide. In another high level irradiation test, a graphite sphere fueled with Al2O3 coated with UO2 particles … more
Date: 1960
Creator: Sanderson & Porter, Inc.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Pebble Bed Reactor Program

Description: The coolant stream of all nuclear reactors caries some activity due to one or more of the following: a) neutron activation of coolant atoms, b) neutron activation of corrosion products carried by the coolant stream, c) fission recoil into the coolant stream, d) fission products leaking into the coolant stream. The Pebble Bed Reactor is not concerned with (1) and (b) since the helium working fluid, or coolant, has an activation cross-section which is essentially zero and its inert chemical natu… more
Date: 1960
Creator: Sanderson & Porter, Inc.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Synthesis of Semi-Conductor Materials by Radiation Included in Reactions

Description: "Progress is reported on: design of a continuous flow system for the irradiation of silane using a Cos5 source; pile irradiation of silane samples at elevated temperatures; investigation of materials other than silane, including nonsilicon compounds as well as those containing the silyl group; modification of the existing vacuum system for handling larger quantities of silane as well as increasing the accuracy of the pressure measurements; and use of an electric discharge for the decomposition … more
Date: 1960
Creator: Goldman, Richard & Held, Kelman
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Theoretical and Experimental Study of Optical Fibers

Description: A geometrical treatment has been used to outline the theoretical properties of optical fibers which are imperfect as well as geometrically and optically perfect. Experiments have been performed to measure some to the optical properties of individual fibers and fiber bundles.
Date: April 1, 1960
Creator: Potter, Robert J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Conical Refraction in Crystal Optics and Hydromagnetics

Description: When light propagates with the wave normal in the direction of an optic axis of a biaxial crystal, the usual ray theory breaks down. This phenomenon can be analyzed by means of an asymptotic solution of Maxwell's equations. The intensity is governed by a partial differential equation within the phase surfaces, instead of ordinary differential equations along rays. This example slows that light does not always propagate along rays. A similar phenomenon occurs in hydromagnetics.
Date: April 22, 1960
Creator: Ludwig, Donald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radium and Mesothorium Poisoning and Dosimetry and Instrumentation Techniques in Applied Radioactivity

Description: "The study of the toxicity of Ra and MsTh(Ra/sup 228/) in humans was continued. Several Thorotrast cases were also examined. Physical and clinical studies were made on 151 persons. In all cases possible gamma ray measurements were made of Ra and MsTh decay products retained in the body, alpha -ray measurements of Rn and Rn/sup 220/ in breath, a complete medical history was taken, a complete x-ray examination was made of the skeleton, and urinalysis, hematological, and blood chemistry studies we… more
Date: May 1960
Creator: Evans, Robley D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

First Quarterly Report - The Study of the Potential Applications of Radioisotope Technology to Water Resource Investigations and Utilization

Description: The objective of the study which is being carried out under contract AT(30-1)-2477 is the exploration of all aspects of research in water resources and supply to determine the potential for using radioisotope technology in this research. Problem areas in the application of tracers in this research are being investigated through the evaluation of past experimentation with radioisotopic techniques and through discussions with those who are active in this work. A series of suggestions relating to… more
Date: June 1, 1960
Creator: Isotopes Incorporated
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metastable States of Hyperfragments and the Anomalous Magnetic Moment of the Λ-Hyperon

Description: "We want to point out that there is a possible method for determining the anomalous magnetic moment of the Λ from the observation of metastable states of hyperframents. There are two possible sources for the apparent difference of binding energies of a hyperfragment. One of these comes from the difference of Q values due to the decay into an excited and ground states of the residual nucleus. The other possibility will arise if there exists a metastable state of the decaying hyperfragment."
Date: June 9, 1960
Creator: Iwao, Syurei
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The p-n Cross Sections onf Ti47, V51, Cr52, Co59, and Cu63 from 4 to 6.5 Mov

Description: Absolute (p,n) cross sections have been measured for Ti47, V51, Cr52, Co59, and Cu63 at energies between 4 and 6.5 Mov. These data plus earlier measurements of the cross section for inelastic proton scattering have been used to estimate total proton absorption cross sections for V51 and Co59. An optical model calculation using parameters giving a good fit to elastic scattering measurements predicts an absorption cross section in good agreement with the measurements for Co59. For V51, some sets … more
Date: June 15, 1960
Creator: Taketanit, H. & Alford, W. P. (William Parker), 1927-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thorium Oxide Infiltration of Graphite Spheres

Description: Work on the preparation of graphite spheres containing thorium oxide for use as breeder elements in the Pebble Bed Reactor-Steam Power Plant is described. Graphite spheres of varying density were infiltrated with thorium nitrate solutions, followed by denitration to thorium oxide.
Date: June 15, 1960
Creator: Parker, W. E. & Rusinko, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Respiratory Protective Equipment, Progress Report for June 1959 to April 1960

Description: "Dust and gas masks and respirators have been an effective method under certain environmental conditions to reduce the inhalation of toxic aerosols. Under many conditions, however, their efficacy has been seriously questioned. It is the purpose of this study to evaluation over-all respirator performance on fine aerosols and to develop equipment whereby a greater degree of respiratory protection may be assured with reliability for highly toxic atmospheres."
Date: June 27, 1960
Creator: Silverman, Leslie; Fitzgerald, J. J., (Joseph James), 1919-; Burgess, William A.,1924-; Corn, Morton & Stein, Felix
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On the Kinetic Theory of Steady Gas Flows

Description: An approximate Boltzmann equation, known as the single relaxation model is studied here. This equation is linearized and the fundamental solution is considered. Following N. Grad, the solution, asymptotic in small values of the ratio of mean-free-path to distance from the origin, is sought. It can be shown that the fundamental solution itself gives the asymptotic description of the flow field past an object. This solution gives the asymptotic description when the distance from the origin is… more
Date: June 28, 1960
Creator: Sirovich, L., 1933-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Precise Measurements of the Mean Lives of µ+ and µ- Mesons in Carbon

Description: "The lifetimes of approximately 6 million positive mesons have been measured using a crystal controlled oscillator as a clock. The resulting decay curve was analyzed on the IBM 650 digital computer and gave a mean life of 2,211 plus or minus 0.003 µsec. The mean life of negative mu mesons in carbon was also measured and found to be 2,043 plus or minus 0.003 µsec. The resulting nuclear capture rate is (0.373 plus or minus 0.011)x10 to the 5th/sec, assuming that the decay rate of a negative mu m… more
Date: August 1960
Creator: Reiter, Richard A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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