UNT Libraries Government Documents Department - 168 Matching Results

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Additional Extraction and Ion Exchange Studies of Temple Mountain District Ores

Description: Uranium extraction of 95% has been obtained from samples of Temple Mountain ore by a cyclic test procedure in which the new feed was not roasted. This procedure involved acid leaching the ore, flotation and roasting of the carbonaceous material, and acid leaching the roaster calcine.
Date: July 30, 1954
Creator: Jones, J. Q. & Viklund, H. I.
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Aerosol Collection by Wetted Fiberglass Media

Description: A wet collection system for aerosols has been developed using fibrous media. Tests show the performance to be in accord with recently developed theory of collection by fibrous media. The effects of varying aerosol particle size, particle density, and gas velocity have indicated that inertial impaction is the primary collection mechanism. Three-year operating experience on several full scale plant installations shows reliable performance.
Date: April 28, 1954
Creator: Leary, Joseph A.; Clark, Robert A.; Hammond, R. Philip & Leopold, Charles S.
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Airborne Reconnaissance in Southwestern Arkansas

Description: Introduction: Reconnaissance for uranium in central and southwestern Arkansas was carried out as a joint project of the U.S. Atomic energy Commission and the U.S. Geological Survey during March and May 1954. The project was planned as an investigation of several areas of known abnormal radioactivity, and as a search for others, by airborne and ground radiometric reconnaissance.
Date: December 13, 1954
Creator: Malan, R. C. & Nash, A. L.
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Airborne Reconnaissance Survey of Northwestern Arizona (Arizona Strip) and Southwestern Utah

Description: Abstract: From December 1953 to May 1954 an extensive airborne reconnaissance program was conducted in northwestern Arizona (Arizona Strip) and southwestern Utah. Five surface anomalies were detected, one of which has possible commercial value. All anomalies are within the boundaries of National Park Service jurisdiction, consequently, this report is not for public distribution until clearance is obtained from the National Park Service. A preliminary airborne reconnaissance program was also con… more
Date: August 1954
Creator: Meehan, R. J.; Lovejoy, Earl M. P. & Rambosek, A. J.
open access

Assay of ICPP Uranium Solutions

Description: Abstract: "The method of non-destructive assay for uranium is being developed for application to CPP solutions. The equipment has been calibrated for product strength solutions and used for assaying some "unknowns". Additional work has also been done on solutions diluted to 1/10 of product strength. Experimental data on calibration, assaying, and reproducibility tests are given. It appears feasible to obtain data with 1 per cent standard deviation on product solutions with the present facilit… more
Date: 1954
Creator: Forbes, S. G.
open access

Behavior of Transistors in a Magnetic Field

Description: Experiments are described which show that magnetic fields can exert a controlling influence on the operating characteristics of point contact transistors. The effect is especially evident when the transistor is operated in its negative resistance region. The frequency of an oscillator can be varied, or a switch made to trigger by applying a magnetic field to the transistor. Some applications of the principle are suggested; many more are evident.
Date: August 11, 1954
Creator: Sander, Howard H.
open access

Chemical Development, Quarterly Progress Report, October-December 1953.

Description: Introduction - The work of the Chemical Development Group has included studies on the thermal and radiation stability of organic materials suitable for reactor coolants, the thermal and radiation stability of zirconium hydride, reactor safety devices involving chemical systems, and general analytical development.
Date: June 15, 1954
Creator: Loftness, R. L.
open access

The Chemical Effects of 1 Mev Electrons on BrF3 at 25 degrees C

Description: "An investigation of the chemical effects of 1-Mev electrons on BrF3 at 25 degrees C has been carried out. Pressure measurements taken during the irradiation suggest the presence of Br2 and BrF5 as decomposition products and a fractional distillation of the irradiated liquid confirmed their presence. The extent of decomposition was determined both by fraction distillation and spectrophotometric methods. The radiation effect seemed to reach saturation when approximately 10 per cent of the BrF3… more
Date: October 1, 1954
Creator: Yosim, S. J.
open access

The Chemistry of Vanadium: A Summary of the Non-Project Literature Through November, 1952

Description: The non-project literature concerning the chemistry of vanadium has been summarized through November, 1952. The report is presented in terms of izo- and heteropoly vanadates and cationic forms of pentavalent vanadium, complexes of di-, tri-, and pentavalent vanadium, and oxidation potentials of various vanadium systems. A bibliography of 93 references is included.
Date: June 25, 1954
Creator: Frank, Andrew J.
open access

A Comparison of the Neutron Yields from Low-Voltage Sources

Description: The description of the thick-target neutron yields from the D(t,n)He4 and the D(d,n)He3 reactions is calculated as a function of the energy of the bombarding particles. For 60-kev particles the ratio is 108. I increases to 168 at 100 Kev and to 194 for 120-kev particles. A qualitative discussion of the yields from various deuterium target leads to the conclusion that the greatest yield would come from the target which has the lowest stopping cross section per deuterium atom.
Date: October 6, 1954
Creator: Cooper, John N.
open access

A Conceptual Design of a Thorium-Uranium (233) Power Breeder Reactor

Description: From abstract: A conceptual design study has been performed for a sodium cooled, graphite moderated, thermal power-breeder reactor utilizing the Thorium-Uranium 233 breeding cycle. Several aspects of the design of the system are considered but no attempt has been made to supply all the details. It appears that the design presented is feasible and will allow the production of economic power as well as full utilization of thorium resources.
Date: February 1, 1954
Creator: Henrie, J. O. & Weisner, E. F.
open access

Corrosion Effects of Lowering the pH in TBP Waste Storage Tanks

Description: Large savings in waste storage space may be realized by lowering the pH at which TBP waste is stored. Additional savings in neutralizing chemicals and operating time would also increase the monetary gain from such a process change. However, before such a change could be made, the corrosive effect of TBP waste at a lower pH on the mild steel waste storage tanks had to be determined.
Date: April 6, 1954
Creator: Groves, N. D.
open access

Counting Room Equipment and Procedures and Sample Preparation

Description: The following are some of the equipment currently used in the Health Physics counting rooms at the Laboratory: scintillation counters, end window beta-gamma counters, precipitcon beta-gamma counter, autoscaler beta-gamma counter, and continuous flow proportional counter. This technical report describes the equipment, supporting equipment, procedures, and sample preparation in use at the Laboratory.
Date: May 1954
Creator: Weiss, M. M. & Marshall, J. B.
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Criticality studies of interacting cylindrical systems

Description: From introduction: "As a part of this program, this report presents the results of a study of an interacting system in which the conditions for criticality are given in terms of the concentration of fissionable material and the geometry of the system."
Date: October 29, 1954
Creator: Miraldi, F. D.; Farquhar, J., III & Perry, P. I.
open access

Decontamination of buildings used for processing alpha emitters

Description: A report regarding many uranium production plants constructed during the existing emergencies and pressures of World War II that were not intended to be permanent instillations. These plants either contractor or government owned, with buildings on the most part belonging to the contactor and a major portion of the processing equipment belonging to the government, became outmoded with the development
Date: April 29, 1954
Creator: Klevin, Paul B.; Harris, W. B. & Blatz, Hanson I.
open access

A Detector for Sub-Surface Cracks

Description: From abstract: "An instrument was developed to detect cracks within 1/8 inch of the surface of cylindrical uranium fuel slugs. The instrument measures changes in eddy currents that are induced at a frequency of 2 KC."
Date: August 1954
Creator: Goodwin, L. E.
open access

Development of an Ion Exchange Process for the Recovery of Vanadium

Description: A process for recovering vanadium from acid leach liquors by ion exchange using either columns or resin-in-pulp has been developed. The process is economically feasible, and operating techniques were developed which made the process practical from an operating standpoint. The theory, chemistry, and characteristics of the vanadium ion exchange process are fully discussed.
Date: July 30, 1954
Creator: McLean, D. C.; Hollis, E. T. & Eisenhauer, R. A.
open access

The Development of Fixed Screen Resin-In-Pulp Devices

Description: A resin-in-pulp process was developed using a series of fixed-screen or Winchester cells. Various laboratory and pilot plant models were constructed and tested under simulated plant conditions. The fixed-screen device proved very effective in the recovery of uranium and/or vanadium by a continuous, resin-in-pulp process.
Date: August 5, 1954
Creator: Charles, W. D.; Thorpe, D. F.; Lower, G. W.; Kaufman, David; Schiff, Norman N.; Abrams, Charles S. et al.
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