Technical Report Archive & Image Library (TRAIL) - 130 Matching Results

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Process Monitor, Mark 10, Model 20

Description: This report describes a specific apparatus used to monitor the intensity of gamma radiation. The report includes a diagram of the apparatus.
Date: August 17, 1946
Creator: Jesse, William P.
Partner: UNT Libraries Government Documents Department
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Processing Leach Solutions From Pyrosulfate Fusions of Salvage Residues for the Recovery of Tuballoy

Description: Report discussing two methods for "the elimination of sulfate and second group interferences in the extraction of tuballoy from residues which have been processed by the pyrosulfate fusion method." Advantages for one of the methods are mentioned.
Date: January 25, 1946
Creator: Ryon, A. D.; Aikin, L. M. & Susano, C. D.
Partner: UNT Libraries Government Documents Department
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The Production of U₂₃₄ by a Modified Calutron

Description: Abstract: Three and nine-tenths milligrams of U234 have been produced using a Calutron. A Beta-size Calutron was modified to produce complete resolution of the U234 beam from the U235 beam. With Beta charge the U234 current was 4 microamperes. The samples were collected upon flat pieces of graphite bent to fit the E curve.
Date: May 21, 1946
Creator: McKinney, C. R.
Partner: UNT Libraries Government Documents Department
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The Quantitative Estimation of the Activity of Beta Particle Emitters

Description: From abstract: "In estimating the activities of β-emitting materials used in the Biology Section, most measurements were made with Geiger-Mueller counters, although Lauritsen electroscopes were used in early work. All samples were mounted on flat porcelain capsules."
Date: October 3, 1946
Creator: Zinn, Walter H. (Walter Henry), 1906-2000; Broido, Abraham; Nordeen, Clifford & Himmelstein, Sheldon H.
Partner: UNT Libraries Government Documents Department
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Radiocarbon from Pile Graphite; Chemical Methods for its Concentration

Description: Abstract. Samples of pile graphite, irradiated in a test-hole at Hanford for 15 months, have been assayed for radioactive C14, yielding 0.38 ± 0.04 microcuries per gram. At this level of activity, the pile graphite contains very valuable amounts of C14. The relation between the above assay and the probable average assay of pile graphite is discussed, and it is concluded that the latter is almost certainly above 0.3 uc/ gram. Controlled oxidation of this graphite, either with oxygen at ~ 750°C,… more
Date: October 10, 1946
Creator: Arnold, James R. & Libby, Willard F.
Partner: UNT Libraries Government Documents Department
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The Reaction of Hexachloropropylene With Metallic Oxides

Description: Abstract: Twenty-two metallic oxides were refluxed with hexachloropropylene. The anhydrous chlorides or other products formed are described for each oxide. The reactions were particularly vigorous with higher valent oxides of the fifth and sixth group elements.
Date: January 14, 1946
Creator: Pitt, B. M.; Wagner, E. L. & Miller, A. J.
Partner: UNT Libraries Government Documents Department
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Recovery From Salvage Residue by Fluorination in Vertical Reactors

Description: Report discussing trial runs of a method of recovery of uranium from salvage residue. The method involves hydrofluorination of the residue to remove large quantities of interfering silicates, followed by a fluorination treatment to remove uranium.
Date: September 6, 1946
Creator: Stevenson, K., Jr.; Blasewitz, A. G. & Clewett, G. H.
Partner: UNT Libraries Government Documents Department
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Recovery of Tuballoy From Standardized Salvage Residues From Beta

Description: Report discussing a methods for recovering tuballoy (uranium) from beta salvage residues. Two methods were discussed: high temperature fluorination and reaction with NaAlCl₄.
Date: 1946
Creator: Calkins, Vincent P. & Larson, C. E.
Partner: UNT Libraries Government Documents Department
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Recovery of Uranium From Beta Salvage Residues by Vapor Phase Chlorination With CCl₄

Description: Abstract: A simple process to recover the bulk of the uranium from ignited beta salvage residues was sought. In preliminary experiments a vapor phase chlorination with CCl₄ for about four hours followed by water and nitric acid leaching was found adequate. Recoveries are estimated at 60 to 90% of the total uranium content.
Date: April 22, 1946
Creator: Veatch, R. W., Jr. & Miller, A. J.
Partner: UNT Libraries Government Documents Department
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Recovery of Uranium From Fiberglass Air Filters

Description: Abstract: Various procedures for extracting uranium from fiberglass air filters have been tested and compared. Satisfactory results which involve the least amount of handling are obtained by simply washing the material with hot 1:1 hydrochloric acid.
Date: August 5, 1946
Creator: Adams, R. H.; Rogers, J. A. & Brown, K. B.
Partner: UNT Libraries Government Documents Department
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The Reduction of Uranium Trioxide by Ethyl Alcohol

Description: Abstract: The effect of temperature upon the rate of reduction of uranium trioxide by ethyl alcohol has been investigated, and a comparison of the reactivity of the dioxide produced at various temperatures has been made. The percent of carbon in the end product has been studied with respect to both temperature of reduction and length of exposure to alcohol. Optimum conditions for the reduction have been suggested.
Date: November 18, 1946
Creator: Haines, B. M. & Calkins, V. P.
Partner: UNT Libraries Government Documents Department
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Report on a Magnetic Drive Design for the Fercleve Coporation

Description: This report discusses the development of a design for a "permanent magnet drive to couple a motor shaft with a pump impeller through a thick metallic diaphragm of small diameter. [...] The following report presents the procedures and results of the magnetic drive development up to date of cancellation and includes the general features of the design which would have been recommended if the contract had not been cancelled" (p. 1).
Date: 1946?
Creator: Williams, W. D.
Partner: UNT Libraries Government Documents Department
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Report on SOM Investigations in Arizona (Except the Plateau Province Area)

Description: From summary: Union Mines' examination of Arizona's pegmatites, lode deposits of the central and southeastern parts of the state, and heavy mineral concentrates from few placer deposits indicates that SOM is practically non-existent in the first two and that minor amounts of monazite and possibly other S-37 minerals are present in the last.
Date: March 26, 1946
Creator: Hill, J. M.
Partner: UNT Libraries Government Documents Department
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Separation of Tuballoy From Tantalum by Chlorination Distillation Process

Description: Abstract: Tuballoy can be effectively separated from tantalum filaments by chlorination of the filaments and subsequent distillation and condensation of tantalum chloride. Apparatus for chlorination of filaments and distillation separation in one unit is under consideration. Chemical methods of separation of tuballoy from distillation residues are being tested.
Date: February 6, 1946
Creator: Adams, R. H.; Rogers, J. A.; Wagner, E. L. & Miller, A. J.
Partner: UNT Libraries Government Documents Department
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The Separation of Uranium From Thorium: The Oxalic Acid Leach

Description: From Abstract: "The use of the oxalic acid method for the separation of uranium from mixed thorium-uranium peroxides has been investigated, and appears to be the most satisfactory of the obvious methods of separation. One oxalic acid leach removes nearly all of the uranium from the thorium with approximately one mg Th/L remaining in the uranium solution phase."
Date: July 3, 1946
Creator: Christopherson, E. W.; Grady, H. R.; Woodard, R. W. & Larson, C. E.
Partner: UNT Libraries Government Documents Department
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Sid Magnet Model Test Results

Description: From introduction: "These data were taken on a 1/16th scale model of the magnet shown on sketch no. FS-2. The object of these measurements was to get information that would determine the final design of the full scale magnet. The one main point to be settled was whether a tapered or a cylindrical pole piece would give the largest value of Hρ for a given power input into the magnet (the cylindrical pole piece is shown in dotted lines in sketch FS-2)."
Date: April 19, 1946
Creator: Sewell, Duane C., 1918-2008
Partner: UNT Libraries Government Documents Department
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Some Studies of the Reactions of Uranium Oxides with Hydrogen, Oxygen and Water

Description: Abstract: The purpose of this research was to obtain data that would be useful in predicting changes that might be expected to occur in the oxidation state and degree of hydration of powdered uranium oxides maintained for long periods of time at temperatures between 30 and 300 degrees C. in the presence of excess water, hydrogen, oxygen and possibly hydrogen peroxide. The reaction of hydrogen and oxygen with water slurries of U3O8 were studied at 100-300 degree C.
Date: June 1946
Creator: Gillies, Daniel M.
Partner: UNT Libraries Government Documents Department
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The Spatial Distribution of Neutrons Slowed Down by Elastic Collisions

Description: Technical report discussion of the complicated problem of the spatial distribution of slowed down neutrons. The introduction covers the current research on the topic. The following chapters cover the topics: (1) approximate treatment and its limitations, (2) age-velocity distribution, (3) general scheme of treatment based on transport equation, (4) Fermi's one-dimensional model, (5) moments, (6) remarks about the distribution function, and (7) point source.
Date: June 11, 1946
Creator: Placzek, G. (George), 1905-1955.
Partner: UNT Libraries Government Documents Department
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Spectrophotometric Evidence for the Existence of UCl₅ as the Double Compound UCl₆ and UCl₄

Description: Abstract: "Spectrophotometric evidence for the existence of UCl₅ as a double compound UCl₆ and UCl₄ has been obtained by studying the absorption spectra of these chlorides in CCl₄ and SOCl2 solutions in the visible and ultraviolet regions of the spectrum."
Date: December 9, 1946
Creator: Sterett, C. C. & Calkins, V. P.
Partner: UNT Libraries Government Documents Department
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