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Zirconium Diboride, Boron Nitride, And Boron Carbide Compatibility with Austenitic Stainless Steel

Description: The compatibility of zirconium diboride, boron carbide, and boron nitride with type 304 stainless steel was evaluated as a function of temperature (1000-1200°C), time (1-3 hr). Appropriate loadings of the boron compounds and stainless steel powder were blended and fashioned into a compact powder metallurgically. Each compact was roll clad into a plate and subsequently heat treated at a temperature equal to the initial sintering temperature. Metallographic examination of the fabricated and heat-… more
Date: July 31, 1959
Creator: Cherubini, Julian H. & Leitten, C. F., Jr.
Partner: UNT Libraries Government Documents Department
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Quarterly Report of the Solution Corrosion Group for the Period Ending July 31, 1957

Description: The second all-titanium loop, 100A Loop N, was placed in operation during the past quarter and has operated satisfactorily for more than 400 hr with uranyl sulfate solution at 250°C and approximately 100 psi.. Loop I has been modified to provide better control of the oxygen concentration in the circulation solution in order to study the effect on corrosion of various oxygen concentrations under dynamic conditions. A fourth test of the mockup of Zircaloy-2 - stainless steel transition joint used… more
Date: July 31, 1957
Creator: Griess, J. C.; Savage, H. C.; English, J. L.; Greeley, R. S.; Ulrich, W. C.; Buxton, S. R. et al.
Partner: UNT Libraries Government Documents Department
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A Calculation of the Gamma-Ray Spectrum of the Bulk Shielding Reactor

Description: A calculation was performed to determine the high energy portion of the gamma-ray flux at the surface of the uranium-aluminum BSF reactor. The flux was considered to consist entirely of the un-collided flux plus the Compton scattered flux. The four sources of primary gamma rays included in the calculation were prompt fission gamma rays, capture gamma rays from aluminum, capture gamma rays from uranium, and fission-product decay gamma rays. These sources were divided into four energy groups. Alt… more
Date: July 31, 1957
Creator: deSaussure, Gerard
Partner: UNT Libraries Government Documents Department
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Electronic Devices for Nuclear Physics: Quarterly Report No. 16

Description: Work on new photocathodes and on analysis of cathode materials by chemical and x-ray diffraction methods was continued.
Date: July 31, 1954
Creator: Anderson, R. H.; Greenblatt, M. H. & Sommer, A. H.
Partner: UNT Libraries Government Documents Department
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A Proposal For Reducing Impurities in a Stabilized Pinched Discharge

Description: It is proposed to reduce the initial wall hangup and consequent plasma contamination of a stabilized pinched discharge by reducing the Bz pressure difference across the current sheath to nearly zero at early times. Two methods for accomplishing this are proposed, both involving multistage programming of the Bz system.
Date: July 31, 1957
Creator: Lovberg, Ralph H. (Ralph Harvey)
Partner: UNT Libraries Government Documents Department
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Technical Discussion of Brookhaven Off-Site Personnel Monitoring Service

Description: A number of questions have arisen in regard to the interpretation of personnel monitoring results reported to users of the Brookhaven neutron monitoring service. The original announcement was rather brief and did not contain most of the technical characteristics upon which an evaluation of results must be based. The following paragraphs have been composed with the hope that they will clarify the meaning of the exposure reports.
Date: July 31, 1953
Creator: Cowan, F. P.
Partner: UNT Libraries Government Documents Department
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PRTR Total Energy Distribution Calculations

Description: Since the calculation of the PRTR energy distribution was first carried out by J. R. Triplett, the design has become sufficiently fixed to allow a refinement of his values. The present analysis, also, includes a calculation of the fraction of energy which is released in the shroud and process tubers that flows to the primary coolant to the top and bottom shield coolant is taken into consideration. Nuclear data used in the original calculations still appears satisfactory and is, therefore, util… more
Date: July 31, 1959
Creator: Peterson, R. E.
Partner: UNT Libraries Government Documents Department
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Strength Properties of Joint Designs for Joining Tubes to Tube Sheets

Description: This report describes the results of a study to determine the mechanical properties of joining stainless steel tubes to stainless steel tube sheets and evaluating the joint types made by various combinations of rolling and welding.
Date: July 31, 1953
Creator: General Electric Company
Partner: UNT Libraries Government Documents Department
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Final Report on Purification of Thorium Nitrate by Solvent Extraction With Tributyl Phosphate: 1. Laboratory Investigations

Description: Report discussing laboratory investigations of thorium nitrate purification. Batch equilibrium data, solubility data, viscosity data, density data, and the results seven batch countercurrent extraction tests and two selective stripping tests are included.
Date: July 31, 1952
Creator: Ewing, R. A.; Fishel, J. B.; Kiehl, S. J., Jr.; Sharpe, R. E. & Bearse, A. E.
Partner: UNT Libraries Government Documents Department
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Final Report on Purification of Thorium Nitrate by Solvent Extraction With Tributyl Phosphate: 2. Mixer-Settler Pilot Plant Investigations

Description: From abstract: "This report describes the construction and operation of a mixer-settler pilot plant for the purification of mantle-grade thorium nitrate. The liquid-liquid extraction process utilized 30% tributyl phosphate - 70% 'Solvesso-100' as the organic solvent and nitric acid as the salting agent. Continuous steady-state operation of the equipment was demonstrated, with very good recovery of thorium."
Date: July 31, 1952
Creator: Burkhart, C. A.; Foley, D. D.; Retzke, F. A.; Filbert, Robert B., Jr. & Clegg, John W.
Partner: UNT Libraries Government Documents Department
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Beryllia and Beryllia-Beryllium Bodies for Moderating Cores in Fuel Elements

Description: From introduction: This report presents the results of the two phases of the work: study of the compatibility of beryllia bodies with a coating material, molybdenum; and studies of beryllia-beryllium body fabrication.
Date: July 31, 1952
Creator: Long, R. E.; Duckworth, W. H.; Saller, Henry A.; Stacy, J. T.; Miller, R. A. & Schofield, H. Z.
Partner: UNT Libraries Government Documents Department
open access

The Hard-Core Pinch. I

Description: This report analyzes a linear, hard-core pinch tube built to examine tubes afflicted by small-scale instabilities evident from many observations.
Date: July 31, 1959
Creator: Birdsall, D. H.; Colgate, Stirling A. & Furth, Harold P.
Partner: UNT Libraries Government Documents Department
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The Hard-Core Pinch. II

Description: This report describes a toroidal version of the hard-core pinch and the additional information it can obtain to what the analogous linear pinch can get.
Date: July 31, 1959
Creator: Birdsall, D. H.; Colgate, Stirling A. & Furth, Harold P.
Partner: UNT Libraries Government Documents Department
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Effect of Plasma Oscillations on the Table-Top Model

Description: The following report describe the effect of plasma oscillations using a table-top model and the probable magnitude of the quantities needed to reach complete ionization.
Date: July 31, 1952
Creator: Spitzer, Lyman, Jr.
Partner: UNT Libraries Government Documents Department
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Procedures for Uranium Spectrography

Description: Report discussing a method for uranium spectography. The analytical procedures are described in detail, as well as the restocking and maintenance procedures that are associated with the method.
Date: July 31, 1952
Creator: McIlhenny, R. C.
Partner: UNT Libraries Government Documents Department
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Buildup and Decay Factors for Members of the U-232 Decay Chain

Description: Activity ratios for the important members of the U/sup 232/ chain are presented in tabular form. These ratios are presented for initially pure U/sup 232/, initially pure Th/sup 228/ and initially pure Ra/sup 224/.- (auth)
Date: July 31, 1958
Creator: Arnold, E.D.
Partner: UNT Libraries Government Documents Department
open access

A CALCULATION OF THE GAMMA-RAY SPECTRUM OF THE BULK SHIELDING REACTOR

Description: A calculation was performed to determine the highenergy portion of the gamma-ray flux at the surfacc of the uranium-aluminum BSF reactor. The flux was considered to consist entirely of the uncollided flux plus the Comptonscattered flux. The four sources of primary gamma rays included in the calculation were prompt fission gamma rays, capture gamma rays from aluminum, capture gamma rays from uranium, and fission-product decay gamma rays. These sources were divided into four energy groups. Althou… more
Date: July 31, 1957
Creator: deSaussure, G.
Partner: UNT Libraries Government Documents Department
open access

Inhalation Toxicity of Zirconium Compounds. I. Short-Term Studies

Description: A total of 270 animals of 5 species was exposed by inhalation to compounds of zirconium for 6 hours per day, 5 days per week. One group of animals was exposed to ZrO{sub 2} at an atmospheric concentration of 75 mg. Zr/m{sup 3} for 30 days; another, to 11 mg. Zr/m{sup 3} for 60 days. A third group was exposed to a mist of ZrCl{sub 4} at a level of 6 mg. Zr/m{sup 3} for 60 days. Zirconium oxide produced no significant changes in mortality, growth rate, blood nonprotein nitrogen or fibrinogen, uri… more
Date: July 31, 1956
Creator: Spiegl, C. J.; Calkins, M. C.; DeVoldre, J. J.; Scott, J. K.; Steadman, L. T. & Stokinger, H. E.
Partner: UNT Libraries Government Documents Department
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Ultra High Flux Research Reactors

Description: Verbatim transcriptions of nine seminars on ultra high flux research reactors are revised and collected here. The seminars included: production of transuranic elements, isotope production using high fluxes, high fluxes for neutron diffraction experiments and velocity selector experiments, solid state physics and the materials for high flux reactors, physics of flux-trap and other ultra high flux reactors, and design considerations of aqueous flux-trap reactors. (T.R.H.)
Date: July 31, 1958
Creator: Lane, J. A.
Partner: UNT Libraries Government Documents Department
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