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Heat Transfer Characteristics of Graphite Plates with Hydrogen Coolant

Description: "This note presents the results of a parametric study of heat-generating graphite plates with hydrogen coolant flowing through constant area passages. The heat generation within the graphite was assumed to have a distribution that allowed the centerline temperature of the plates to remain constant at 5000 F. The parametric variables were the mass flow rate per unit area, plate thickness, plate length, and passage hydraulic diameter. The machine calculations were coded by Ivan Cherry, T-1."
Date: October 19, 1955
Creator: Bussard, R. W. & Durham, F. P.
Partner: UNT Libraries Government Documents Department

Tables of Neutron Cross Sections

Description: Report presenting data tables which summarize neutron cross sections for elements from hydrogen to bismuth. This data was to be available on September 1, 1947. Purpose and acknowledgements are given as well as criteria for omitting measurements and explanation of the material.
Date: October 28, 1947
Creator: Way, Katharine & Haines, G.
Partner: UNT Libraries Government Documents Department

The Hematological Effects of Ionizing Radiations

Description: This report follows the hematological studies conducted on the Plutonium Project. The studies focus on the internal and external effects of plutonium radiation on biological features, applying these effects toward the protection of individuals who worked in the Project, and using the findings generally for the protection of the public which was potentially in danger of exposure to these physical hazards.
Date: October 1947
Creator: Jacobson, Leon O.; Marks, Edna K. & Lorenz, Egon
Partner: UNT Libraries Government Documents Department

Fabrication of Uranium Wire

Description: From abstract: "The present report describes experimental work performed to establish a procedure for the production of uranium metal wire. In all cases, the size of the initial rod was 1/2 inch diameter. Three materials were used: hot extruded tuballoy rod, high purity cast tuballoy rod, and cast U-235 rod."
Date: October 25, 1949
Creator: Anderson, R. E.; Taub, J. M. & Doll, D. T.
Partner: UNT Libraries Government Documents Department

Direct Current Electromagnetic Pumps

Description: Abstract: "A number of direct current conduction type electromagnetic pumps for liquid metals were constructed. Pumping capacities of over 400 gpm and efficiencies of over 50 percent were obtained. NaK alloy at temperatures up to 400 C was used in the test. The large currents required were obtained from rectifiers or from a homopolar generator constructed for the purpose."
Date: October 25, 1949
Creator: Barnes, A. H.; Smith, F. A. & Whitham, G. K.
Partner: UNT Libraries Government Documents Department

Radiation of Pu²⁴³

Description: "The radiations of Pu²⁴³ were studied with beta and gamma scintillation spectrometers alone and in coincidence. An incomplete disintegration scheme is deduced which leads to a total beta disintegration energy of 560 kev. A half-life of 4.98 ± 0.02 hours was observed."
Date: October 1952
Creator: Engelkemeir, D. W.; Fields, Paul R. & Huizenga, John R.
Partner: UNT Libraries Government Documents Department

On Certain Phase Equilibria in the Ternary System Uranyl Nitrate--Ether--Water at 25° and at 1°C

Description: This report follows a study that deals with a portion of the ternary diagram previously analyzed, namely the boundary curves which separate the central area of two coexistent liquid phases from the two border stripe representing one-phase liquid systems.
Date: October 22, 1942
Creator: Van Name, Ralph Gibbs
Partner: UNT Libraries Government Documents Department

Ozonosphere Observations from Propagation of Atomic Blast Waves

Description: Abstract: "Observations of refracted sound waves from atomic tests at the Nevada and Pacific Proving Grounds are evaluated to show temperature and winds in the ozonosphere. A simplified method of making these interpretations is presented to reduce the computation work load normally associated with atmospheric sound studies."
Date: October 1, 1954
Creator: Reed, Jack W.
Partner: UNT Libraries Government Documents Department

Recovery of Uranium From Wet Process Phosphoric Acid: Final Report

Description: From abstract: "The state of reduction of wet process phosphoric acid determines largely the extractability of its uranium content. This report defines the economic relationships involved over a wide range of reduction of the acid. Reductant consumption, penalties and capital investment as well as solvent consumption are evaluated."
Date: October 1954
Creator: Quinn, Patrick J.
Partner: UNT Libraries Government Documents Department

Simple Critical Mass Calculations

Description: Abstract: "This report gives (1) a simple empirical equation which should yield critical mass values of homogeneous, partially moderated, unreflected spherical assemblies with an accuracy of a factor two, and (2) critical mass estimates obtained from from (1) for Oy-C-H and Oy-W-CH2 systems."
Date: October 1955
Creator: Hansen, Gordon Edward
Partner: UNT Libraries Government Documents Department

Some Aspects of Reactor Theory

Description: Report that outlines the major issue of reactor theory and asymptotic reactor theory. Uncommon reactor theory results are also discussed and unanswered questions regarding reactor theory are presented by the author.
Date: October 10, 1952
Creator: Weinberg, Alvin Martin
Partner: UNT Libraries Government Documents Department

Total Cross Sections of Tritium, Hydrogen, and Helium for Fast Neutrons

Description: Abstract: "By using gaseous samples in neutron transmission experiments the total cross section of tritium has been measured over the energy region from 0.3 to 7.0 Mev and at the following additional energies: 14.1, 18.0, 19.1, and 20.0 Mev. A plot of cross section versus neutron energy shows a broad maximum with the greatest value of 2.5 barns at 3.7 Mev. Cross sections for helium were measured in the energy region from 1 to 3 Mev and for both hydrogen and helium at 14.1 Mev."
Date: October 1952
Creator: Coon, J. H.; Bondelid, R. O. & Phillips, D. D.
Partner: UNT Libraries Government Documents Department

Solvent Extraction Concentration of Certain Rare Earths in Yttrium

Description: Abstract: A procedure is given for the concentration of gadolinium, dysprosium, and samarium in yttrium oxide by extraction of the thiocyanates with tributyl phosphate. Concentration of these elements up to 80-fold was obtained. Results are given on the effects of ammonium thiocynate and tributyl phosphate concentrations, as well as pH, temperature and sample size on the separation. Analyses of standard yttrium oxide samples after concentration of these rare earths are in good agreement with results obtained by direct spectrographic analyses.
Date: October 1957
Creator: Eberle, Allan R. & Lerner, M. W.
Partner: UNT Libraries Government Documents Department

Equations Used for Calculation of Data by the Feedback Method

Description: The following report studies a method of assay where an unknown sample is determined by comparison with a standard sample of known isotopic ratio. The purpose is to acquaint the technical personnel with the fundamentals of the feedback method of assaying samples of TF6.
Date: October 26, 1945
Creator: Happ, G. P. & Cameron, A. E.
Partner: UNT Libraries Government Documents Department

Heat of Reaction of Chlorine Trifluoride with Water

Description: Abstract: "A measurement of the heat liberated when chlorine trifluoride reacts with water has been made in a simple Dewar calorimeter. The chlorine trifluoride vapor was bubbled into approximately 20 moles of water; the weight of material used, heat equivalent of the calorimeter, and the temperature rise of the water and calorimeter were determined. From these data an average value for the heat of reaction was calculated to be 81.0 +/- 0.4 kcal/mole. Analysis of the reaction solution and evolved gas showed the following to be present: hydrogen fluoride, hydrogen chloride, chlorine, oxygen, and probably oxygen-chlorine compounds."
Date: October 24, 1950
Creator: Oliver, G. D. & Grisard, J. W.
Partner: UNT Libraries Government Documents Department

Progress Report on Carnotite Studies; Carbonate Processes: September 1949

Description: This is a progress report on the carbonate process, compiled by the chemical development department of the Carbide and Carbon Chemicals Corporation's Y-12 plant, covering the month of September, 1949. In the previous month, the problem of immediate interest to the Monticello operation were listed. Projects that were left incomplete during that time were continued during this month, as well as a brief investigation of the process in which raw ore is leached with sodium carbonate, the sands and slime separated, the sands leached with acid, and the slimes roasted in a pellitized form.
Date: October 6, 1949
Creator: Brown, K. B. & Coleman, C. F.
Partner: UNT Libraries Government Documents Department

Results of Experiment 1: FCE Calibration With BORAX Core

Description: Summary: The justification of using polyethylene whose hydrogen density of 0.132 gm/cm³ with a distributed void of 15.9 percent as a mockup of water at 70°F and having a hydrogen density of 0.111 gm/cm³ was tested in the FCE. A mockup close to the BORAX core was built and its critical mass determined. Corrections were calculated for differences in the hydrogen desnity and self shielding of the fuel. The effective FCE critical mass agreed with that of the BORAX core to within one percent.
Date: October 1, 1956
Creator: Starr, E. & Toops, Edward Chassell
Partner: UNT Libraries Government Documents Department

Safety Tests on Hand Stacking of U-235 Cubes

Description: From abstract: "Critical assembly tests have been made on the Pajarito Universal Machine to determine the safety limits of handstacking cubes of 95% U-235 in spherical geometries preparatory to making critical assemblies of U-235 in an "infinite" tuballoy tamper. The U-235 cubes were stacked as pseudospheres in a cavity at the top of a tuballoy block 12" high and 8" on a side, and the assembly tamped by locating it inside a doughnut shaped water tank whose tamping effect is equivalent to the tamping caused by personnel necessary for hand stacking."
Date: October 11, 1948
Creator: Josephson, V.; Young, D. S. & Dike, R. S.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

A Method for the Determination of Traces of Metals: [Part] 1. Outline of the Method

Description: Updated report about work that originated in February 1942 for the purpose of determining minor amounts of cadmium in uranium and related materials. A method was developed over a long series of studies made following the original report for determining small amounts of various materials in uranium and in a variety of other materials.
Date: October 1947
Creator: Bricker, Clark E.; Furman, N. Howell & McDuffie, Bruce
Partner: UNT Libraries Government Documents Department

A Method for the Determination of Traces of Metals III : Studies of the Distillation of Amalgams

Description: Summary: "It has been demonstrated that the electrolysis-distillation stages of the procedure that has been developed for traces of metals may be utilized, with certain precautions, to recover milligram quantities of cadmium, cobalt, copper, iron, nickel and zinc. Lead remains partially as undissolved lead sulfate and hence the recovery of amounts ranging from 1 - 5 mg. is not advisable by this procedure."
Date: October 1947
Creator: Bricker, Clark E.; Furman, N. Howell & McDuffie, Bruce
Partner: UNT Libraries Government Documents Department