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U.S. Geological Survey Trace Elements and Related Reports through 1954

Description: From introduction: "Part I is a numerical list of U.S. Geological Survey Trace Elements Investigations and Memorandum reports... Part II is a reference guide to Trace Elements and related reports that are available to the public... Part III is a finding list of states, areas, and subjects... Part IV is an author index."
Date: January 1955
Creator: Smith, Harriet B. & Blatcher, Virginia K.
Partner: UNT Libraries Government Documents Department
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Techniques Used For The Production And Identification Of The Transplutonium Elements

Description: The last fifteen years have seen the discovery of ten transuranic elements. This paper (presented at the Mendeleev Chemistry Conference in Moscow) deals only with the transplutonium elements, i.e., those elements with atomic number greater than 94. This will be a detailed discussion of the techniques that have been devised for producing and identifying elements 101 and 102 and the possible applications of these methods to elements beyond. There will also be a brief review of the discovery of al… more
Date: March 1959
Creator: Ghiorso, Albert, 1915-2010
Partner: UNT Libraries Government Documents Department
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An Ion Exchange Study of Possible Hybridized 5f Bonding in the Actinides

Description: A study was conducted on the elution behavior of curium (III), americium (III), plutonium (III), actinium (III), plutonium (IV), neptunium (IV), uranium (IV), thorium (IV), neptunium (V), plutonium (VI), uranium (VI), lanthanum (III), cerium (III), europium (III), ytterbium (III), ytterium (III), strontium (II), barium (II), radium (II), cesium (I) with 3.2 M, 6.2 M, and 12.2 M HCI solutions from Dower-50 cation exchange resin columns. These elutions show that in high concentrations of hydroch… more
Date: August 28, 1951
Creator: Diamond, R. M.; Street, K., Jr. & Seaborg, Glenn T. (Glenn Theodore), 1912-1999
Partner: UNT Libraries Government Documents Department
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Recent Research On Transplutonium Elements

Description: It is the purpose of this paper (from a talk given at Mendeleev Chemistry Conference in Moscow) to give a brief progress report on work which is being done on very heavy elements at the Lawrence Radiation Laboratory in Berkeley. The subject matter is divided into three broad classifications. The first classification includes production of the isotopes, the second deals with investigations of their chemical properties and the third includes studies of the nuclear properties.
Date: March 1959
Creator: Thompson, Stanley G.
Partner: UNT Libraries Government Documents Department
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Safety Analysis Report for Packaging (SARP) of the Oak Ridge National Laboratory TRU Californium Shipping Container

Description: An analytical evaluation of the Oak Ridge National Laboratory TRU Californium Shipping Container was made in order to demonstrate its compliance with the regulations governing off-site shipment of packages that contain radioactive material. The evaluation encompassed five primary categories: structural integrity, thermal resistance, radiation shielding, nuclear criticality safety, and quality assurance. The results of this evaluation demonstrate that the container complies with the applicable r… more
Date: January 1, 1980
Creator: Box, W. D.; Shappert, L. B.; Seagren, R. D.; Klima, B. B.; Jurgensen, M. C.; Hammond, C. R. et al.
Partner: UNT Libraries Government Documents Department
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REACTIVITY OF SUBSTITUTION ELEMENTS

Description: A method is sought for predicting reactivity differences between fuel elements attached to control absorbers and fixed fuel elements. The approach described is based on a logic that is approximate, and which should be subjected to experimental check. (auth)
Date: January 19, 1959
Creator: Murray, R.L.
Partner: UNT Libraries Government Documents Department

Yungang Cave Number 6, Fantastic Animal Head with Antlers

Description: An animal head with antlers graces the top of a column which appears to support a lintel. The creature looks simultaneously human and animal with large eyes and a pierced nose. Four-pronged antlers emerge from the top of the head that is covered with green hair-like detail.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: [0470..0494]
Partner: UNT College of Visual Arts + Design
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History of the Origin of the Chemical Elements and Their Discoveries

Description: The origin of the chemical elements show a wide diversity with some of these elements having their origin in antiquity. Still other elements have been synthesized within the past fifty years via nuclear reactions on heavy elements, because these other elements are unstable and radioactive and do not exist in nature. The names of the elements come from many sources including mythological concepts or characters; places, areas or countries; properties of the element or its compounds, such as color… more
Date: June 29, 2001
Creator: Holden, N. E.
Partner: UNT Libraries Government Documents Department
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Recent studies of nuclear and chemical properties of elements 103, 104 and 105

Description: Information obtained since 1983 on the nuclear and chemical properties of element 103, the last on the actinide series, and elements 104 and 105, at the beginning of the transactinide series, is reviewed. Their chemical properties are compared with their lanthanide and lighter group 4 and 5 homologs and evidence for possible relativistic effects is discussed. The current knowledge of the nuclear properties of these elements and how these affect of the study of chemical properties is discussed. … more
Date: August 1, 1990
Creator: Hoffman, D.C. (California Univ., Berkeley, CA (USA). Dept. of Chemistry Lawrence Berkeley Lab., CA (USA))
Partner: UNT Libraries Government Documents Department
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Elastic Thermal Stress in Reactor Fuel Elements -- a Comparative Study of Various Shapes

Description: A method for comparison and evaluation of thermoelastic stresses is given for a range of fuel element shapes based on parameters available from the initial study of a reactor system. The shapes studied, in descending order of stress level are circular rods, concentric tubes, flat plates, and a matrix of circular holes.
Date: August 1962
Creator: Binns, Ian M.
Partner: UNT Libraries Government Documents Department
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Summary Hazards Report on Enriched Fuel Element Loading for the BNL Research Reactor

Description: Report issued by the Brookhaven National Laboratory discussing a hazards report on replacing the research center's current fuel elements with new highly enriched elements. As stated in the introduction, "this report is a summary of the studies, both theoretical and experimental, which have been made so far of the nuclear properties of the "new" pile, of the stability of the new fuel elements, and of the safety and practicability of operation of the "new" pile" (p. 2). This report includes table… more
Date: May 24, 1956
Creator: Corngold, N.; Kaplan, I.; Chernick, J.; Gurinsky, D. H. & Fowell, R. W.
Partner: UNT Libraries Government Documents Department
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Frontiers of chemistry for americium and curium

Description: The discoveries of americium and curium were made only after Seaborg had formulated his actinide concept in order to design the chemistry needed to separate them from irradiated /sup 239/Pu targets. Their discoveries thus furnished the first clear-cut evidence that the series exists and justified Seaborg's bold assumption that even though Th and Pa appeared to presage a following 6d series, the pattern established by the periodic table after Cs and Ba would be repeated exactly after Fr and Ra. … more
Date: January 1, 1984
Creator: Keller, O.L. Jr.
Partner: UNT Libraries Government Documents Department
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A Continuous Fission Product Separation Process; I. Removal of the Rare Earths (Lanthanum Cerium, Praseodymium, and Neodymium) From a Typical Liquid Bismuth-Uranium Reactor Fuel by Contact with Fused LiCl-KCl Mixtures

Description: Technical report investigating the distribution of rare earth elements between a liquid bismuth-uranium solution and fused KCI-LiCi mixtures. Report warrants further research on the liquid bismuth-uranium-fused salt system due to the benefit of continuous fission removal processes.
Date: July 1, 1951
Creator: Bareis, D. W.
Partner: UNT Libraries Government Documents Department
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Testing of Fuel Element Parts and Assemblies by the Radiographic Method

Description: Concurrently with the production of canned uranium slugs for pile operation there arises the problem of nondestructive testing so that no slug which may fail structurally during operation be placed in the pile. The ultimate goal of any such testing program is to devise nondestructive testing methods which will eliminate defective slugs. A secondary goal of the testing program is to learn as much as possible about the construction of the canned slug so that the mechanisms of failure can be under… more
Date: July 1, 1954
Creator: VanderLaan, Robert H.
Partner: UNT Libraries Government Documents Department
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A Report on Some Attempts to Cast Centrifugally Fuel Elements of Small Diameter

Description: Report issued by the Argonne national Laboratory discussing centrifugal casting of thin uranium plates. The applicability of the centrifugal casting technique to the production of multiple castings of fuel pins of small diameter and of thin fuel plates was investigated. This report includes tables, illustrations, and photographs.
Date: March 1961
Creator: Yaggee, F. L.
Partner: UNT Libraries Government Documents Department
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Spectrochemical determination of tantalum in plutonium metal using direct current plasma emission spectrometry

Description: Tantalum is determined by direct current plasma spectrometry after separation of plutonium from solution as PuF/sub 3/. After centrifugation of the PuF/sub 3/ precipitate, a low level of plutonium remains in solution in sufficient quantity to cause spectral interferences. It is necessary to determine the plutonium by dc plasma spectrometry and apply a correction to determine low tantalum concentrations with good accuracy and precision. Tantalum can be determined down to 0.4 ppM in solution with… more
Date: December 1, 1983
Creator: Fadeff, S.K. & Morris, W.F.
Partner: UNT Libraries Government Documents Department
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