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Radioactive Manganese Occurrences in the Lower Rio Itapicurú Valley, Bahia, Brazil

Description: From abstract: Radioactive manganese deposits have been found in two swamps and at one locality on the northeast bank of the Rio Itapicuru near Mosquete, municipio of Itapicuru, State of Bahia, Brazil. The occurrences are related to warm springs and consist of surficial manganiferous sinter and of sandstone impregnated with manganese.
Date: April 1958
Creator: Haynes, Donald D.; Mau, Henry & White, Max Gregg
Partner: UNT Libraries Government Documents Department
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Preliminary Analysis of a Nuclear Powered Supersonic Airplane Using Ramjet Engines

Description: Report discussing performance estimates for several airplanes using General Electric AC-210 ramjet nuclear-powered engines. Assumptions used for designing the engines, radiation shield, and airframe are described. Potential tradeoffs in regards to power and weight reduction are also discussed.
Date: April 11, 1958
Creator: Weber, Richard J. & Connolley, Donald J.
Partner: UNT Libraries Government Documents Department
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Analyses and correlations of HAPO rupture experience with natural uranium material

Description: One of the major factors restricting reactor power levels is the incidence of ruptured slugs. The primary purpose in studying ruptures is to determine how reactor operating variables affect rupture rates. With this knowledge reactor operating conditions may be adjusted or controlled in the manner that will optimize reactor production. In addition, knowledge of rupture rate relationships are useful in fuel element development and in overall economic studies of existing and proposed reactors and … more
Date: April 23, 1958
Creator: Bloomstrand, R.R. & Neef, W.I.
Partner: UNT Libraries Government Documents Department
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Examination of an enriched I and E fuel element failure (RM-218)

Description: An enriched I & E fuel element failed during irradiation under Production Test IP-109-AC in December, 1957. Radiometallurgical examination of this slug was requested by the IPD Process Analysis Operation. This report presents the results of the examination work.
Date: April 11, 1958
Creator: Zimmerman, D. L.
Partner: UNT Libraries Government Documents Department
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Chemical Processing Department Monthly Report: March 1958

Description: This report details activities of the Chemical Processing Department during the month of March 1958.
Date: April 21, 1958
Creator: Hanford Atomic Products Operation. Chemical Processing Department.
Partner: UNT Libraries Government Documents Department
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Airborne Reconnaissance Project, Ruby Range and Sweetwater Basin, Montana

Description: Abstract: A low-level airborne radioactivity survey of parts of Beaverhead and Madison Counties in southwestern Montana was undertaken from June 6 to October 14, 1955. Flying centered around the Ruby Range-Sweetwater Basin area and concentrated on the Precambrian metamorphic complex and Tertiary lake-bed sediments. No commercial uranium deposits were discovered, and no extensions were found of the few known small occurrences. Five areas of high background detected through the survey were invest… more
Date: April 1958
Creator: Pruitt, Robert G., Jr. & Magleby, Dan N.
Partner: UNT Libraries Government Documents Department
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Development test authorization IP-154-AL sulfuric acid study

Description: The test detailed in this report is a part of a program seeking ways to reduce the amount of radioactivity in reactor effluent water. Arsenic-76 is a major contributor to the gastrointestinal, radiation dose received by downstream users of river water. Phosphorus-32 is the principal radioisotope in the flesh of whitefish caught in the vicinity of the Hanford reservation. Recent activation analyses of the commercial grade sulfuric acid used in process water treatment have indicated that this aci… more
Date: April 4, 1958
Creator: Hall, R. B. & Conley, W. R.
Partner: UNT Libraries Government Documents Department
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Transient Thermal Stresses in Pressure Vessels - Part II: Thermal Stress Calculation

Description: This report describes the second part of an IBM 704 Computer Code to determine transient thermal stress in pressure vessels. This part computes stresses from temperature distribution determined by the first part. A brief account is given of the solution of axially symmetric thermal stresses, using harmonic stress functions. This is followed by a description of the Code and complete input and operating instructions for a number of problems: a. Transient temperature distribution due to sudden cha… more
Date: April 30, 1958
Partner: UNT Libraries Government Documents Department
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PAR Loop Schedule Review

Description: The schedule for the installation of the PAR slurry loop experiment in the South Facility of the ORR has been reviewed and revised. The design, fabrications and Installation is approximately two weeks behind schedule at this time due to many factors; however, indications are that this time can be made up. Design is estimated to be 75% complete, fabrication 32% complete and installation 12% complete.
Date: April 30, 1958
Creator: Schaffer, Jr. & W.F.
Partner: UNT Libraries Government Documents Department
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Blending UNH streams of different uranium enrichments

Description: The cost and feasibility of blending UNH streams of different uranium enrichments at HAPO was evaluated on a preliminary basis. Cases studied were blending 37.5% enriched UNH with depleted E metal UNH to yield a 0.947% enriched end product, and blending depleted E metal UNH with the depleted natural uranium to yield 0.7115% enriched end product. A reasonable degree of feasibility is indicated for such a blend program at HAPO.
Date: April 18, 1958
Creator: Campbell, B. F.
Partner: UNT Libraries Government Documents Department
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Production Test IP-85-A -- Water shut-off during shutdown at C Reactor

Description: This document discusses the standards and testing relating to the allowable water shutoff times for reactor tubes and crossheaders are based on theoretical calculations. The resulting limits are believed to be quite conservative and to restrict operations unduly in many instances. They are restrictive because of the conductivity and resistance data on which they are based. It is the purpose of the test to obtain the experimental data necessary to determine new water shut-off curves for the reac… more
Date: April 24, 1958
Creator: Jones, S. S. & Moore, D. L.
Partner: UNT Libraries Government Documents Department
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Engineering Geology Bearing on Harbor Site Selection Along the Northwest Coast of Alaska from Nome to Point Barrow

Description: From abstract: This report describes geologic and oceanographic factors relevant to the selection of a site in northwestern Alaska, at which an experimental harbor can be created by the explosion of a nuclear device. Part I describes the results of a preliminary survey of the entire coastal and offshore region between Nome and Point Barrow: Part II consists of a more detailed evaluation of the Cape Thompson-Cape Seppings area; and Part III is a theoretical consideration of the effect of the oce… more
Date: April 1958
Creator: Péwé, Troy Lewis; Hopkins, David Moody & Lachenbruch, Arthur H.
Partner: UNT Libraries Government Documents Department
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Reactor Technology Quarterly Report

Description: Introduction: The experimental work reported here was undertaken as a part of the over-all design and development program for a nuclear reactor pressure vessel.
Date: April 1958
Partner: UNT Libraries Government Documents Department
open access

Curves for Estimating Low Blast Over-Pressure

Description: A plot of overpressure versus distance is presented for the fractional psi pressure level. The plot provides a rapid and simple means of estimating the permissible yield at any distance from settled areas.
Date: April 1958
Creator: Vortman, Luke J.
Partner: UNT Libraries Government Documents Department
open access

Antinucleons

Description: The idea of ''antiparticles'', as is well known, originated with Dirac, who in establishing the relativistic equations for the electron noted that besides the solutions corresponding to ordinary electrons there were also ''unwanted solutions'' corresponding to particles of electronic mass but of charge +e instead of the electronic charge - e. The discovery of the positron by CD Anderson offered a brilliant experimental confirmation of Dirac's prediction and gave the first example of an ''antipa… more
Date: April 1, 1958
Creator: Segre, Emilio
Partner: UNT Libraries Government Documents Department
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The System Zirconium-Iron-Tin. Status Report No. 4 for July 1, 1957- March 31, 1958

Description: A study of the solubility limits of iron and tin in alpha zirconium at temperatares below 500 deg C is in progress. Dilute alloys were prepared by arc- melting using the highest purity materials. Heat treatment of the alloys involves homogenizntion at 800 deg C followed by severe cold work prior to extended anneals at temperatures between 200 and 500 deg C in 50-degree intervals. Metallographic examination of annealed and quenched structures is the primary mode of investigation. Some magnetic s… more
Date: April 24, 1958
Creator: Tanner, L. E.
Partner: UNT Libraries Government Documents Department
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RATES OF CORROSION PRODUCT REMOVAL FROM CIRCULATING SYSTEM BY FILM FORMATION AND SETTLING

Description: Iron oxide deposits removed from high pressure system of HRT after the first power run will be annlyzed for Fe/sup 59/ in an attempt to determine the time these deposits were circulated prior to deposition (settling or film formation). Deposits available are film from corrosion specimens (stainless steel, zirconium and titanium) and settled particles. (auth)
Date: April 24, 1958
Creator: Suddath, J.C.
Partner: UNT Libraries Government Documents Department
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RESIN ATTRITION

Description: ABS>Uranium metal is produced by the bomb reduction of UF/sub 4/ with Mg. The slag from this reduction contains appreciable quantities of U, either in the metallic or the tetrafluoride form, in addition to the MgF/sub 2/. A process for recovering low enrichmeat U from this slag has gone into operation. A study of the causes of resin attrition and their relative magnitude both from an over-all point of view and with specific reference to the Higgins' Column and Dowex 21K resin is preseated. Equi… more
Date: April 1, 1958
Creator: Seiler, G. R.; Ammann, P. R. & Newey, A. B.
Partner: UNT Libraries Government Documents Department
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TECHNICAL PROGRESS REPORT. PART I. HIGHSPEED COMPUTER PROGRAM. PART II. MATHEMATICAL METHODS. PART III. SWITCHING THEORY. PART IV. ILLIAC USE AND OPERATION-GENERAL LABORATORY INFORMATION

Description: Investigations of transistor circuits, other circuits, and related equipment for the high-speed computer program are reported. Mathematical methods for hydrodynamic flow problems and an iterative method for linear equations are discussed. Switching theory studies are reported, and the operation and use of ILLIAC in April are summarized. (For preceding period see AECU-3756.) (T.R.H.)
Date: April 1, 1958
Partner: UNT Libraries Government Documents Department
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Some Causes and Remedies for Undesirable Variability of Relay Performance Characteristics

Description: Presented at the Sixth National Conference on Electromagnetic Relays, School of Electrical Engineering Oklahoma State Univ., Stillwater, Okla. Apr. 1958. A discussion is presented of some causes and remedies for undesirable variability of relay performance characteristics within individual relays, and between relays within a lot, and from lot to lot. Discussed are test results, methods of determining the causes for instability (including the replica technique for studying contact contamination)… more
Date: April 1, 1958
Creator: Grear, J. W., Jr.
Partner: UNT Libraries Government Documents Department
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