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Evaluation of process variables in the cation exchange recovery of plutonium from 234-5 building sump water

Description: A previously reported cation exchange process for the recovery of Pu from sump water was studied in order to improve the procedure. The flowsheet calls for adjustment to 0.03M HNO/sub 3/, the addition of NH/sub 4/HSO/sub 3/ for Pu reduction, the addition of Al/sup 3 +/ to complex F/sup -/, followed by passage of the solution through a column of Dowex 50W, X-8 resin. Distribution coefficients were measured between the resin and synthetic sump solutions under a variety of possible simulated flowsheet conditions. By far the highest distribution coefficients were obtained with Pu(III) without the addition of Al. Results with Pu(IV) varied from borderline to unsatisfactory depending on conditions. It is concluded that the process will be satisfactory if the Al addition is eliminated. (JGB)
Date: July 29, 1966
Creator: Ryan, J. L.
Partner: UNT Libraries Government Documents Department
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A Digital Intermittent Data Flow Magnetic Tape Recording System

Description: A unique mechanical drive system with associated transistorized circuitry has been developed to allow digital recording on magnetic tape at carrying data flow rates. The present system records on command at rates up to 40 characters per second with a packing density of 200 characters per inch. The output is on half-inch magnetic tape in a format compatible with conventional playback equipment.
Date: July 1, 1963
Creator: Kannolt, J. R. & Miller, K. H.
Partner: UNT Libraries Government Documents Department
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Definition and Characteristics of a Large Artificial Lightning Generator & Housing

Description: A study has been made of various types of artificial lightning test facilities required to produce an output current waveform of 1 x 50 microseconds with a 200,000 ampere crest current, representing a very severe natural lightning discharge.
Date: July 1, 1968
Partner: UNT Libraries Government Documents Department
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Hanford Laboratories Operation Monthly Activities Report: June 1960

Description: This is the monthly report for the Hanford Laboratories Operation, July 1960. Metallurgy, reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities,, visits, biology operation, physics and instrumentation research, and employee relations are discussed.
Date: July 15, 1960
Partner: UNT Libraries Government Documents Department
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Exact Semiclassical Calculations of Translational-Vibrational Energy Transfer

Description: We present "exact" calculations, by the semiclassical method, of vibrational excitation of a harmonic diatomic molecule A-B, in its ground vibrational state, upon collinear collision with an atom C. Results are compared with those of first-order quantum mechanical time dependent perturbation methods and those of purely classical methods.
Date: July 22, 1966
Creator: Kelley, J. Daniel & Wolfsberg, Max
Partner: UNT Libraries Government Documents Department
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Thermocouple Development for Project Rover

Description: Thermocouples are used for the control and diagnostic measurement of the thermal behavior of cores in the Kiwi and Nerva reactors of Project Rover. The predominant hostile environmental conditions are those of hot hydrogen, hot graphite, and intense nuclear radiation. W/W Re thermocouples, insulated by BeO and encased in Mo or Ta sheaths, seem to show the most promise. Some aspects of thermocouple development, principally shunt effects and sheath integrity, are discussed.
Date: July 28, 1965
Creator: Brown, E A; Goodier, B G; Perry, Jr, J E; Petty, R L; Prince, W R & Tallman, C R
Partner: UNT Libraries Government Documents Department
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Console Networks for Major Computer Systems

Description: A concept for interactive time-sharing of a major computer system is developed in which satellite computers mediate between the central computing complex and the various individual user terminals. These techniques allow the development of a satellite system substantially independent of the details of the central computer and its operating system. Although the user terminals' roles may be rich and varied, the demands on the central facility are merely those of a tape drive or similar batched information transfer device. The particular system under development provides service for eleven visual display and communication consoles, sixteen general purpose, low rate data sources, and up to thirty-one typewriters. Each visual display provides a flicker-free image of up to 4000 alphanumeric characters or tens of thousands of points by employing a swept raster picture generating technique directly compatible with that of commercial television. Users communicate either by typewriter or a manually positioned light pointer.
Date: July 22, 1966
Creator: Ophir, D.; Shepherd, B.; Spinrad, R. J. & Stonehill, D.
Partner: UNT Libraries Government Documents Department
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Failure of the Chapman-Jouguet Theory for Liquid and Solid Explosives

Description: The usual treatment of unsupported detonation, often called the Chapman-Jouguet theory, is based on four assumptions: (1) the detonation approaches a steady state, (2) the flow is laminar and one dimensional, (3) the detonation products approach a state of chemical equilibrium some distance behind the detonation front, and (4) the detonation velocity is the minimum permitted by the conservation conditions. In a recent paper Wood and Fickett (Phys. Fluids 6, 648(1963)) proposed experiments to test the validity of the Chapman-Jouguet "theory", not requiring knowledge or assumptions about the nature of the equation of state of the detonation products, by making variations of the initial state or the explosive. In this paper we report the results of experiments in which (1) the initial state was varied by using mixtures of nitromethane and another liquid made or equal molar parts of nitric acid, acetonitrile, and water, which has the same atomic composition as nitromethane, and (2) the initial state was varied by using TNT as liquid and as solid. These results show that the Chapman-Jouguet theory is violated. The calculated pressures are 15% to 20% below the measured pressures. Results of measurements using other explosives are also presented to support the conclusion that the theory fails. No explanation or alternative theory is offered.
Date: July 29, 1965
Creator: Davis, W C; Craig, B G & Ramsay, J B
Partner: UNT Libraries Government Documents Department
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Almost Exact Sum Rules for Nucleon Moments From An Infinite Dimensional Algebra

Description: Recently there has been a great surge of interest in almost-exact sum rules for the magnetic moments of nucleons. (By almost-exact we mean: exact to all orders in the strong couplings but only the lowest order in electromagnetic and weak couplings.) Besides providing a means for calculation of the magnetic moments on the same level as the calculation of GA/GV by Adler and Weisberger these sum rules, taken together with the Adler-Weisberger sum rule, constitute a useful tool for investigating the nature of the dynamical approximations that underlie higher symmetry schemes.
Date: July 25, 1966
Creator: Beg, M. A. B.
Partner: UNT Libraries Government Documents Department
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Dependence of the Vertical Excitation Energy of Benzene on the Size and Force Constant of the Excited State

Description: Griffing1 computed the vertical excitation energy for the first electronic transition of benzene as a function of the carbon-carbon distance (rn) within the Sklar valence bond (SVB) and Goeppert-Mayer and Sklar molecular orbital (G1SMO) methods to evaluate the change on excitation of the carbon-carbon equilibrium internuclear separation (rn0) and of the corresponding stretching force constant, f. While ring expansion was correctly predicted, both methods appeared to predict that f increases on excitation, contrary to experiment. We shall demonstrate a) that Griffing's paradox may be resolved if terms higher than the second power in rn are included in the energy expressions for the states and b) that a Huckel calculation leads to results qualitatively similar to those obtained from the more elaborate calculations.
Date: July 22, 1966
Creator: Ehrenson, S & Wolfsberg, Max
Partner: UNT Libraries Government Documents Department
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