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Molten-Salt Reactor Program Quarterly Progress Report: July 1960

Description: Report containing ongoing projects and experiments undertaken by the Oak Ridge National Laboratory's Molten-Salt Reactor Program.
Date: December 22, 1960
Creator: Oak Ridge National Laboratory
Partner: UNT Libraries Government Documents Department
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A Device for Continuous Detection of Hydrogen in Sodium

Description: Abstract: A device to detect the presence of hydrogen in sodium has been developed. Such a device, installed in a sodium heated steam generator, would signal the presence of water in the sodium resulting from a leak in the sodium-water barrier.
Date: December 15, 1960
Creator: Strahl, H.
Partner: UNT Libraries Government Documents Department
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Steady-State Tests of a Reactor Safety Device

Description: Introduction: This is the fourth report in a series of reports dealing in particular with a reactor safety device of a double diaphragm type.
Date: December 15, 1960
Creator: Springer, T. H.
Partner: UNT Libraries Government Documents Department
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Anion Exchange of Neptunium in Nitrate Solutions

Description: Technical report. From Abstract : "The absorption and elution of the anionic nitrate complex of neptunium (IV) were studied with several anion exchange resins and under a wide variety of conditions." From Introduction : "The objective of this study was to provide a technical basis for selecting process conditions for the recovery of Np."
Date: December 1960
Creator: Burney, Glenn A.
Partner: UNT Libraries Government Documents Department
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In-Pile Tests of GCRE-IB Prototype Fuel Elements: Interim Report, 1958-1959

Description: Interim report for the Army Gas-Cooled Reactor Systems Program, discussing various tests in a project to "develop and evaluate a ceramic-core, pin-type fuel element" (p. 1).
Date: December 1960
Creator: Watanabe, H. T.; Janne, J. E. & Wilson, W. D.
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Arica Area, Province of Tarapaca, Chile

Description: Abstract: In August 1958 two geologists of the Instituto de Investigaciones Geológicas de Chile made a one-week reconnaissance for uranium of the Arica area in northern Chile.
Date: December 1960
Creator: C., Mario Serrano & H., Erik Klohn
Partner: UNT Libraries Government Documents Department
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SM-1 Research and Development Program: Long-lived Induced Activity Buildup During SM-1 Core I Lifetime. Task XVIII, Phase I

Description: Abstract: The results of activity buildup studies in the SM-1 performed during Core I lifetime (June 3, 1957 to April 28, 1960) are reported. Data are presented on the extent, nature, and mechanism of the buildup of long-lived gamma emitting nuclides in the reactor primary system. Radiation levels after reactor shutdown are presented, as well as mathematical equations used to account for the observed activity levels. The data have shown that Co60 is the major contributor to radiation levels in the SM-1. Co60 activity arises from the cobalt in Haynes 25 alloy flux suppressors, and the cobalt impurity in stainless steel. After 35 months operation at an average power level of 55%, deposited Co60 activity accounted for approximately 83% of the total radiation level (mr/hr) contributed by the long-lived gamma emitting nuclides. The contribution of the primary coolant activity to the total radiation level is insignificant when compared to the contribution of the activity deposited on the walls of the system. The radiation level on the super-heater side of the steam generator was about 1400 mr/hr after 35 months of reactor operation. The percentages of Co60 activity in the coolant and in the deposits were not the same. This indicates either that nuclides are depositing irreversibly on the surface of the system, or that all nuclides are not exchanging at the same rate. The ratio of Co58/Co60 in the deposits shows that a major fraction of the nuclides are irreversibly deposited. Mathematical equations derived during the course of work were used to predict the observed activity buildup on SM-1 primary system surfaces. Certain constants in the the equations were obtained from the experimental data. Calculated values of activity levels based on the equations were in good agreement with the activity levels found on the primary system. The equations may be …
Date: November 30, 1960
Creator: Bergmann, C. A.; Bergen, C.; Cox, J. F.; Chupak, J. & Grant, L. G.
Partner: UNT Libraries Government Documents Department
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Nuclear Superheat Meeting: October 1960

Description: From introduction: This report discusses AEC-sponsored nuclear superheat meetings whose primary purpose is to keep the AEC contractors engaged in nuclear superheat projects abreast of the overall AEC superheat program and to provide a means for the exchange of current technical information.
Date: November 10, 1960
Creator: Mravca, Andrew E.
Partner: UNT Libraries Government Documents Department
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Gas-Cooled Reactors in the USA: A Survey and Recommendation

Description: Report that provides "an understanding of the status of gas-cooled reactors as used for unclassified applications" and determining "phases of advanced research and development needed in the field and from these to recommend a program for high-temperature, gas-cooled reactors" (p. 5).
Date: November 1960
Creator: Armstrong, R. H.
Partner: UNT Libraries Government Documents Department
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Mass Transfer Coefficients and Interfacial Area in a One Stage Pulse Column

Description: From abstract: "Over-all mass transfer coefficients were determined by considering the operation of the pulse column to be a stage-wise process. The area for mass transfer was obtained by direct photographic measurements...The mass transfer coefficient was found to increase when the interfacial tension was reduced..."
Date: November 1960
Creator: Konopik, Alvin Eugene & Burkhart, Lawrence
Partner: UNT Libraries Government Documents Department
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Microwave Measurements of Hall Mobilities in Semiconductors

Description: From abstract: "The Hall mobilities of germanium single crystals were measured with a microwave frequence of 9000 Mc/sec over the temperature range 30°K to 300°K. A rectangular sample occupied the central part of the wall of a rectangular cavity, which was doubly generate in the TE101 mode and in the TE011 mode at a single resonance microwave frequency. The external magnetic field and microwave field associated with one of the two modes gave rise to the other mode of oscillation, owing to excitation by the microwave Hall field. The theoretical analysis was verified by measurements on an n-type sample having a room temperature resistivity of 0.40 ohm cm. The measured Hall mobility at microwave frequencies (with a size correction) was compared with the D.C. Hall mobility between 30°K to 300°K. The maximum discrepancy was 15%. The estimated experimental error in the microwave measurement was 16%. The magnetic field dependence of the microwave Hall mobility in a p-type sample, having a room temperature resistivity of a 0.77 ohm cm, was in qualitative agreement with the D.C. results obtained by Willardson et al."
Date: November 1960
Creator: Nishina, Yuichiro & Danielson, G. C.
Partner: UNT Libraries Government Documents Department
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Seebeck Effect in Magnesium Silicide

Description: From abstract: "The Seebeck coefficient (thermoelectric power) has been measured from 7°K to 1000°K for both n-type and p-type single crystals of Mg2Si...The phonon contribution, Sp, was obtained from the measured Seebeck coefficient by subtracting off the electron diffusion term, Se, which was calculated with the aid of the measured Hall coefficient. The magnitude of Sp was observed to be proportional to T-3 and to show the dependence on sample size and on carrier concentration predicted by the theory of C. Herring..."
Date: November 1960
Creator: Heller, Marvin William & Danielson, G. C.
Partner: UNT Libraries Government Documents Department
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Steam-Cooled Power Reactor Evaluation: Mixed Spectrum Superheater

Description: From introduction: "This report provides the preliminary design for the nuclear portion of a 300 MWe Mixed Spectrum Superheater to be in operation by 1967.
Date: November 1960
Creator: U.S. Atomic Energy Commission
Partner: UNT Libraries Government Documents Department
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Tests on Gas Space Reflective Insulations

Description: Introduction: In August and September of 1960 a test program was carried out by Orenda Engines Limited for Oak Ridge National Laboratory on Reflective Insulations, with the object of determining Heat Transfer data applicable to the design of such insulations in reactor loops.
Date: November 1960
Partner: UNT Libraries Government Documents Department
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Structural Response and Permanent Displacement Measurements

Description: Measurements and visual observations made during the Hardtack II series of underground shots provide basis for conclusions regarding shock-resistant design of protection for cavities in rock and qualitative prediction of permanent displacements in rock due to nuclear detonations. Vibration measurements on blast-resistant construction in soil provided non-nuclear test results which apply to shock resistant design. With varying soil cover, the compressive mode predominated in arch structures and a mass of soil apparently acted with the structure that varied in magnitude in inverse fashion with two depths of cover. Underground structural harmonic response theories were in part verified, for some structures, though the absence of an appreciable flexural mode in buried arch structures was significant.
Date: October 28, 1960
Creator: Sievers, R. H., Jr. & Stacy, A. R.
Partner: UNT Libraries Government Documents Department
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