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Free-Free Gaunt Factors

Description: The hydrogenic (unscreened coulomb) free-free gaunt factors are computed for a wide range of initial energies and photon frequencies. In addition, an average over initial energies with the Maxwell-Boltzmann distribution is performed to give the temperature-average gaunt factors for use on opacity calculations. The relation between these gaunt factors and the rate of bremsstrahlung energy product is given as is the total energy emitted.
Date: November 8, 1957
Creator: Karzas, W. J. & Latter, R.
Partner: UNT Libraries Government Documents Department
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Upper Atmosphere Monitoring Program

Description: "Further work on (a) filter efficiencies and pressure drops for varying flow rates, (b) redesign of the present sampling device, (c) theoretical study on collection by impingement or impaction, and (d) the method used and instrumentation developed for calibration of the previously developed high altitude air flow meter is covered."
Date: November 11, 1957
Creator: Stern, Sidney; Zeller, William; Scheckman, Alfred; Stuart, Robley; Jones, Sam; Scheckman, Alfred et al.
Partner: UNT Libraries Government Documents Department
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Investigation of Bearing Surfaces Using the Electron Microscope

Description: "A test indicated that life of a submersed water lubricated reactor bearing may have been increased when molybdenum wire was in contact with the bearing cage. In an effort to better understand this and other lubrication phenomena, the electron microscope was used to investigate the surfaces of a new bearing race and that of two other races after their immersion in water containing an additive of ammonium molybdate. Results indicated that the microscopy technique was satisfactory for the study o… more
Date: November 29, 1957
Creator: Bowen, P. H.
Partner: UNT Libraries Government Documents Department
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Transient Thermal Stresses in Pressure Vessels

Description: "An IBM 704 computer program is described for the calculation of transient temperature distribution in axially symmetric solid or hollow bodies. It is the first part of Transient Thermal Stresses in Pressure Vessels."
Date: November 12, 1957
Creator: DeVries, J. P. & Nicoll, R. C.
Partner: UNT Libraries Government Documents Department
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Radiochemical Separation and Activation Analysis

Description: "The present facilities at the University of Michigan for research in nuclear chemistry are described. The determination of the cross sections of various (d, alpha ) reactions induced by the 7.78 plus or minus 0.05 Mev deuterons from the University of Michigan cyclotron is presented. The work on the absolute (d, alpha ) reaction cross sections has been aimed at surveying the reaction yields as a function of atomic number with the hope of establishing the presence or absence of closed shell effe… more
Date: November 1, 1957
Creator: Meinke, W. W.
Partner: UNT Libraries Government Documents Department
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Precise Vapor Pressure Measurement At High Temperature

Description: "An apparatus using a silica Bourdon gage is described for the measurement of vapor pressures or dissociation pressures with an accuracy of 0.1 mm and 0.1 deg C up to maximum pressures of atmospheric or beyond and maximum temperatures of 650 to 1250 deg C. The method is applicable to corrosive substances, to substances whose vapor pressure is sensitive to slight changes in composition, and to substances difficult to purify of volatile contaminants which affect the vapor pressure."
Date: November 1, 1957
Creator: Machol, Robert E.
Partner: UNT Libraries Government Documents Department
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Zircex Kinetics And Uranium Loss Study

Description: "A study was made of the effects of temperature, impurities in the hydrogen chloride, flow rates, and niobium content on both the reaction rates and insoluble uranium losses in the Zircex Process is presented."
Date: November 13, 1957
Creator: Carter, Jr, T. J. & Stone, R. A.
Partner: UNT Libraries Government Documents Department
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A Coated Cast Iron Crucible for use with Eutectic Al-Si Alloy in the Temperature Range 595°-650°C

Description: The feasibility of the coated metal crucible as a container for eutectic Al-Si alloy has been proven by test. Small, enamel-coated cast iron pots has been proven by test. Small, enamel-coated cast iron pots have successfully withstood the chemically aggressive Al-Si alloy and the adverse influence of an oxidizing atmosphere for a period of 3 months at 725°C. A similarly coated castiron crucible containing 450 pounds of eutectic Al-Si alloy was successfully tested for 144 days in a jacketing ope… more
Date: November 1957
Creator: Yaggee, F. L.
Partner: UNT Libraries Government Documents Department
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Chemical Processing Department monthly report, October 1957

Description: Record highs were set for Pu output in separations plants and for amount of U processed in Purex. UO{sub 3} production and shipments exceeded schedules. Fabrication of 200 and 250 Model assemblies is reported. Unfabricated Pu production was 8.5% short. Nitric acid recovery in Purex and Redox is reported. Prototype anion exchange system for Pu was tested in Purex. Hinged agitator arms with shear pin feature was installed in UO{sub 3} plant H calciner. Operation of continuous type Task I, II faci… more
Date: November 22, 1957
Partner: UNT Libraries Government Documents Department
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A Stable Multichannel Positive Pion Detector

Description: No Description Available.
Date: November 21, 1957
Creator: Imhof, William; Kalibjian, Ralph & Perez-Mendez, Victor
Partner: UNT Libraries Government Documents Department
open access

Irradiation Processing Department Monthly Record Report: October 1957

Description: This document details activities of the Irradiation Processing Department during the month of November, 1957. A general summary is included at the start of the report, after which the report is divided into the following sections: Research and Engineering Operations; Production and Reactor Operations; Facilities Engineering Operation; Employee Relations Operation; and Financial Operation.
Date: November 20, 1957
Partner: UNT Libraries Government Documents Department
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PAR Loop Schedule

Description: No Description Available.
Date: November 15, 1957
Creator: Schaffer, Jr. & F., W.
Partner: UNT Libraries Government Documents Department
open access

Nitrogen atmosphere at the K Piles

Description: No Description Available.
Date: November 5, 1957
Creator: Brugge, R. O.
Partner: UNT Libraries Government Documents Department
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Hanford Laboratories Operation monthly activities report, October 1957

Description: This is the monthly report for the Hanford Laboratories Operation. Metallurgy, reactor fuels, physics and instrumentation, reactor technology, chemistry, separation processes, biology, financial activities, employee relations, laboratories auxiliaries, radiation protection, operation research, inventions, visits, and personnel status are discussed. This report is for October 1957.
Date: November 15, 1957
Partner: UNT Libraries Government Documents Department
open access

Irradiation Processing Department monthly record report, November 1957

Description: This document details activities of the irradiation processing department during the month of November 1957. A general summary is included at the start of the report, after which the report is divided int the following sections: Research and Engineering Operations; Production and Reactor Operations; Facilities Engineering Operation; Employee Relations Operation; and Financial Operation.
Date: November 20, 1957
Partner: UNT Libraries Government Documents Department
open access

Results of experimental tests simulating supply pressure decrease in a K process tube

Description: Simultaneous reduction of coolant to several or all reactor tubes raises concern not only for the adequacy of protection in the individual process tube but also the reactor as a whole. In event of such flow reduction, the heat generation does not decrease until at least 1.4 seconds have elapsed following the accident. Thus, the water temperature from each tube will rise, and result in an increase in the bulk water temperature. If the increase in bulk water temperature is such that saturation te… more
Date: November 13, 1957
Creator: Toyoda, K. G. & Calkin, J. F.
Partner: UNT Libraries Government Documents Department
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