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Impregnation of Beryllium Oxide with Uranium

Description: The purpose of this report is to present a method of impregnating beryllium oxide with uranium and to describe the properties of beryllium oxide and of commercial beryllium oxide ceramics.
Date: August 20, 1947
Creator: Sanz, M. C. & Randolph, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Separation of Beryllium from Fission Products in a Nitrate Medium - Preliminary Experiments Using Solvent Extraction

Description: Preliminary experiments using acetylacetone in the presence of ethylenediaminetetraacetic acid to separate major quantities of beryllium from fission products are reported. Using 2M beryllium solutions, decontamination factors of the order of 10/sup 3/ were obtained with trace quantities of the more important fission products. This is sufficiently encouraging for the work to be repeated at higher activity levels.
Date: March 1963
Creator: Aggett, J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photodisintegration Cross Section of Beryllium Near Threshold

Description: Abstract. The cross section of photoneutron production in Be9 at energies of 1.692, 1.720, and 1.78 Mev has been investigated using radioisotope gamma-ray sources. Neutron counting was by manganous sulfate bathe and a long counter. Gamma-ray counting was by a scintillation spectrometer consisting of a NaI(T1) scintillation crystal and a 256 channel pulse-height analyzer. A theoretical treatment of the P [right arrow] S transition near threshold using square-well potentials is also presented.
Date: May 12, 1960
Creator: Prosser, John M. & John, Walter, Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Use of a Paraffin Based Grout to Stabilize Buried Beryllium and Other Wastes

Description: The long term durability of WAXFIXi, a paraffin based grout, was evaluated for in situ grouting of activated beryllium wastes in the Subsurface Disposal Area (SDA), a radioactive landfill at the Radioactive Waste Management Complex, part of the Idaho National Laboratory (INL). The evaluation considered radiological and biological mechanisms that could degrade the grout using data from an extensive literature search and previous tests of in situ grouting at the INL. Conservative radioactive dose… more
Date: December 1, 2005
Creator: Matthern, Gretchen; Hanson, Duane; Yancey, Neal & Knudson, Darrell
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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THE FAST MULTIPLICATION EFFECT OF BERYLLIUM OXIDE IN REACTORS

Description: The net multiplication effect of beryllium oxide, which is due to the (n,2n) reaction, was calculated using an essentially exact calculation of the neutron spectrum as a function of energy. The upper limit of the (n,2n) cross section curve gives the unpoisoned value epsilon /sup +/ = 1.047 and the lower limit gives epsilon /sup -/ = 1,027. The behavior of the Li/sup 6/poisoned fast multiplication effect as a function of the number of collisions was studied for both beryllium and beryllium oxide… more
Date: December 14, 1959
Creator: Hafele, W. & Tsagaris, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of High-Fired Beryllium Oxide Digestion Methods to Measure Beryllium in Industrial Hygiene Samples by Inductively Coupled Plasma-Atomic Emission Spectroscopy

Description: Several digestion methods were tested to determine their effectiveness on high-fired BeO (ceramic BeO that has been heated to a temperature of approximately 1450 degrees C). High fired BeO is an extremely insoluble, refractory compound that may be present at some DOE sites. Because of the toxicity of air-borne BeO particulates, detection and measurement of high-fired BeO is required. Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES) is a sensitive technique for measuring Be. How… more
Date: November 1, 2004
Creator: Charles, Coleman
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparison of BEO Versus Graphite as a Moderator for MGCR

Description: The comparison is made on the basis of nuclear requirements, properties, cost, and performance under irradiation. Results of published work were reviewed on the effects of irradiation on beryllium oxide and beryllium oxide - uranium dioxide dispersions. A research proposal for a Maritime Gas-cooled Reaotor Moderator is included. (J.R.D.)
Date: September 11, 1959
Creator: Wallace, W. P. & Simnad, M. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Self-Diffusion of Beryllium in Unirradiated, Cold-Pressed and Sintered Beryllium Oxide

Description: Diffusion of beryllium-7 through polycrystalline unirradiated specimens of BeO was studied as a preliminary step to a study of diffusion in irradiated material. Beryllium-7 was deposited on one end of cylindrical specimens by exchange and adsorption from aqueous solution. The depth of penetration perpendicular to the surfaces of deposition was determined after annealing the specimens at pre-determined conditions. A simple lapping device of high precision was developed to determine penetration d… more
Date: January 29, 1964
Creator: de Bruin, H. J. & Watson, G. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Measurement of Beryllium in Biological Samples by Accelerator Mass Spectrometry: Applications for Studying Chronic Beryllium Disease

Description: A method using accelerator mass spectrometry (AMS) has been developed for quantifying attomoles of beryllium (Be) in biological samples. This method provides the sensitivity to trace Be in biological samples at very low doses with the purpose of identifying the molecular targets involved in chronic beryllium disease. Proof of the method was tested by administering 0.001, 0.05, 0.5 and 5.0 {micro}g {sup 9}Be and {sup 10}Be by intraperitoneal injection to male mice and removing spleen, liver, fem… more
Date: April 15, 2004
Creator: Chiarappa-Zucca, M. L.; Finkel, R. C.; Martinelli, R. E.; McAninch, J. E.; Nelson, D. O. & Turtletaub, K. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Heat Treatment and Machinability of Beryllium Rod

Description: Purpose: "The purpose of this investigation was to determine whether or not the machinability of extruded beryllium rod could be improved by appropriate heat treatment. It was thought that this could be accomplished in the extruded Be rod by recrystallization without further growth of these grains. This should impart a certain degree of ductility to the metal. The investigations was divided into two parts: Part I - Heat Treatment of Beryllium Rod; Part II - Machinability of Beryllium Rod."
Date: February 19, 1946
Creator: Norhaft, P. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some properties of beryllium oxide and beryllium oxide - columbium ceramals

Description: High-temperature tensile and thermal-shock investigations were conducted on beryllium oxide and beryllium oxide plus columbium metal additions. X-ray diffraction and metallographic results are given. The tensile strength of 6150 pounds per square inch for beryllium oxide at 1800 degrees F compared favorably with the zirconia bodies previously tested. Additions of 2, 5, 8, 10, 12, and 15 percent by weight of columbium metal failed to improve the shock resistance over that of pure beryllium oxide. more
Date: March 2, 1951
Creator: Robards, C. F. & Gangler, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Impact of HFIR LEU Conversion on Beryllium Reflector Degradation Factors

Description: An assessment of the impact of low enriched uranium (LEU) conversion on the factors that may cause the degradation of the beryllium reflector is performed for the High Flux Isotope Reactor (HFIR). The computational methods, models, and tools, comparisons with previous work, along with the results obtained are documented and discussed in this report. The report documents the results for the gas and neutronic poison production, and the heating in the beryllium reflector for both the highly enrich… more
Date: October 1, 2013
Creator: Ilas, Dan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Extrusion of Beryllium

Description: Abstract: "A method for the extrusion of beryllium into rods and tubing has been developed. The operation is carried out between 1500 and 1900 F and the billet is clad in a layer of soft iron to prevent contact between it and the die steals. Extruded beryllium has much more strength and ductility than cast metal due to the crystal refinement which occurs as a result of the fabrication operation."
Date: 1950
Creator: Creutz, Edward Chester, {}
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cross Section for the Formation of Be⁷ from Oxygen Irradiated with High Energy Deuterons

Description: Abstract: "The cross section for the formation of Be⁷ from oxygen irradiated with high energy deuterons has been determined. The values are 4.5 millibarns at 100 Mev, 5.6 millibarns at 150 Mev, and 5.5 millibarns at 190 Mev."
Date: September 1953
Creator: Batzel, Roger Elwood & Coleman, G. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Apparatus for Differential Thermal Analysis and its Use in the Investigation of Some Beryllium Compounds

Description: An apparatus for differential thermal analysis of active or toxic materials is described. The technique is superior to thermogravimetric analysis. Analysis of the dehydration of beryllium sulphate shows that the process takes place in three stages. Some applications are given for a modified apparatus for quantitative work.
Date: 1962
Creator: O'Connor, D. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of the Stability Constants of Salicylato-Beryllium Complexes by a Distribution Method

Description: An investigation of the solvent extraction behavior of salicylato- beryllium complexes is reported. A simplified method for calculating the stability constants has been developed. The values obtained are beta /sub 1/ = 4.0 x 10/sup 12/ and beta /sub 2/ = 4 3 x 10/sup 22/ in 0.15 M sodium perchlorate. (auth)
Date: November 1, 1961
Creator: Szego, L. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phase Diagrams of Zirconium-Beryllium and Related Systems

Description: Introduction. The phase diagram data reported in this paper were obtained during an investigation of the beryllium-metal compounds of the titanium group transition elements. Several compounds in these systems had been previously reported but their compositions and structures were not all known. In the course of this study many details of the phase diagrams of the system were observed. Tentative diagrams consistent with this data will be presented.
Date: May 31, 1960
Creator: Bedford, Ray Gilbert, 1928-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Reducibility of Beryllium Oxide

Description: Earlier articles by the author demonstrate that beryllium oxide can be reduced in other ways than previously known. Using a combination of alkaline earth metals, temperature or pressure, the reduction of bellyillium oxide achieves reduction.
Date: unknown
Creator: Krell, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Reprocessing of Homogeneous Beryllium-Base Reactor Fuel : a Suggested Scheme for the Selective Aqueous Dissolution of the Matrix

Description: The matrix of a dilute homogeneous H.T.G.C. reactor fuel employing metallic beryllium as a moderator can be selectively dissolved by a caustic soda solution containing salicylate ion. At least 99 percent of the uranium and thorium can be recovered as insoluble solids, but in the case of irradiated material the uranium loss might be higher. Some decontamination of the resulting beryllium solution from fission products and Pa233 can also be obtained. A tentative chemical flowsheet is proposed on … more
Date: August 1962
Creator: Farrell, M. S. & Temple, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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