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Thorex Pilot Plant ; System for Concentrating Second Uranium Cycle Product

Description: A system for concentrating uranyl nitrate solutions was designed and installed in the Thorex Pilot Plant. A total of 16,060 g of uranium was concentrated in the system in 68 batch runs. A total of 14,400 g total uranium (14.180 g U/sup 233/) was recovered as product suitable for shipment. Uranium loss to the evaporator condensate was 0.03% of the total uranium processed. The material balance across the system was 98.4%. The average concentration of uranium in the evaporator feed solution was 29… more
Date: January 28, 1957
Creator: Albrecht, W. L.
Partner: UNT Libraries Government Documents Department
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THOREX PILOT PLANT: SYSTEM FOR CONCENTRATING SECOND URANIUM

Description: A system for concentrating uranyl nitrate solutions was designed and installed in the Thorex Pilot Plant. A total of 16,060 g of uranium was concentrated in the system in 68 batch runs. A total of 14,400 g total uranium (14.180 g U/sup 233/) was recovered as product suitable for shipment. Uranium loss to the evaporator condensate was 0.03% of ihe total uranium processed. The material balance across the system was 98.4%. The average concentration of uranium in the evaporator feed solution was 29… more
Date: January 28, 1957
Creator: Albrecht, W.L.
Partner: UNT Libraries Government Documents Department
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A Further Evaluation of the Calder Hall Type of Nuclear Power Plant

Description: Abstract: This report presents the results of plant optimization studies and cost estimates of the reference design for a natural uranium, graphite moderated, gas-cooled reactor and power plant which was described in NAA-SR-1833.
Date: June 28, 1957
Creator: Banks, William F.
Partner: UNT Libraries Government Documents Department
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GRISCOM-RUSSELL TWO-TUBE EVAPORATOR

Description: No Description Available.
Date: June 28, 1957
Creator: Barrett, C.F. Jr.
Partner: UNT Libraries Government Documents Department
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FISSION YIELDS OF Sr$sup 9$$sup 0$

Description: Fission yields were determined from 14-Mev neutrons on U/sup 235/ and U/ sup 238/, thermal neutrons on U/sup 235/, and fission spectrum neutrons on U/sup 235/, U/sup 238/, and Pu/sup 239/. The number of fissions was determined for the Mo/sup 99/ activity. The Sr/sup 90/ was chemically separated and Y/sup 90/ allowed to reach equilibrium. The Y/sup 90/ was separated and counted. (W.D.M.)
Date: October 28, 1957
Creator: Bayhurst, B.P.
Partner: UNT Libraries Government Documents Department
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Internal Performance of Two-Dimensional Wedge Exhaust Nozzles

Description: Memorandum presenting an experimental investigation of four rectangular-throat two-dimensional wedge exhaust nozzles. Three of the nozzles were designed to conform to Prandtl-Meyer streamlines for pressure ratios of 5, 10, and 24, and a fourth, arbitrarily contoured, with a length less than that required for isentropic expansion, was designed for a pressure ratio of about 9.
Date: February 28, 1957
Creator: Beale, William T. & Povolny, John H.
Partner: UNT Libraries Government Documents Department
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Carbide Coatings on Graphite

Description: A method has been developed for the uniform coating of graphite tubes with carbides of niobium, tantalum, and zirconinm by thermal decomposition of their respective halide vapors. Conditions of coating temperature and pressure are so chosen as to prevent the deposition of metal, but to permit the formation of the carbide as rapidly as carbon can diffuse to the surface. If the carbon diffusion can be made the rate-limiting step, the coating process becomes self- regulating and uniform thickness … more
Date: June 28, 1957
Creator: Blocher, J.M. Jr.; Ish, C.J.; Leiter, D.P.; Plock, L.F. & Campbell, I.E.
Partner: UNT Libraries Government Documents Department
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The Primary Quantum Conversion Process in Photosynthesis: ElectronSpin Resonance

Description: Photoinduced electron spin resonance signals have been observed in isolated chloroplasts and other green materials with a growth time not affected by reducing the temperature to -140 deg. This is interpreted in terms of conduction-band and trapped-electron theory.
Date: January 28, 1957
Creator: Calvin, Melvin & Sogo, Power B.
Partner: UNT Libraries Government Documents Department
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Cyclotron Resonance Heating of a Deuterium Plasma

Description: Abstract: "The energy gained by a deuterium plasma, from a three megacycle per second radiofrequency field, was studied experimentally. A static magnetic field, in the form of a "mirror", was used. The coil of an rf resonant circuit, placed at the center of the machine produced a time-varying magnetic field parallel to the static field. This, in turn, induced an electrical field, in an azmuthal direction, which acted on the ions. When this was in synchronism with the cyclotron frequency, the io… more
Date: October 28, 1957
Creator: Chambers, Edmund S.; Lamb, William A. S. & Kippenhan, Dean O.
Partner: UNT Libraries Government Documents Department
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Waste tank temperature studies

Description: This report concerns the continuing problem of providing waste tank designs which will insure safe storage of radioactive waste over long periods of time. These tanks must withstand severe stresses imposed by earth loading, by hydrostatic pressure and by temperature gradients. The temperature gradients are caused by contained in the waste. The waste entering the tank is relatively cold, but the temperature rises rather rapidly to the boiling point as filling proceeds and then the temperature co… more
Date: January 28, 1957
Creator: Cook, M. W. & Gerhart, J. M.
Partner: UNT Libraries Government Documents Department
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Segregation in Arc-Melted Uranium-Niobium Alloys

Description: Report discussing a study aimed at pinpointing the cause of banding segregation in arc-melted uranium-niobium alloys and suggesting possible methods for eliminating banding.
Date: August 28, 1957
Creator: Dickerson, Ronald F.; Foster, Ellis L. & Chubb, Walston
Partner: UNT Libraries Government Documents Department
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A Noble Gas Scintillation Counter

Description: The following report describes a gaseous scintillation counting system, including the production and operation of the counter.
Date: May 28, 1957
Creator: Dickieson, Robert W.
Partner: UNT Libraries Government Documents Department
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Laboratory Tests on Proposed Subgrade and Canal Lining Materials -- Seedskadee Project, Wyoming

Description: Report presenting results of laboratory tests performed on soil samples representing the subgrade and materials proposed for compacted earth linings and embankments for the canals and laterals of the Seedskadee Project, Wyoming (p. 1). Test results and procedures are explained along with recommended use of proposed canal lining materials.
Date: June 28, 1957
Creator: Ellis, W.
Partner: UNT Libraries Government Documents Department
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Low-Speed Cascade Investigation of Thin Low-Camber Naca 65-Series Blade Sections at High Inlet Angles

Description: Report presenting an investigation of 6-percent-thick NACA 65-series compressor blade sections in a two-dimensional porous-wall cascade tunnel at several lift coefficients, angles of attack, and solidities. The useful operating angle-of-attack range was generally found to decrease as inlet angle increases.
Date: June 28, 1957
Creator: Emery, James C.
Partner: UNT Libraries Government Documents Department
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High-Pressure Blowing Over Flap and Wing Leading Edge of a Thin Large-Scale 49 Degree Swept Wing-Body-Tail Configuration in Combination With a Drooped Nose and a Nose With a Radius Increase

Description: "A 49 degree swept-wing complete model equipped for high-pressure blowing full span at two chordwise locations at the leading edge of a full-span wing and over a half-span flap has been tested in the Langley full-scale tunnel to determine the effectiveness of blowing at the leading edge as a supplementary leading-edge stall control at high lift coefficients." The effect of blowing on the lift characteristics, pitching-moment characteristics, and drag characteristics of this particular model is … more
Date: May 28, 1957
Creator: Fink, Marvin P. & McLemore, H. Clyde
Partner: UNT Libraries Government Documents Department
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Effects of wing-mounted external stores on the longitudinal and lateral handing qualities of the Douglas D-558-II research airplane

Description: Report presenting testing of the subsonic and transonic handling qualities of the Douglas D-558-II research airplane using several configurations of mid-semispan external stores in the altitude region of 20,000 to 40,000 feet. The configurations had an underslung pylon on each wing, pylons plus simulated 1000-pound bombs, and pylons with 150-gallon fuel tanks. Results regarding longitudinal stability and control characteristics, low-speed characteristics, and lateral stability and control chara… more
Date: October 28, 1957
Creator: Fischel, Jack; Darville, Robert W. & Reisert, Donald
Partner: UNT Libraries Government Documents Department
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Flutter and Divergence of Rectangular Wings of Very Low Aspect Ratio

Description: "Slender-body aerodynamic theory is used in conjunction with thin-plate theory in the flutter analysis of low-aspect-ratio rectangular wings of constant thickness when chordwise variations of deflections are considered. The spanwise variation of deflection is given by a parabola, and the chordwise variation is allowed complete freedom. The results show the variation of flutter speed and mode shape with aspect ratio" (p. 1).
Date: June 28, 1957
Creator: Fralich, Robert W.; Hedgepeth, John M. & Tuovila, W. J.
Partner: UNT Libraries Government Documents Department
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Incentives for using poison splines at C Pile

Description: The benefits of the poison spline system as developed and partially tested by the Facilities Engineering Operation are considered over a two year period. The full pile operational charge-discharge installation at the end of that time could make the poison spline system a marginal operation. This document list the production gains that are possible, how these gains compare with the cost of the poison spline system, and how this system compares with other available supplementary reactivity contro… more
Date: February 28, 1957
Creator: Franklin, F. C.
Partner: UNT Libraries Government Documents Department
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Static lateral characteristics at high subsonic speeds of a complete airplane model with a highly tapered wing having the 0.80 chord line unswept and with several tail configurations

Description: Report presenting an investigation at high subsonic speeds of a complete model with a highly tapered wing and several tail configurations. The complete model was tested with a wing-chord-plane tail, a T tail, and a biplane tail. A discussion regarding the lateral derivatives and sideslip characteristics is provided.
Date: October 28, 1957
Creator: Goodson, Kenneth W.
Partner: UNT Libraries Government Documents Department
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Use of main-inlet bypass to supply ejector exhaust nozzle at supersonic speeds

Description: Report presenting an analysis to evaluate the effectiveness of supplying secondary airflow for an ejector exhaust nozzle by bypassing from the main inlet. If optimum weight flow is maintained, the performance of the system is about the same as for ejectors supplied by fixed auxiliary inlets up to Mach number 3.0.
Date: February 28, 1957
Creator: Hearth, Donald P.
Partner: UNT Libraries Government Documents Department
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Materials for Liquid Metal Systems

Description: Lecture presented at the Atomic Industrial Forum's Third Course on Reactor Materials, Stanford University, Stanford, California, July 9-19, 1957A review of progress in the use of liquid metals is presented. A number of liquid metals are compared, and the general problems of selecting container materials are considered. In addition. a discussion of corrosion mechanisms and corrosion testing methods commonly employed are examined as well as problems encountered with the liquid metals of greatest … more
Date: October 28, 1957
Creator: Holman, W.
Partner: UNT Libraries Government Documents Department
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