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5-gpm In-Pile Thorium Oxide Slurry Loop Development, Runs 14 Through 16 In Loop L-4-248, And Filtration Of Thorium Oxide Slurry With Sintered Filters

Description: In in-pile pump loop capable of circulating thorium oxide slurry while exposed to nuclear radiation in an experimental reactor beam hole is necessary to obtain information on the effect of reactor radiation on the physical and chemical properties of the slurry and on the corrosion-erosion of containment materials. Thorium oxide filtration test results with various sintered-metal filters and one aluminum oxide filter are reported.
Date: March 7, 1960
Creator: Baker, J. M.; Jones, D. T. & Savage, H. C.
Item Type: Refine your search to only Report
open access

Acid Formation in the Radiolysis of Phosphorus Esters

Description: The radiolytic decomposition of tributyl phosphate has been show by burr to product gases, acids, and polymers. the acids that are formed can limit the usefulness of tributyl phosphate for the processing of radioactive materials. The study of acid formation on radiolysis therefor becomes important to us for the understanding of the mechanism of acid formation, the influence of added materials and the effect of the structure of organo- phosphorous compounds. Samples of purified esters have been … more
Date: April 3, 1957
Creator: Baldwin, W. H.
Item Type: Refine your search to only Report
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The Alkaline Method for Treatment of High Radiation Level Aluminum Wastes

Description: The method is based on caustic precipitation and centrifugation (which removes the Cs and small amounts of Sr, rare earths, Zr, Nb, and Ru). These are removed in the supernatant and run through a cation exchange column. This separates Zr-NB and Ru. The effluent is precipitated and the Zr-Nb is stored in an asphalt pit. The Ru then may be recovered from the precipitate. The precipitate from the original centrifugation is calcined, pressed and transported to a deep well.
Date: January 17, 1957
Creator: Higgins, I. R.
Item Type: Refine your search to only Report
open access

Analysis of HRT Behavior

Description: This report, published for distribution by the Oak Ridge National Laboratory, outlines the methods being used in attempts to establish a mechanism which will account for the fluctuations observed in the power trace of the HRT.
Date: March 13, 1961
Creator: Kasten, Paul R. & Tobias, Melvin L.
Item Type: Refine your search to only Report
open access

Anisotropic Elastic Scattering of Neutrons

Description: In an elastic collision the neutron loses part of its kinetic energy to the nucleus with both the kinetic and momentum of the system being conserved. However, for many elements the scattering is not isotropic in the center-of-mass system at the higher neutron energies. Many of the present reactor multigroup codes include anisotropic scattering at the high neutron energies, while many others assume isotropic scattering at all energies. In order to consider some of the effects of including anisot… more
Date: March 21, 1957
Creator: Copenhaver, C. M.
Item Type: Refine your search to only Report
open access

Apparent Copper Rate Constants Determined In In-Pile Loop Experiment L-2-22

Description: The results of radiolytic gas pressure measurements in the pressurizer of in-pile loop experiment L-2-22 were used to calculate the copper rate constants in the several different test solutions. Values for the copper concentration obtained from solution analyses were combined with the solution rate constants to determine the apparent molar rate constant for each solution at 280'C.
Date: March 23, 1960
Creator: Jenks, G. H. (Glenn Herbert), 1916- & Baker, J. E.
Item Type: Refine your search to only Report
open access

The Applicability of Packed Glass Raschig Rings For Nuclear Safety In Large Vessels

Description: Simple calculations indicate that large diameter vessels packed with boron-containing glass raschig rings are applicable for storage of high concentration solutions of fissile material. Use of this means for storage of fissile solutions can result in appreciable savings. Advantages and disadvantages are discussed and tests are enumerated that must be made to confirm the applicability of glass raschig rings as a fixed poison.
Date: March 24, 1960
Creator: Nichols, J. P.
Item Type: Refine your search to only Report
open access

Application of Xylenol Orange Indicator in the Complexometric Titration of Thorium

Description: A method for the determination of thorium by direct titration with ethylenediamenetetraacedic acid (EDTA), using xylenol orange as the indicator, is described. The effect of using various amounts of an acetate or a glycine buffer was investigated, as well as the effect of interfering ions.
Date: September 9, 1959
Creator: Menis, Oscar, 1913-1979
Item Type: Refine your search to only Report
open access

Applied Health Physics Semi-Annual Report : July 1956 - December 1956

Description: This semi-annual report of the Applied Health Physics Section of the Health Physics Division provides both narrative and quantitative descriptions of area air monitoring activities, fallout activity, rain water analyses, Clinch River and White Oak Creek analyses, background radiation monitoring, and monitoring of the work and protective garments laundry. Measurements for gamma and beta activity are reported in millicuries/cubic centimeter. The report does not provide information on specific rad… more
Date: 1957
Creator: Oak Ridge National Laboratory. Health Physics Division
Item Type: Refine your search to only Report
open access

APPR-1 Type Absorber Rod Irradiation Test -- Irradiation Request ORNL MTR-29

Description: In order to evaluate the behavior of an APPR type absorber rod, an irradiation test program has been established. Approximately 21 more samples are planned for testing under this request. The request proposes testing a full size APPR-1 type control rod in the MTR. The objective of the test is to better evaluate the neutron absorbing material proposed for the APPR-1 control rod.
Date: January 4, 1957
Creator: Gross, E. E. & Schaffter, L. D.
Item Type: Refine your search to only Report
open access

An Attempt to Duplicate a Direct Spectrophotometric Method for Thorium Proposed by Gurupada Bannerjee

Description: An attempt was made to apply a method developed by G. Bannerjee to the colorimetric determination of thorium. In this method, 2-p-sulfophenylazo-1, 8-dihydroxynaphthalane-3, 6-disulfonic acid (SPAINS) is used as the chromogenic reagent. Thus far, Bannerjee's results have not been reproduced in this work.
Date: August 13, 1959
Creator: Holsopple, H. L.
Item Type: Refine your search to only Report
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