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Reactor physics monthly technical progress report, September 1963

Description: The activities included the single tube fuel element study, production losses encountered upon simultaneous irradiation of Np{sup 237}target material, startup measurements of lattice parameters and spectral indices, neutron lifetime in N-Reactor, production estimates for tritium only, FLEX code, etc.
Date: October 1, 1963
Creator: Nichols, P. F.
Partner: UNT Libraries Government Documents Department
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Organic Coolant Research Summary Report, July 1, 1960-March 31, 1963

Description: : : 7 : ; : = : : 9 ; 8 : ; / he use of organic liquids as reactor moderator-coolants is presented. A major part of the study was devoted to the mechanism of radiolytic damage to coolants. A mathematical treatment for handling information on the relative reactivity of different positions on an aromatic ring was developed in some detail. Determinations on products from the radiolysis of terphenyls, biphenyl, and mixtures of these with benzene indicate that free radicals may be the main reactive … more
Date: October 1, 1963
Creator: Hillyer, J.C.
Partner: UNT Libraries Government Documents Department
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Recovery of uranium from graphite fuels by oxidation and fluorination. Part I. Design and initial operation of engineering-scale apparatus for Rover fuel

Description: Declassified 24 Sep 1973. The recovery of uranium from graphite -- uranium carbide fuels, such as the Kiwi type used in the Rover project, by oxidation with oxygen or air and subsequent direct fluorination of ash by elemental fluorine is being investigated on an engineering scale. Accordingly, a small, engineering-scale, experimental facility was designed, built, and operated. The first six tests, made with a 21/2-in.-diam reactor containing 5 to 7 prototype Kiwi-H-1B-type fuel rods up to 18 in… more
Date: October 1, 1963
Creator: McNeese, L. E. & Scott, C. D.
Partner: UNT Libraries Government Documents Department
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Atomic Binding Energies From a Modified Thomas-Fermi-Dirac Theory

Description: A quantum correction of the statistical model of the atom was obtained by modifying March and Plaskett's region of integration in the (n/sub r/,l), or quantum-number, plane. Integrations over the plane lead, in the unmodified case, to the Thomas-Fermi density expression and energy equation. Integrations over the modified region are here shown to produce a modified Thomas-Fermi expression for the electron density, and a correction to the kinetic energy. The latter correction shows a similarity t… more
Date: October 1, 1963
Creator: Barnes, J.F. & Cowan, R.D.
Partner: UNT Libraries Government Documents Department
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ULTRASONIC INSPECTION OF A SECTION OF THE NS SAVANNAH PRIMARY PIPING SYSTEM

Description: A section of NS Savannah primary pipe and part of a primary system gate valve were examined ultrasonically to determine whether a fluctuating flow of low- temperature makeup water entering through a nozzle in the valve hsnd damaged the components during service. Examination was prompted by failure of a Vallecitos Boiling Water Reactor (VBWR) recirculating pipe in which makeup water was introduced under conditions similar to those in the Savannah. The ultrasonic equipment was calibrated on spare… more
Date: October 1, 1963
Creator: Johnson, C.R.
Partner: UNT Libraries Government Documents Department
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Transuranium Quarterly Progress Report for Period Ending February 28, 1963

Description: The development of separation processes for the transuranium elements, process equipment development, HFIR target fabrication development, design of the TRU Facility, design of development facilities, corrosion studies, and analytical research and development studies are reported. (auth)
Date: October 1, 1963
Creator: Burch, W.D. comp.
Partner: UNT Libraries Government Documents Department
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QUARTERLY STATUS REPORT ON ULTRA HIGH TEMPERATURE REACTOR EXPERIMENT (UHTREX) FOR PERIOD ENDING SEPTEMBER 20, 1963

Description: Construction of the UHTREX facility is about 63% complete and is about 5% behind scheule based on a completion date of February 1964. A series of 84 experimental runs were made in the half-scale flow model of the UHTREX core to investigate the degree of flow unbalance between the 312 fuel channels. It was shown that an initial source of strength of about 10/sup 3/ neutrons/sec is to be expected when UHTREX is fueled with 7 kg of enriched uranium (93.5% U/sup 235/, 1% U 94, and 5.5% U/sup 238/) … more
Date: October 1, 1963
Partner: UNT Libraries Government Documents Department
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Applied Health Physics Annual Report for 1962

Description: The environmental monitoring data processed during 1962 indicated that Laboratory operations did not contribute appreciably to the contamination of the environment with radioactive materials. However, the effects of airborne radioactive materials generated from nuclear weapons tests conducted at various locations throughout the world continued to be reflected in certain parts of the environmental monitoring data. The concentration of radioactive materials in air (as determined by air filtration… more
Date: October 1, 1963
Creator: Hart, J.C. ed.
Partner: UNT Libraries Government Documents Department
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NONDESTRUCTIVE TESTS OF COMPONENTS OF EBR-I, CORE IV

Description: Eddy-current and ultrasonic tests on zirconium rod stock and wire, Zircaloy-2 tubing and rod stock, and stainless steel tubing for use in various core compoments are summarized. Eddy-current tests were also performed on the NaK annulus of assembled blanket elements. (D.C.W.)
Date: October 1, 1963
Creator: Selner, R. H.; Renken, C. J.; Perry, R. B. & Balaramamoorthy, K.
Partner: UNT Libraries Government Documents Department
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PROGRESS IN TREATMENT OF A RADIOACTIVE CONDENSATE WASTE

Description: A waste stream decontamination process based on ion exchange was selected for development. The process is centered on ion-exchange technology developed during recent years in the Hanford Laboratories and other atomic energy research centers. Early attempts at small engineering scale application of ion- exchange technology resulted in less than satisfactory results when compared to laboratory data. The difficulties were traced to nonradioactive impurities in the wastes. Steam stripping and filte… more
Date: October 1, 1963
Creator: Skarpelos, J.M.
Partner: UNT Libraries Government Documents Department
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A Primer on the Act-III Compiler for the Lgp-30 Digital Computer

Description: An introduction to the writing of programs for the compiler for the General Precision LGP-30 computer and to the procedures for translating and solving problems with them is presented. Language, operations, methods, and computer operation are covered. (D.C.W.)
Date: October 1, 1963
Creator: Thacher, H. C., Jr. & Grench, R. E.
Partner: UNT Libraries Government Documents Department
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REVIEW OF POWER AND HEAT REACTOR DESIGNS. Domestic and Foreign

Description: Unclassified information from domestic and foreign literature from January 1952 through September 1963 is compiled. Design characteristics and current information on the status of the individual designs are given, along with references for the associated literature. SNAP systems, proposed reactors, and chemonuclear and test reactors with characteristics similar to power reactors are included. The designs are indexed by name, location, type, and some special characteristics. (D.C.W.)
Date: October 1, 1963
Creator: Appleby, E.R., comp
Partner: UNT Libraries Government Documents Department
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Gamma Amplifier-Discriminator

Description: For applications involving the routine laboratory measurement of gamma radiation, an instrument is described which is simple to opeiate, versatile, compact, and reliable. It consists of a pulse amplifier with charge-sensitive input and delay-line shaping, a differential discriminator capable of covering the range from 2 kev to 7 Mev, a calibration pulser, and a power supply. All controls are calibrated directly in terms of gamma energy. Construction is modular for ease of maintenance, and all c… more
Date: October 1, 1963
Creator: Sewell, Curtis, Jr.
Partner: UNT Libraries Government Documents Department
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FAST ANALOGUE MULTIPLIERS WITH FIELD-EFFECT TRANSISTORS

Description: The solution time of analog multipliers using field-effect transistors is investigated. This time is ultimately limited by the charging time of the transistor junction. In typical devices suitable for analog multiplication, the charging time is found to be about 10 to 20 nsec for a multiplication error of < 1%. A four quadrant pulse amplitude multiplier circuit with a solution time equal to the transistor charging time is described. (auth)
Date: October 1, 1963
Creator: Radeka, V.
Partner: UNT Libraries Government Documents Department
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