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A 23-Group Neutron Thermalization Cross Section Library

Description: A set of 23-group neutron cross sections for use in the calculation of neutron thermalization and thermal neutron spectral effects in SNAP reactors is compiled. The sources and methods used to obtain the cross sections are described. (auth)
Date: July 15, 1963
Creator: Doctor, R. D. & Boling, M. A.
Partner: UNT Libraries Government Documents Department
open access

Activation of electrical machinery. Supplement 1. [Preliminary evaluation; not applicable to ground tests]

Description: The following analysis of the induced radioactivity in SNAP-50/SPUR electrical machinery having a high cobalt content is submitted. Induced radioactivity in the flight vehicle will contribute negligibly to allowable radiation levels. This is especially so due to the low neutron to gamma ratio of assumed radiation damage tolerances to semiconductors. A calculation to estimate the order of magnitude of induced radioactivity in cobalt is attached. The calculation is based on a best guess of the ne… more
Date: November 15, 1963
Creator: Smolen, J.R.
Partner: UNT Libraries Government Documents Department
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BEAM TRANSPORT CALCULATIONS USING GRAPHS

Description: The spread of a beam of particles can be represented by an ellipse in phase space, which represents the spread of the beam in both angle and distance. It is shown that the changes in this ellipse can be followed simply by graphical means, as the beam passes through an optical system consisting of thick and thin lenses and drift spaces. Such calculations are of value when an injected beam must be matched to an accelerator, or when a beam of particles from an accelerator must be transported to an… more
Date: January 15, 1963
Creator: Smith, W I.B.
Partner: UNT Libraries Government Documents Department
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Ceramic-to-Metal Seals for High-Temperature Thermionic Converters. Quarterly Technical Report No. 2

Description: Seals capable of long life at 1500 c- C in cesium and vacuum environments are developed. Improved methods of sealing both metallized and unmetallized ceramic members to refractory metals are developed. Associated work on ceramics, refractory metal alloys, and ceramic-metal composites is made. (auth)
Date: April 15, 1963
Partner: UNT Libraries Government Documents Department
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CHARACTERISTICS OF A THERMIONIC CONVERTER WITH A HIGH-TEMPERATURE COLLECTOR

Description: Current-voltage characteristics of a cesium-on-tantalum thermionic converter with a collector temperature comparable to that of the emitter were obtained for a variety of electrode temperatures and cesium vapor pressures. The results show that for emitter temperatures in excess of 2000 deg K, power outputs of a few watts per square centimeter can be obtained when the ratio of collector temperature to emitter temperature is as high as 0.75 to 0.80, which is the required range for best performanc… more
Date: January 15, 1963
Creator: Blue, E. & Ingold, J. H.
Partner: UNT Libraries Government Documents Department
open access

COMPUTER DATA PROCESSING SYSTEM. PROJECT ROVER, 1962

Description: ABS>A system was created for processing large volumes of data from Project ROVER tests at the Nevada Test Site. The data are compiled as analog, frequency modulated tape, which is translated in a Packard-Bell Tape-to-Tape converter into a binary coded decimal (BCD) IBM 7090 computer input tape. This input tape, tape A5, is processed on the 7090 by the RDH-D FORTRAN-II code and its 20 FAP and FORTRAN subroutines. Outputs from the 7090 run are tapes A3, which is a BCD tape used for listing on the… more
Date: January 15, 1963
Creator: Narin, F.
Partner: UNT Libraries Government Documents Department
open access

Control Drum Actuator Checker

Description: The Control Drum Actuator Checker is used to verify the operation of the hydraulic control drum actuators before they are installed on the reactor. It provides for local checkout after installation. It provides for local checkout after installation. It also provides for pre-installation hydraulic leak and pneumatic seal test on individual actuator assemblies.
Date: November 15, 1963
Partner: UNT Libraries Government Documents Department
open access

Correlation of Liquid Fraction in Two-Phase Flow With Application to Liquid Metals

Description: A generalized correlation for the liquid fraction in twophase flow is presented which is proposed for use with all iluids, including liquid metals. The correlation is based on isothermal, two-phase, two-component liquid fraction data for liquid Hg--N/sub 2/ and water-air. Liquid fraction is shown to be a function of the Martinelli flow modulus and liquid/gas density and viscosity ratios. Good correspondence is indicated between the liquid fraction predicted by this correlation and the Martinell… more
Date: April 15, 1963
Creator: Baroczy, C. J.
Partner: UNT Libraries Government Documents Department
open access

Development of salt velocity technique

Description: The salt velocity technique for measuring coolant flow through a SNAP 8 tri-cusp channel was studied and developed. The parameters important in obtaining reproducible data were investigated and a test procedure, which yields dath of good precision, was developed. Dath were taken on a tri-cusp channel with flush circular electrodes (0.125 inch O.D.) as well as on a tri-cusp channel with parallel plate electrodes (0.006 inches thick, 0.250 inches long), which were situated 0.050 inches apart and … more
Date: November 15, 1963
Creator: Daleas, R. S.
Partner: UNT Libraries Government Documents Department
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THE DEVELOPMENT OF URANIUM CARBIDE AS A NUCLEAR FUEL. Third Annual Report, September 1, 1961 to October 31, 1962

Description: = 9 6 < ? < 0 t and fabrication method on irradiation stability, thermal conductivity, and hot hardness of uranium carbide were determined. Hypostoichiometric and stoichiometric uranium carbides prepared by both powder metallurgy and skull casting and hyperstoichiometric cast carbide were tested. The preparation of 12% enriched uranium carbide specimens for irradiation testing was completed. Sintered specimens were 98% of theoretical density for hypostoichiometric uranium carbide and 92 to 93% … more
Date: January 15, 1963
Creator: Crane, J.; Kalish, H. S. & Litton, F. B.
Partner: UNT Libraries Government Documents Department
open access

A DISCUSSION AND BIBLIOGRAPHY OF CURRENT LITERATURE CONCERNING VAN ALLEN BELTS FOR USE IN SNAP SPACE ENVIRONMENTAL STUDIES

Description: Discussion of theories on particle motion in electric and magnetic fields precedes examination of theories on the source of the inner and outer Van Allen belts. Theories for the inner belt propose solar cosmic ray injection and galactic cosmic ray injection as the source of the protons. Neutron albedo is particularly examined but seems to be unaccountable for the proton belt. Neutron albedo and injection from the sun are also considered as possible sources of the electrons in the outer belt. Fl… more
Date: February 15, 1963
Creator: Kistler, V. E.
Partner: UNT Libraries Government Documents Department
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Dynamic Void Fraction Measurement System

Description: Various methods and techniques of measuring void fraction in boiling heat transfer media are discussed. Details of 17 void-fraction measurement systems are abstracted. A dynamic void-fraction measurement system is described, capable of continuously measuring void fraction at any position along a 12-ft test section. Void fraction (the ratio of vapor volume to total volume of a 2- phase mixture) is measured in boiling organic coolant contained by a test section of 5/8-in.-OD nickel tube with 0.04… more
Date: May 15, 1963
Creator: Kendron, J. H.; Stoner, E. E. & Taylor, G. M.
Partner: UNT Libraries Government Documents Department
open access

Effect of Alloying Constituents on Aluminum Dissolution Rates

Description: In studies of the effect of alloying elements on the rate of dissolution of Al in mercury-catalyzed nitric acid, it was observed that Co, Ni, and Si present at concentrations of 1 to 2% have significant passivating effects. Fe was slightly catalytic. Passivation due to Si was partly overcome by contacting the passive alloy with active, high-purity Al. Increased catalyst concentration improved the rates when Ni and Si were present. Neither approach was effective when Cu was the passivating eleme… more
Date: April 15, 1963
Creator: Fletcher, R. D.; Jacobson, M. E. & Beard, H. R.
Partner: UNT Libraries Government Documents Department
open access

Etr Flux Measurements for Cycles 51b and 54

Description: The thermal-neutron fluxes in the lattice positions and selected experimental positions of the ETR were measured for Cycle 51B. Gamma heat generation was also measured in various experimental positions for Cycles 51B and 54. Vertical traverses for each position monitored are shown. (auth)
Date: July 15, 1963
Creator: Weber, L. D. & Hogg, C. H.
Partner: UNT Libraries Government Documents Department
open access

FCX element load test

Description: No Description Available.
Date: August 15, 1963
Creator: Zibritosky, G. & Lancaster, R.
Partner: UNT Libraries Government Documents Department
open access

Grain Growth of UO$sub 2$. Part I

Description: No Description Available.
Date: August 15, 1963
Creator: Hausner, H.
Partner: UNT Libraries Government Documents Department
open access

Hanford Laboratories monthly activities report, April, 1963

Description: This is the monthly report for the Hanford Laboratories Operation, April, 1963. Reactor fuels, chemistry, dosimetry, separation processes, reactor technology financial activities, biology operation, physics and instrumentation research, employee relations, applied mathematics operation, programming, and radiation protection operation discussed.
Date: May 15, 1963
Partner: UNT Libraries Government Documents Department
open access

Hanford Laboratories monthly activities report, January 1963

Description: This is the monthly report for the Hanford Laboratories Operation January 1963. Reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities, biology operation, physics and instrumentation research, operations research and synthesis, programming, and radiation protection operation are discussed.
Date: February 15, 1963
Partner: UNT Libraries Government Documents Department
open access

Hanford Laboratories monthly activities report, July 1963

Description: This is the monthly report for the Hanford Laboratories Operation, July 1963. Metallurgy, reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities, visits, biology operation, physics and instrumentation research, and employee relations are discussed.
Date: August 15, 1963
Partner: UNT Libraries Government Documents Department
open access

Hanford Laboratories monthly activities report, June 1963

Description: This is the monthly report for the Hanford Laboratories Operation, June 1963. Metallurgy, reactor fuels, chemistry, dosimetry, separation processes, reactor technology, financial activities, visits, biology operation, physics and instrumentation research, and employee relations are discussed.
Date: July 15, 1963
Partner: UNT Libraries Government Documents Department
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