60 Matching Results

Search Results

Results: 1 - 24 next
open access

Separation of Tuballoy From Metallic Tantalum

Description: Report discussing a method of removing tuballoy (uranium) from metallic tantalum, which involves a double precipitation of tuballoy tetrafluoride obtained by reduction with stannous chloride.
Date: December 28, 1944
Creator: Wagner, E. L.; Gilpatrick, L. O. & Raeuchle, R. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biological Action of Gamma and X-Rays

Description: Report of experimentation on mice of exposure to daily doses of gamma radiation at two rates and the resultant damage.
Date: December 22, 1944
Creator: Lorenz, E.; Eschenbrenner, A.; Derringer, M. & Heston, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Melting Point -- Composition Diagrams in the U-UBr3 System

Description: Abstract. A portion of the liquid-solid phase equilibrium region of the system U-UBr3 has been investigated by the method of thermal analysis. Uranium tribromide was prepared by introducing bromine vapor into a bulb containing finely divided uranium formed from the hydride. Cooling curves were obtained with tribromide and then with various compositions of tribromide and uranium. the information obtained showed that no solid sub halide exists but that the metal was soluble in the halide.
Date: December 20, 1944
Creator: Thurmond, Carl
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metallurgical Laboratory, Chemical Research - Radiation Chemistry, Report for the Month Ending October 31, 1944

Description: Technical report with short reports on (1) Effect of radiation on organic compounds; (2) Effect of radiation on separation processes; (3) Effect of radiation on water and aqueous systems; and (4) Effect of neutrons on graphite.
Date: November 14, 1944
Creator: Hogness, T. R. (Thorfin Rusten), 1894- & Burton, Milton, 1902-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Manufacturing Specifications for the Higinbotham Scaler

Description: Technical report which includes a description of scaling action in a Higinbotham circuit, of operation of the output circuit, of operation of the regulated high voltage supply. Acceptance and performance specifications are given. also included are cuts showing the bottom and top view of a scaler of this type. The scaling circuit diagram and major parts list is attached. To facilitate testing, the circuit of a satisfactory pulse generator is included together with a cathode - follower.
Date: November 9, 1944
Creator: Wakefield, Ernest
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of Radiation on Chromate in Water. III. Inhibition Experiments in the CP-3 Pile

Description: Abstract. The effect of various inhibitors on the production of CrIII in W waters containing chromatic has been studies at a variety of pH's in the CP-3 pile. The addition of 2 ppm NaClO3 appears to have little effect a a pH of 5.3, but 2 ppm NaClO3 cr 0.15 ppm of Cl2 (in the form of NaOCl) somewhat decreases the amount of chromatic reduced at a pH of 7.1. The inhibition is not great enough, however, to reduce the amount of CrIII formed to the maximum concentration permissible at W (0.02 ppm)… more
Date: November 2, 1944
Creator: Bowman, M. G.; Burton, Milton, 1902-; Davis, S. G., 1907-; Ghormley, J. A. & Gordon, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Effects of Neutron Bombardment on the Electrical Resistance of Aluminum, Beryllium and Tuballoy (Uranium)

Description: Abstract. Wigner effects on aluminum, beryllium, and tuballoy have been studied by the electrical resistance method. Samples were exposed during an interval which would have produced an increase of approximately 22% in resistance of AGOT-K graphite. The resistance of tuballoy increased approximately 1%. It is shown that the increase can be accounted for by the amount of fission product impurity formed during the exposure. Neither aluminum nor beryllium showed any change. In the case of Be,… more
Date: November 2, 1944
Creator: Royal, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Wigner Effect in Graphite, Relationship Between Advantage Factor and Location of Samples in an Operating Pile

Description: Technical report. The extent of the Wigner effect in graphite at any point in a pile is sensitive to the local structural situation. It is greater near a slug. These control experiments give information on changes in graphite to be expected in selected places in the pile.
Date: October 20, 1944
Creator: Novick, A.; Neubert, T. J. & Burton, Milton, 1902-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Thermal Conductivity of Liquid UF6

Description: From introduction: "The measurement of the thermal conductivity of liquid TF6 presented unusual difficulties because of two of its properties which necessitated working with a closed system. The properties were (1) the liquid can exist as such only above 64.05°C. at which temperature its saturated vapor pressure is 1140 mm. of mercury, and (2) the compound reacts rapidly with moist air. Also because of the liquid's extremely corrosive nature, it was necessary to design a cell of special corrosi… more
Date: October 11, 1944
Creator: Priest, Homer F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Introduction to Diffusion Theory and to Pile-Theory

Description: The following report describes and foretells the situation in medium in which neutrons are being (a)produced as fast neutrons, (b) slowed down to thermal speeds by impacts with nuclei, and (c) absorbed by nuclei in such a manner that sometimes fresh fast neutrons appear at the place where a thermal neutron has just appeared.
Date: October 5, 1944
Creator: Darrow, Karl K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uranium Oxide Slurry Pumping Experiments

Description: Abstract: Experiments on colloid milling and pumping show that uranium trioxide, when carefully dehydrated, can be dispersed in water to form a relatively stable slurry, suitable for a homogeneous slurry pile. At temperatures considerably below those of anticipated pile operation particle size growth occurs attended by increase in settling rate and decrease in viscosity. Theses properties of the slurries may be strongly affected by impurities present as well as by special operating condition… more
Date: September 15, 1944
Creator: Brandt, R. & Dean, G. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Properties of Uranyl Fluoride

Description: Abstract: Pure UO2F2 is made by reaction between anhydrous HF and pure UO3. Although it is difficult to prepare free of water, it is not very hygroscopic. Prolonged heating at 100-105 degrees releases 99.9% of the water in an aqueous solution; the rate of loss of water is very small after saturation is reached. X-ray diffraction data give a density of 6.2 for the solid. The density of a 1.004 M solution is 1.274; the density of a saturated solution (5.130 M) is 2.400. The densities of F-9 s… more
Date: September 11, 1944
Creator: Dean, G. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Test Results on Bias Setting for the Chicago Scaler Offner Models

Description: Abstract: The counting accuracy of the Chicago Scalers, Models 961A and 961B, is a function of the bias setting of the limiter (V2). this report gives quantitative data supporting this thesis. A method of making bias settings is suggested. These tests were run at the suggestion of Mr. V. C. Hanson.
Date: September 11, 1944
Creator: Bradley, Wendell H.; Epstein, Bernard. & Wakefield, Ernest
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Third Form of Bismuth Phosphate - X-ray Study

Description: Abstract. In addition to the hexagonal and monoclinic bismuth phosphate precipitates, whose structures are now known, a third crystalline phase has been found to appear in BiPO4 precipitates after (a) extremely long digestion in concentrated nitric acid; (b) oven drying at 800 degrees to 1000 degrees. Thought very small single crystals of the component have been isolated, nor crushed sample contained less than 30% of the beta-form. The cell size and symmetry of the crystal indicates that the… more
Date: September 7, 1944
Creator: Mooney, Rose Camille Le Dieu
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preparation of Carrier Free Zr-Cb Tracer, Problem Assignment No. 263-X61C, Progress Report

Description: Technical report abstract. A rapid procedure for the preparation of very pure carrier-free Zr and Nb tracer involves the chloroform extraction of the cupferrides of Zr and Nb activities from process solutions. Zr and Nb form very stable chloroform soluble cupferrides in acid solutions (CK-993) and are separated from other fission elements almost quantitatively to yield pure mixture of Zr and Nb activity. A minimum of operations is required and the method is easily adaptable to remote control.
Date: August 28, 1944
Creator: Marinsky, Jacob A. (Jacob Akiba), 1918-2005 & Ballou, Nathan Elmer, 1919-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electrolytic Production of Uranium from Solutions of its Tribromide in Fused Salts

Description: Abstract. the electrodeposition of uranium metal, in the form of tree-like deposits, from molten strontium halide baths is described. Under the best conditions studied, approximately 40% recovery is attained. Freedom from side-reactions of the reduced uranium with anode products and/or refractory materials, and high cathode current densities appear to be essential to the success of the process. the refining of uranium under similar conditions appears to occur quite readily, with approximatel… more
Date: August 15, 1944
Creator: Webster, Richard A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Identification and Crystal Structure of Barium Hydrogen Phosphate

Description: From abstract: "The report describes the complete structure of barium hydrogen phosphate, Ba HPO4, as determined by means of x-ray diffraction. The crystal is orthorhombic, with cell dimensions given by a=5.71 A b=7.05 A c=4.61 A. The calculated density is 4.15gm/cm[^]3 for two molecules in the unit cell. The space group is C[subscript]2v[superscript]7-pmn. The barium, phosphorus, and two sets of oxygen lie in the plane of symmetry. The third set of oxygens are in general positions. Parameters … more
Date: August 8, 1944
Creator: Mooney, Rose C. L.; Compton, A. H.; Allison, Samuel King, 1900-1965; Stearns, J. C. & Zachariasen, William H. (William Houlder), 1906-1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Behavior of Some Solid Materials Under Pile Operating Conditions

Description: Technical report abstract. The present state of knowledge concerning the effect of pile radiation on a variety of solid materials is reviewed. Radiation corrosion will not be a serious hazard for aluminum or stainless steel but it can be for iron or lead if either are exposed to water. Apart from corrosion the principal uncertainty is in regard to the Wigner effect on the behavior of metals. There is at present no ground for optimism regarding the behavior of tuballoy. The effect on alumin… more
Date: July 20, 1944
Creator: Burton, Milton, 1902- & Seitz, Frederick, 1911-2008
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metallurgical Laboratory, Chemical Research - Radiation Chemistry, Report for the Month Ending June 30, 1944

Description: Technical report with short reports on (1) P-9 recovery from UO2F2 solution; (2) Correlation of theories on action of radiation on matter; (3) Literature surveys on organic compounds and on chemistry of UO2F2; (4) effect of radiation on organic compounds; and (5) Effect of radiation on 100 area construction materials.
Date: July 14, 1944
Creator: Hogness, T. R. (Thorfin Rusten), 1894- & Burton, Milton, 1902-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen