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Thermal Analysis of Type 3 Elements in the SM-1, SM-1A and PM-2A Cores

Description: Report describing a study which analyzed thermal characteristics of Type 3 elements planned for installation in the SM-1, SM-1A and PM-2A plants, for both steady state and loss of flow transient conditions. Results of this analysis for steady state conditions indicate that the SM-1, SM-1A and PM-2A Type 3 cores will operate safely at design and scram conditions.
Date: March 30, 1962
Creator: Davidson, S. L. & Segalman, I.
Partner: UNT Libraries Government Documents Department

Distribution of Soils Bordering the Mississippi River from Donaldsonville to Head of Passes

Description: Summary: "This report maps the distribution of soils which border the Mississippi between river mile 189 and Head of Passes in southeast Louisiana with special regard to their engineering significance. The subsurface disposition of depositional environments and their associated soil types are shown on 34 subsurface profiles. The text describes the physiographic and geologic development of the area studied, summarizes physical and engineering characteristics of the engineering soil types mapped, and discusses some of the effects of geologic factors on river migration" (p. vii).
Date: June 1962
Creator: Waterways Experiment Station (U.S.)
Partner: UNT Libraries Government Documents Department

Stress Pulse-Trains from Multiple Reflection at a Zone of Many Discontinuities: a Notation for Machine Solution

Description: Abstract: "Presented in this report is a numerical method by which may be calculated the amplitudes of the trains of pulses that result when a single simple stress pulse encounters a zone of many abrupt discontinuities in a slender rod. The notational scheme employed enables the system of multitudes of individual progagating waves to be studied in terms of analogous number sets which may be mechanically generated. The notational concept and related operational rules, described in this report, have been used to program the problem for solution with the IBM 704 computer. The program is briefly discussed. Illustrative examples were computed for rods of two to ten discontinuities. These were compared with a pulse reflected in a rod of an unlimited number of steps."
Date: August 1962
Creator: Reed, R. P.
Partner: UNT Libraries Government Documents Department

A Scale-Model Experiment of the Crater Produced Through Terrain of Randomly Varying Elevation by Row Charges

Description: Abstract: "A scale-model experiment was made to check the application of charge spacing rules developed from earlier studies to terrain of randomly varying elevation. Since a prominent possible peacetime use of nuclear explosives is the excavation of a trans-Isthmian canal, the model used was a portion of such a route. The experiment resulted in nearly the desired linear crater dimensions; the spacing rules developed for level trerain give a satisfactory channel when applied to terrain with elevations varying in random fashion."
Date: November 1962
Creator: Vortman, Luke J.
Partner: UNT Libraries Government Documents Department

FUEL CYCLE PROGRAM. A BOILING WATER REACTOR RESEARCH AND DEVELOPMENT PROGRAM. Eighth Quarterly Progress Report, April-June 1962

Description: A frequency analysis was made of the VBWR stability test data. Interpretation of the steady-state noise observed in the stability tests involved consideration of several possible sources of excitation. One of these, a theory of water surface waves, is summarized. Visual and destructive examinations were made of selected fuel rods. Fretting corrosion of the Zircaloy-clad fuel rods against stainless steel spacers was observed. Evidence that UO/sub 2/ thermal conductivity increases with time was obtained. Hot gas isotatic pressed fuel rods failed after 316 Mwd/T irradiation and 5 months storage under water. Shakedown operation of a 7-rod test section for measuring burnout heat flux was conducted. A comparison of measured and calculated isotopic composition for uranium and plutonium isotopes after 400 Mwd/T irradiation indicated that the calculations underestimate capture in U/sup 238/ and overestimate capture in Pu/ sup 239/. Flux wire irradiations provided axial and radial flux profiles and the ratio of thermal to fast flux as a function of axial position. (M.C.G.)
Date: July 10, 1962
Creator: Hodde, J.A. comp.
Partner: UNT Libraries Government Documents Department

Development of Ductile Beryllium Composites

Description: The work of the second year to produce ductile beryllium composites by liquid-phase sintering is reported. Ductility in a predominantly beryllium composite was sought through the attainment of a structure in which beryllium particles are enveloped in a ductile metallic matrix. As the result of the investigation of aluminum-silver binary al!oys, aluminum-40 to 50% silver compositions were added to the silver-5 to 8% aluminum compositions as candidate matrices satisfying the requirenent that the flow stress of the matrix be matched to that of the principal phase. Composites produced for final evaluation contained defects originating from the processing schedule. The feasibility of applying liquid- phase sintering to produce beryllium composites has been established. However, in order to obtain a fair evaluation of the question of ductility improvement, it is necessary to develop compacting and sintering procedures which will yield sound material for mechanical testing.
Date: February 1, 1962
Partner: UNT Libraries Government Documents Department

SNAP-50 space powerplant

Description: No Description Available.
Date: November 28, 1962
Partner: UNT Libraries Government Documents Department

SODIUM MASS TRANSFER. II. SCREENING TEST DATA AND ANALYSIS. 3. CORROSION SAMPLE DATA

Description: A compilation is given of corrosion data for approximates 570 samples that were exposed prior to Dec. 31, 1961, to flowing sodium in six sodium mass transfer test loops. The loops and samples comprised 316 stainless steel, 21/4 Cr--1 Mo steel, and/or 5 Cr-- 1/2 Mo-- 1/2 Ti steel. Analysis reports are also presented for all the test runs reported. (D.L.C.)
Date: May 1, 1962
Partner: UNT Libraries Government Documents Department

HAZARDS ANALYSIS. RADIOLOGICAL HAZARDS

Description: ABS>Doses were calculated for persons off site and in the EGCR cortrol room following the maximum credible accident (depressurization), and for the public due to normal operational stack release. The assumptions and calculations used in the study are given in detail. (D.L.C.)
Date: August 31, 1962
Creator: Courtney, J.C.
Partner: UNT Libraries Government Documents Department

SNAP 2 POWER CONVERSION SYSTEM. ROTATIONAL SPEED CONTROL. Topical Report No. 18

Description: The rotational speed control for the SNAP 2 power conversion system employs the concept of controlling speed by electrically loading the alternator. Speed is controlled in this manner to plus or minus 1% of nominal. This report covers work performed from March 1, 1960 to July 1, 1961. (auth)
Date: November 1, 1962
Creator: Dauterman, W.E. & Viton, E.J.
Partner: UNT Libraries Government Documents Department

RADIOCHEMISTRY DURING START-UP AND EARLY OPERATION OF THE NUCLEAR SHIP SAVANNAH. Final Report

Description: It was demonstrated that the radioactivity content of the primary system of the N.S. Savannah reactor plant was small and normal during the period of initial criticality and start-up, and during the sea trials and acceptance tests. The principal radioactive constituents (/sup 56/Mn, /sup 41/Ar, /sup 13/N and / sup 18/F) are either intrinsic to the primary system of the pressurized water reactor or are normally found in the coo1ant in concentrations comparable to those observed in this program. The /sup 56/Mn concentrations observed at the various reactor power levels were slightiy higher, relative to those for the other nuclides, than those observed in similar reactor plants. This slightly increased concentration is attributable to the fact that the coolant of this reactor was generally maintained between pH6 and pH7, whereas the primary coolants of the other plants were maintained at somewhat higher pH values. Data for fission product concentrations in the primary coolant indicate that their only significant source is uranium contamination of the reactor core surfaces. The observed concentrations do not represent any significant hazard or potential difficulty in plant operation. The small value of 5.6 x 10/sup -2/ mu g/cm/sup 2/ for the surface density of uranium indicates that no significant contamination of these surfaces occurred during core fabrication. No significant defect in a fuel element cladding was detected during the period in which these measurements were performed. The efficiency of the demineralizer for removal of anionic and cationic radionuclides from the primary coolant was shown to exceed 90%. Volatile radionuclides were the only radioactive constituents found in the demineralizer effluent. Data obtained for the concentrations of gross radioactivity in the waste tanks were maintained below the maximum permissible concentrations for discharge to the environment. On the basis of these radiochemistry studies, it may be concluded that the ...
Date: July 1, 1962
Creator: Battist, L; Winnowski, W S; Dieterly, D K & Koch, R C
Partner: UNT Libraries Government Documents Department

EFFECTS OF CHRONIC EXCESS SALT INGESTION. EXPERIMENTAL HYPERTENSION IN THE RAT, CORRELATION WITH HUMAN HYPERTENSION

Description: Results are reported from a study of hypertension in rats. Variables investigated included excess salt (NaCl) ingestion, genetic factors, sex, and age. The data indicate that excess salt ingestion unmasked the hypertensive trait in genetically sensitive animals. The influence of age was found to be apparent rather than real and the result of the longer time over which noxious environmental factors exert their influence on blood pressure in individuals with varying degrees of susceptibility. Correlation of the data with human hypertension data is discussed. (C.H.)
Date: January 1, 1962
Creator: Dahl, L.K.
Partner: UNT Libraries Government Documents Department

RADIATION-INDUCED CHROMOSOME ABERRATIONS AND LOSS OF REPRODUCTIVE INTEGRITY IN TRADESCANTIA

Description: The reproductive integrity of single meristematic cells of Tradescantia occidentalis exposed to acute doses of x rays was investigated. The dose response curve was sigmoid and similar to that reported for a variety of mammaliand cell lines having a D/sub O/ of 149 r and and extrapolation number of 1.6. Detailed observations were also made of all forms of chromatid and chromosome aberrations induced after irradiating all stages of the mitotic cycle of these same meristematic cells. Attempts were then made to correlate these two sets of data and to equate loss of genetic information to loss of reproductive integrity. (auth)
Date: January 1, 1962
Creator: Davies, D.R.
Partner: UNT Libraries Government Documents Department

A SERIAL AUTORADIOGRAPHIC ANALYSIS OF H$sup 3$-GLYCINE UTILIZATION AND DISTRIBUTION IN THE FEMORA OF GROWING MICE

Description: The amino acid composition of collagen and the role of collagen in bone formation are reviewed. It is pointed out that glycine is the predominant amino acid of collagen. Results are reported from a serial, autoradiographic study of the localization and distribution of H/sup 3/ in the femora of young mice following the administration of H/sup 3/-glycine. The functional behavior and capacity of different skeletal cells in matrix production are discussed. (26 references.) (C.H.)
Date: January 1, 1962
Creator: Tonna, E.A.; Cronkite, E.P. & Pavelec, M.
Partner: UNT Libraries Government Documents Department

NEUTRON ACTIVATION ANALYSIS: CLINICAL AND BIOLOGICAL STUDIES OF MANGANESE

Description: From Symposium on Radioactivation Analysis and its Application to the Biological Sciences, Saclay, France, Sept. 1963. The use of neutron activation analysis for studying the metabolism of manganese in the body is discussed. Results of various clinical and biological studies of manganese metabolism are described. Some of the results indicate that pigments (melanin) in general contain high manganese concentrations and might play a role in extrapyramidal diseases. (D.L.C.)
Date: January 1, 1962
Creator: Cotzias, G.C.; Papavasiliou, P.S. & Miller, S.T.
Partner: UNT Libraries Government Documents Department