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Preliminary Report on High Concentration Deuterium by Catalytic Exchange Reactions
From abstract: "This report contains the theoretical analysis of a plant to concentrate deuterium from 2 atoms% to 90 atoms% by the NH3-H2 exchange reaction."
Date:
February 4, 1943
Creator:
Mayer, Harris & Bonner, Robert
Object Type:
Report
System:
The UNT Digital Library
An Analytical Method for Determining Hydrogen in Tuballoy
Technical report describing a gasometrical method for the determination of H2 in extruded U rods.
Date:
February 9, 1944
Creator:
Russell, H. W. & Nelson, H. R.
Object Type:
Report
System:
The UNT Digital Library
Uranium Hydride, a Review to January 1, 1944
Abstract. A review of all work on uranium hydride published in the CC, CT, CN and CE reports to January 1, 1944, is presented. Some additional information not yet published has been included, so this report includes all data known from the above sources and at Ames to the above date. This report supersedes all previous report on uranium hydride coming out of the Ames laboratory.
Date:
February 10, 1944
Creator:
Newton, A. S.; Warf, J. C.; Johnson, O. & Nottorf, R.
Object Type:
Report
System:
The UNT Digital Library
The Fission Neutron Spectrum of 25
Abstract: "Photographic plates have been used to measure the energy of neutrons from the fission of 25. The spectrum as inferred from the ranges of 850 protons recoiling in the forward direction shows a very wide maximum at ~1.5 Mev with an exponentially decreasing high energy tail which extends beyond 7 Mev. The minimum energy neutrons recorded were ~700 kv. If the spectrum is extrapolated to zero, one finds that this average neutron energy is about 1.85 Mev. The stopping power of the plates was calibrated by the use of monochromatic neutrons from the Li-7(pn) Be-7 reaction and the d-d reaction."
Date:
February 11, 1944
Creator:
Richards, Hugh T. & Perlman, Isadore
Object Type:
Report
System:
The UNT Digital Library
Metallurgical Laboratory, Chemical Research - Radiation Chemistry, the Effect of Radiation on Water and Aqueous Solutions of Inorganic Substances
Technical report summarizing our knowledge of the chemical effects of ionizing radiation upon water and upon aqueous solutions of inorganic compounds. The types of radiation considered are beta rays, gamma and X rays, and heavy particles, notably neutrons, deuterons, alpha rays and fission recoils.
Date:
February 22, 1944
Creator:
Allen, A. O.
Object Type:
Report
System:
The UNT Digital Library
Specifications for the Freezing Point Method for Determination of the Amount of HF in UF₆
From introduction: "You will find enclosed the specifications for the freezing point method for determination of the amount of HF in UF₆. The specification for cleaning new shipping containers is also included."
Date:
February 26, 1944
Creator:
Priest, Homer F.
Object Type:
Report
System:
The UNT Digital Library
The Heavy-Water Homogeneous Pile: a Review of Chemical Researches and Problems
Technical Report: A generalized review of the chemical problems and researches related principally to the heavy water homogeneous pile is presented herewith. The report covers researches performed principally by the Columbia Group who initiated the study. This report contains a chronological outline of the development, a discussion of some special topics whose significance is paramount in any slurry pile discussion, and finally an outline of important research problems remaining, roughly graded in order of their importance. No attempt has been made to be either complete or detailed in the discussion. The emphasis has been principally on furnishing a broad guide to those who may t some future date take up this work.
Date:
February 28, 1944
Creator:
Hiskey, C. F. & Eidinoff, Maxwell Leigh, 1915-
Object Type:
Report
System:
The UNT Digital Library
Metallurgical Laboratory, Chemical Research - Radiation Chemistry, Report for the Period Ending January 15, 1945
Technical report with short reports covering (1) Effect of radiation on water and aqueous systems; (2) Effect of neutrons on graphite; (3) Effect of radiation on solid compounds; and (4) Scattering, stopping-power, ion-pair production, etc.
Date:
February 1, 1945
Creator:
Burton, Milton, 1902- & Allen, A. O. (Augustine O.)
Object Type:
Report
System:
The UNT Digital Library
Accumulation and Distribution of Radioactive Strontium, Barium-Lanthanum, Fission Mixture and Sodium in Goldfish
This report details an experiment undergone to determine the amount of radioactive strontium, barium-lanthanum, fission mixture, and sodium accumulated by and distributed within non-feeding goldfish. The report includes tables detailing the findings.
Date:
February 15, 1945
Creator:
Prosser, C. Ladd (Clifford Ladd), 1907-2002; Pervinsek, William; Arnold, Jane; Svihla, George & Tompkins, P. C.
Object Type:
Report
System:
The UNT Digital Library
Complexing Agents for the Solvent Extraction of Uranium from Thorium. I. The Use of Thiocyanate in the Extraction of Uranium. II. The Use of Antipyrine in Solvent Extraction
Abstract. In the first section of this technical report a new method of extracting uranium from thorium nitrate solution is discussed. This method consists of extracting an aqueous solution of thorium nitrate, nitric acid, sodium sulphate, and potassium thiocyanate with hexone. By this procedure, using an equal volume of hexone it is possible to extract 83 percent of the uranium while only 0.3 percent of the thorium is extracted. other experiments show that even greater separations are possible. In the second section of this report the use of antipyrine in solvent extraction procedures is discussed. Experiments are described in which 90 percent of the uranium is extracted while the thorium is extracted to the order of 3 to 5 percent.
Date:
February 16, 1945
Creator:
Reas, W. H.
Object Type:
Report
System:
The UNT Digital Library
A Rapid Method for Determination of Water in TO₃
Summary: A set of conditions is described for a ten minute determination of water in TO₃ by ignition and absorption of the evolved water in magnesium perchlorate. Complete conversion to T₃O₃ is obtained under these conditions, so that total loss on ignition and total T (plus non-volatile impurity) content may also be obtained. It has been found unnecessary to employ Cu foil to prevent interference by nitrates, which may be present with a nitrate/water ratio as high as 5, and in an amount that does not exceed 100 mg.
Date:
February 16, 1945
Creator:
Barash, Bernard B.; Lee, Franklin B. & Curtiss, Edgar O.
Object Type:
Report
System:
The UNT Digital Library
A Spectrophotometric Determination of Mixtures of Hexavalent and Tetravalent Tuballoy : Preliminary Report
Report outlining a study that tested the use of colorimetric methods with high concentration phosphoric acid as a solvent for rapid analysis of mixtures of T^+4 and T^+6.
Date:
February 17, 1945
Creator:
Andrews, L. J.; Schaap, Ward B. & Gates, J. W., Jr.
Object Type:
Report
System:
The UNT Digital Library
Quantitative Recovery of Tuballoy From Tuballoy Tetrafluoride
Report discussing various procedures for recovering tuballoy from tuballoy tetrafluoride, also called "green salt." Results from trial runs of each procedure are presented.
Date:
February 22, 1945
Creator:
Gates, J. W., Jr.; Andrews, L. J. & Schaap, Ward B.
Object Type:
Report
System:
The UNT Digital Library
Chemical Research -- Extraction and Properties of U233; Report for the Period Ending December 15, 1944
Technical report containing short articles on (1) Determination of physical constants for U233; (2) Determination of decay chain of U233; (3) Extraction of U233; (4) Extracting solvents for uranium; (5) Factors affecting the extraction uranium and thorium by organic solvents, especially ether; and (6) Analysis of ore samples for protoactinium.
Date:
February 24, 1945
Creator:
Seaborg, Glenn T. (Glenn Theodore), 1912-1999; Manning, F. M. & Katzin, L. I.
Object Type:
Report
System:
The UNT Digital Library
Recovery of Tuballoy From Solutions Containing Fluoride Ion
"Another extraction method is described herein for the quantitative recovery of tuballoy from solutions containing high concentrations of fluoride ion. The method consists of the addition of aluminum nitrate to the solution in order to complex the fluoride ion, followed by saturation with calcium nitrate and extraction of the tuballoy with dibutyl carbitol.
Date:
February 27, 1945
Creator:
Smith, Fred; Tober, Frank W., 1919-1995; Lord, E. J.; Andrews, L. J. & Gates, J. W., Jr.
Object Type:
Report
System:
The UNT Digital Library
Comparative Effectiveness and Additivity of Fission Neutrons Gamma Rays and Beta Rays of Drosphila Eggs
From abstract: "Some investigations have been made to ascertain the similarity of the mechanism of action of radiation which are different in their specific ionization. A suggested approach was to determine if the energies absorbed from the different types of radiation are additive in their lethal effects on biological objects. In an attempt to determine the additivity of ionizing radiation various dose combinations of fast neutrons, gamma rays and beta rays were administered to Drosophila eggs. These test objects were chosen because their dimensions are such that they tend to absorb these three radiations uniformly throughout their volume. Although the three radiations were found to vary in their biological effectiveness, per unit energy absorbed, all three were shown to be completely additive in their lethal effect on these organisms."
Date:
February 1946
Creator:
Stapleton, G. E. & Zirkle, Raymond E. (Raymond Elliot), 1902-1988
Object Type:
Report
System:
The UNT Digital Library
The Determination of Tuballoy in the Presence of Thorium in Peroxide Effluents and Cakes
Abstract: "A polarographic method for the determination of tuballoy in thorium peroxide cakes in all sold medium was found to give satisfactory results. Fluorescent analyses on effluents containing thorium gave good results if the thorium content was kept below 1 mg/liter."
Date:
February 1, 1946
Creator:
Lasko, Wiliam. R. & Susano, C. D.
Object Type:
Report
System:
The UNT Digital Library
The Methods of Preparing Anhydrous Tuballoy Tetrachloride
Abstract: "A survey report of the known production and experimental methods for the preparation of anhydrous tuballoy tetrachloride with references of each method."
Date:
February 1946
Creator:
Wagner, E. L.
Object Type:
Report
System:
The UNT Digital Library
Report on the Abajo Mountains district, Green River Desert area, Utah
Report with Supporting maps and calculation tables on the Abajo Mountains District, Geen River Desert Area, Utah.
Date:
February 1946
Creator:
Smyth, Sam K.
Object Type:
Report
System:
The UNT Digital Library
Report on the Blanding District San Juan Basin Area, Utah
A report with corollary maps and calculation tables on the Blanding District.
Date:
February 1946
Creator:
Smyth, Sam K.
Object Type:
Report
System:
The UNT Digital Library
Separation of Tuballoy From Tantalum by Chlorination Distillation Process
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.
Object Type:
Report
System:
The UNT Digital Library
The Preservation of Fluorescence Standards
Report discussing the practice of using methyl methacrylate as a coating for platinium dishes in fluorescence method of uranium analysis. The experimental procedure described in this report to evaluate this practice indicates that the sample would be sufficiently protected from contamination and would not need to be stored in a desiccator.
Date:
February 15, 1946
Creator:
Grotta, H. M.
Object Type:
Report
System:
The UNT Digital Library
Optimum Conditions for the "Hot Zone" Volatilization of TClâ‚„
Abstract: "The data reported herein furnish a qualitative comparison of the rapidity of vaporization of TCl4 at various "hot zone" temperatures as well as a measure of the chlorine evolution attributed to its thermal decomposition. The presence of impurities in the TCl4 detracts from the significance of the reported chlorine evolution. The temperature recommended for rapid volatilization is 750 C at which TCl4 underwent thermal decomposition amounting to no more than 0.2% by weight."
Date:
February 19, 1946
Creator:
Crompton, C. E.; Calkins, V. P. & Larson, C. E.
Object Type:
Report
System:
The UNT Digital Library
The Coprecipitation of Thorium and Uranium Peroxides
From introduction: This report is concerned primarily with the coprecipitation phenomenon and its application to plant problems.
Date:
February 20, 1946
Creator:
Grieger, P. F. & Larson, C. E.
Object Type:
Report
System:
The UNT Digital Library