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The Unstable Species and the Isotope Effect in the Pyrolysis of Diborane in a Shock Tube

Description: From American Chemical Society 145th National Meeting, New York, Sept. 1963. The pyrolysis of diborane was examined using a chemical shock tube as a reactor. Additional evidence for the existence of hexaborane-12 and heptaborane- 11 and -13 was obtained. The presence of a large net normal isotope effect in the formation of tetraborane and hexaborane and a net inverse isotope effect in the formation of pentaborane-9 are observed. A mechanism, consisting of a series of competitive reactions and e… more
Date: January 1, 1963
Creator: Fehlher, T P & Koski, W S
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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MOUND LABORATORY PROGRESS REPORT FOR JUNE 1963

Description: 3 8 ; 9 4 5 7 5 C 9 E ; < : 7over a 1456-day period. The half life was calculated to be 12.355 plus or minus 0.0l0 years, based on measurements in three calorimeters. The yields of /sup 208/Po and /sup 209/Po from the irradiation of multicurie quantities of /sup 210/Po were calculated. Production of small quantities of /sup 208/Po and /sup 209/Po is possible by the (n,xn) reaction; however, large quantities of /sup 210/Po would be present in the /sup 208/Po--/sup 209/Po sample. On the basis of … more
Date: June 28, 1963
Creator: Eichelberger, J.F.; Grove, G.R. & Jones, L.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Some Radiochemical and Physical Measurements of Debris From an Underground Nuclear Detonation

Description: Fallout samples were collected from 2600 feet to 19,000 feet from ground zero in order to determine the mass per unit area, gamma activity per unit area, particle size distribution, and specific activity versus particle size of the fallout; to determine the gamma decay rate and spectra of the samples; to perform leaching and exchange studies on the radioactive debris; to measure the release of gaseous fission product iodine; and to determine the radiochemical composition of the fallout particul… more
Date: June 1, 1963
Creator: Lane, W. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Out-of-Pile Properties of Mixed Uranium-Plutonium Carbides. Final Report

Description: Fabrication studies to produce high density solid solutions of 80% UC-- 20% PuC, with reproducible structure, composition, and density, were completed. Solid solution (U,Pu)C powder was produced by the oxide-carbon reaction, and the powders were consolidated by cold pressing and sintering. The studies were a continuation of work performed on Contract AT(30-1)-2899 with the USAEC. Two types of material were produced: 1. (U/sub 0.8/Pu/sub 0.2/)C/sub 0.95/, single,phase monocarbide pellets with av… more
Date: December 1, 1963
Creator: Stahl, D.; Strasser, A.; Taylor, K. & Anderson, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Beam Extraction From the MURA 50 Mev FFAG Accelerator

Description: The components, operation, and performance of the beam extraction system are described, and the selection and proporties of particle orbits in the extraction channel are discussed. Single accelerated beam pulses were observed to last 37 nsec, and 40 mamp per pulse currents were measured in the extracted beam. The 45-Mev stacked beam was also extracted in a single turn from the 50- Mev electron accelerator. (D.C.W.)
Date: August 1, 1963
Creator: Mills, F. E.; Lee, G. M.; Meier, H. K.; Meara, J. E.; Pruett, C. H.; Rowe, E. M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Status Report No. 4 on Clinch River Study

Description: The status of radioactive contamination of the Clinch and Tennessee River systems from Nov. 1961 to April 1962 is reviewed. Data are included from studies on the fate of radioactive materials discharged to the Clinch River by the Oak Ridge National Laboratory, the mechanisms of dispersion of radionuclides released to the river, the direct and indirect hazards of waste disposal practices during the period, an evaluation of the over-all usefulness of this river for radioactive disposal purposes, … more
Date: September 25, 1963
Creator: Morton, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion Characteristics of the Rare Earth and Yttrium Metals

Description: The corrosion of rare earth metals in air, water, and aqueous solutions at different temperatures was measured by conventional weight-loss and weight- gain tests. The metals oxidize slowly in air, corrode slowly in water and alkaline solutions, and are readily soluble in most acids. Correlations of corrosion behavior with the electronic and physical properties of the rare earths are discussed. (auth)
Date: October 31, 1963
Creator: Lee, L. & Greene, N. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Determination of Corrections to the Neutron Activation of Gold Foils Exposed in Water

Description: The corrections required to deduce unperturbed neutron fluxes from measurements with foil absorbers were determined experimentally for the case of gold foils exposed in a light-water medium. The results are in good agreement with the theoretical predictions of Dalton and Osborn and of Ritchie and Eldridge. (auth)
Date: April 1, 1963
Creator: Zobel, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THE PRESENT EXPERIMENTAL AND THEORETICAL STATUS OF THE PROBLEM OF ELECTRON EJECTION IN THE ALPHA DECAY OF Po$sup 21$$sup 0$

Description: The experimental measurements of electron ejection in Po/sup 210/ decay are discussed, and the theory of the process is outlined. The order-of-magnitude discrepancy between theory and experiment that was evident a decade ago has not yet been definitively resolved. The discrepancy is ascribed to an inadequacy of the theory, in particular to the use of an asymptotic expansion in that theory. Brief mention is made of some very recent unpublished calculations by G. W. Schaefer in which a reasonable… more
Date: January 1, 1963
Creator: Rubinson, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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INVESTIGATIONS OF CARBIDES AS CATHODES FOR THERMIONIC SPACE REACTORS. Quarterly Progress Report for the Period Ending May 31, 1963

Description: Two long-term test cells were fabricated and tested. One was loaded with a 30 UC--70 ZrC sample and the other with a 90 UC--10 ZrC samrple. The rates of vaporization of these samaples in vacuum were determined both in the absence and in the presence of a Ni anode maintained at 983 deg K with an electrode spacirig of 20 mils, hr order to set the baseline values. Measurement of the rates of vaporization of these samples under these conditions in the presence of Cs vapor at a pressure of about 1.8… more
Date: September 25, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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COSMOTRON CURRENT MARKER

Description: Modifications consisted of redesigning the feedback loop and shielding the toroid to minimize capacitive pickup and of insulating the core from the magnet buss. A system analysis is presented, and system controls and operation are described. Operational properties of the redesigned loop and tests on the insulation between the grounded Faraday shield and the magnet buss and core are discussed. (D.C.W.)
Date: June 19, 1963
Creator: Kovarik, V.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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SNAP Radioisotope Space Programs. Quarterly Progress Report No. 8, Task 7, July 1 Through September 30, 1961

Description: Activities in a program devoted to the safety evaluation of isotopic power systems in space applications are reported. In the study of upper atmosphere re-entry, flare and telemetry test capsules were completed for scheduled re-entry tests. The altitude of re-entry burn-through for all phase I and II test capsules and nose cone-vehicle-pod relative position data were determined. These data were used in determining the optimum positions and headings for the optical and optical-telemetry aircraft… more
Date: October 31, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electronuclear Division Annual Progress Report for Period Ending December 31, 1962

Description: Heavy-ion reactions in the low-Z region were investigated with 27-Mev nitrogen ions from the 73-inch Cyclotron and with 30-Mev oxygen ions from the Tandem Van de Graaff. Experiments included studies of angular distributions and excitation functions for transfer reactions, compound-nucleus reactions, effects of angular momentum on the density of nuclear states, and so-called Ericson fluctuations in the compound nucleus Si/sup 28/. Nuclear reactions induced with 22-Mev protons in the 86-Inch Cycl… more
Date: May 24, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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REACTOR PHYSICS CONSTANTS

Description: This second edition is based on data available on March 15, 1961. Sections on constants necessary for the interpretation of experimental data and on digital computer programs for reactor design and reactor physics have been added. 1344 references. (D.C.W.)
Date: July 1, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NOTES OF THE DEPOSITION OF FALLOUT IN RELATION TO TOPOGRAPHY AND LOCAL METEOROLOGICAL CONDITIONS

Description: Activities in a program to collect radioactive effluents released during the test operation of a Kiwi reactor (Kiwi B-la) on December 7, 1961, are reported. Granular fallout collectors and cheesecloth aerosol collectors were prelocated along roads approximating arcs of 5, 16, and 37 miles from the reactor test cell at the Nevada Test Site. Each of these arcs crossed successively lower and wider parts of a gently sloping valley. A last-minute shift in wind direction carried the effluent cloud aw… more
Date: June 1, 1963
Creator: Martin, W.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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INVESTIGATION OF VAPOR VOLUME FRACTION AND SLIP VELOCITY UNDER THE EURATOM PROGRAM. Quarterly Progress Report, April 15, 1963-June 30, 1963

Description: Vapor volume fraction (void fraction) experiments using a gamma attenuation technique were planned. The experimental program required designing a test section and a steam generator. While the design of the test section was straightforward, the steam generator required considerably more attention because of the large flow and power requirements. Both designs were completed. All components of the gamma attenuation detection system were assembled and checked to be sure they were in proper operatin… more
Date: July 10, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Resonance Integrals and Self-Shielding Factors for Detector Foils

Description: &gt;Effective activation resonance integrals for thin and thick foils in an isotropic neutron flux were measured by a cadmium ratio method. Gold was used as a standard. Values obtained for dilute resonance integrals in barns, not including 1/v capture, were: Au/sup 197/, 1390 plus or minus 40 (Reference); U/ sup 238/ capture, 280 plus or minus 10; Cu/sup 63/, 3.17 plus or minus 0.18; Cu/sup 65/, 1.39 plus or minus 0.22; Mo/sup 98/, 9.9 plus or minus 1.1; Mo/sup 100/, 4.06 plus or minus 0.23; W/… more
Date: January 1, 1963
Creator: Baumann, N. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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