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Radial zoning of large LMFBRs. Part II. An analytical approach

Description: The optimum nuclear radial power peaking factor as a function of radial zoning is investigated for large carbide LMFBRs of the 5000 MW(t) class. Four different fuel volume fractions are considered. The two radial zones are characterized by different plutonium enrichments. The dependence of the optimum power peaking factor on the volume and enrichment ratios of outer to inner core is investigated for static conditions and for burn cycles corresponding to first core loading. A simple phenomenolog… more
Date: August 1, 1975
Creator: King, M. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Silicon ribbon growth by a capillary action shaping technique. Quarterly technical progress report No. 1

Description: Progress during the first quarter of the contractual effort is described. The work performed relates (a) to ribbon growth by a capillary action shaping technique, (b) to ribbon characterization, and (c) to economic evaluation and computer-aided simulation of ribbon growth. Actual progress includes growth of 12-mm and 25-mm-wide ribbon with individual lengths ranging from 0.12 to 1.06 meters. The growth of silicon tubes of 6-mm diameter, 1-mm wall thickness, and more than 100-cm length was also … more
Date: August 1, 1975
Creator: Schwuttke, G. H.; Ciszek, T. F. & Kran, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Search for backwards produced exotic meson resonances and study of particle spectra and mass distributions in the reaction. pi. /sup +/ + P. -->. n (forward) + X/sup + +/ at 8. 4 GeV/c. [Upper limits, G parity, 8. 4 GeV/c]

Description: Results are reported from a hybrid experiment designed to search for backwards produced I = 2 exotic meson resonances by investigating the backward scattering reactions: ..pi../sup +/ + p ..-->.. in (forward) + ..pi../sup +/..pi../sup +/, ..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup -/, ..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup -/..pi../sup -/, and p anti p..pi../sup +/..pi../sup +/ at an incident pion momentum of 8.4 GeV/c. The SLAC 15'' rapid cycling bubble chamber, … more
Date: August 1, 1975
Creator: Alam, M. S.; Brabson, B. B. & Galloway, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interprocessor interface for data transfer between PDP-8/L and NOVA 1220 dedicated gamma energy analysis systems

Description: A method for data communication between PDP-8/L and NOVA 1220 computer-based multichannel analyzer systems is described. The method is implemented by modification of each system's operating program with appropriate I/O subroutines and by installation of a minor amount of hardware logic to a NOVA general purpose interface board. The method provides for high speed transfer of gamma energy analysis data between a Nuclear Data Corporation 50/50 system and a Tracor-Northern Corporation 660 system. (… more
Date: August 1, 1975
Creator: Troyer, G. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LOFT Primary Coolant Pump Separate-Effects Tests

Description: Two pump and motor units, indentical to those to be used in the primary-coolant system of the LOFT facility, were subjected to a series of tests to determine their suitability for loss-of-coolant experiments. These tests were mainly decompressions intended to simulate the various loadings which will occur in LOFT experiments. Additionally, performance tests, cavitation tests, and tests of the water injection to the motor and bearings were made. Various checks and measurements were made before a… more
Date: August 1, 1975
Creator: Felicione, F. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High temperature properties of nuclear reactor coolants and thermodynamic power cycle working fluids. Technical progress report, October 1, 1974--September 30, 1975. [LMFBR]

Description: Vapor pressure measurements on sodium by the pressure tube method are reported up to 3,267 lbs/sq. in. absolute and 4340 deg Rankine. A picnometer-type apparatus for measuring the isothermal compressibility of liquid sodium has been completed. It was tested with water, giving reasonably good checks of steam table values. This apparatus is expected to be able to also provide P-V-T data on sodium up to some 3000/sup 0/F, and on cesium to the critical region. The program on properties of mercury v… more
Date: August 1, 1975
Creator: Bonilla, C. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Temperature dependence of the fir absorption spectrum in amorphous dielectrics. [GeO/sub 2/ PMMA, vitreous SiO/sub 2/ with and without 600 ppM H/sub 2/O]

Description: A study of the temperature dependence of the absorption coefficient in amorphous dielectrics below 10 cm/sup -1/ enabled the identification of energy level configurations from thermal population changes. It was found that the anomalous low frequency modes in glasses are comprised of widely spaced manifolds of energy levels.
Date: August 1, 1975
Creator: Mon, K. K.; Chabal, Y. J. & Sievers, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bioenergetics of three aquatic insects determined by radioisotopic analyses. [/sup 51/Cr and /sup 14/C tracer techniques]

Description: The bioenergetics of Simulium spp. and Cheumatopsyche analis from Rattlesnake Springs and Snively Creek, respectively, Benton County, Washington and Tricorthodes minutus from Deep Creek, Oneida County, Idaho were studied using a variety of techniques. Ingestion rates were measured using food sources (diatoms, finely ground watercress, bacteria, and blue-green algae) labelled with /sup 51/Cr and /sup 14/C. Theoretical ingestion rates were calculated from analyses of gut weights and digestion tim… more
Date: August 1, 1975
Creator: McCullough, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radial zoning in large LMFBRs. Part I

Description: The effect of radial zoning on optimization of the nuclear power peaking factor is considered for large LMFBRs of the 5000 MW(t) class. The dependence of the power peaking factor on the ratios of outer-to-inner core volumes and enrichments was investigated for static conditions and burn cycles corresponding to first core loadings and equilibrium cores. Carbide and nitride fuels were considered.
Date: August 1, 1975
Creator: King, M. J. & Barthold, W. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interpretation of recent laser-plasma experiments

Description: This review of laser implosion research contains discussions on the efficiency of light absorption, processes of absorption, and the energy spectra of heated electrons. Diagrams are given showing the various processes and stages of a laser imploded target. Some calculational results using the LASNEX code are described. (MOW)
Date: August 1, 1975
Creator: Shay, H. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of methyl alcohol as a vehicle fuel extender. Final report

Description: Methyl alcohol (methanol) can be made from coal and waste products with reasonable thermal efficiency. Strong interest in blending this liquid fuel with gasoline for automotive use has developed. A research program is described which characterized the behavior of methanol-gasoline blends in spark ignition engines, particularly those used in automobiles. The program included: characterizing octane ratings of methanol-gasoline blends, a single cylinder engine study of the effects of engine parame… more
Date: August 1, 1975
Creator: Johnson, R. T. & Riley, R. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uranium favorability of tertiary sedimentary rocks of the western Okanogan highlands and of the upper Columbia River valley, Washington. [Measurement and sampling of surface sections, collection of samples from isolated outcrops, and chemical and mineralogical analyses of samples; no known uranium deposits]

Description: Tertiary sedimentary rocks in the northern portions of the western Okanogan highlands and in the upper Columbia River valley were investigated during a regional study to determine the favorability for potential uranium resources of the Tertiary sedimentary rocks of northeastern Washington. This project involved measurement and sampling of surface sections, collection of samples from isolated outcrops, and chemical and mineralogical analyses of samples. No portion of the project area of this rep… more
Date: August 1, 1975
Creator: Marjaniemi, D. K. & Robins, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Lapping equipment instrumentation

Description: Instruments were developed for accurately measuring the mechanical power input to the surface of a spherical part being lapped to a superfinish. Slip rings were developed to remove the torque signal from the rotating shaft. Accurate gaging equipment for applied pneumatic pressure and lap machine shaft rotation rate was installed. Torque measurements accurate to +-0.03 in. oz. (+-0.212 mN.m), pressures to +-0.01 psig (+-69 Pa), and rotation rates to +-3 rpm (+-0.3 rad/sec) are continuously measu… more
Date: August 1, 1975
Creator: Gray, J. L.; Klingsporn, P. E. & Chandler, L. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uranium favorability of tertiary sedimentary rocks of the Pend Oreille River valley, Washington. [Measurement and sampling of surface sections, collection of samples from isolated outcrops, chemical and mineralogical analyses of samples, and examination of available water logs]

Description: Tertiary sedimentary rocks in the Pend Oreille River valley were investigated in a regional study to determine the favorability for potential uranium resources of northeastern Washington. This project involved measurement and sampling of surface sections, collection of samples from isolated outcrops, chemical and mineralogical analyses of samples, and examination of available water well logs. The Box Canyon Dam area north of Ione is judged to have very high favorability. Thick-bedded conglomera… more
Date: August 1, 1975
Creator: Marjaniemi, D. K. & Robins, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy statistics. A supplement to the summary of national transportation statistics

Description: This annual report is a compendium of selected time-series data describing the transportation, production, processing, and consumption of energy. The statistics have been assembled from a wide variety of sources, including the U.S. Department of the Interior, the Interstate Commerce Commission, and the American Petroleum Institute. The report is divided into three main sections. The first, entitled ''Energy Transport,'' contains such items as the revenues and expenses of oil pipeline companies,… more
Date: August 1, 1975
Creator: Gay, W. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nuclear-powered Hysat spacecraft: comparative design study

Description: The study shows that the all-nuclear spacecraft can have a substantial weight advantage over a hybrid (nuclear/solar) or all-solar spacecraft, owing to a further reduction in power requirement, and to the elimination of such equipment as the sensor gimbal and rotating joint assemblies. Because the need for a sun-oriented section is eliminated, the all-nuclear spacecraft can be designed as a monolithic structure, with the sensor and other payload firmly secured in a fixed position on the structu… more
Date: August 1, 1975
Creator: Raab, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Control system for solar heating and cooling

Description: A control system is being developed that will be capable of operating solar heating and cooling systems covering a wide range of configurations, and using different operating strategies that may be optimal for different climatic regions. To insure widespread applicability of the control system, it is being designed to allow for modification for operating with essentially all practical heating and cooling system configurations and control algorithms simply by interchange of replaceable modules i… more
Date: August 1, 1975
Creator: Wahlig, M.; Binnall, E.; Dols, C.; Graven, R.; Selph, F.; Shaw, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Water Resources Research Program. Surface thermal plumes: evaluation of mathematical models for the near and complete field

Description: This report evaluates mathematical models that may be used to predict the flow and temperature distributions resulting from heated surface discharges from power-plant outfalls. Part One discusses the basic physics of surface-plume dispersion and provides a critical review of 11 of the most popular and promising plume models developed to predict the near- and complete-field plume. Part Two compares predictions from the models to prototype data, laboratory data, or both. Part Two also provides a … more
Date: August 1, 1975
Creator: Dunn, W. E.; Policastro, A. J. & Paddock, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Multiple HEPA filter test methods, July 1, 1974--March 31, 1975

Description: A laboratory apparatus has been constructed for testing two HEPA filters in a series configuration. The apparatus consists of an instrumented wind tunnel in which the HEPA filters are mounted, and an auxiliary wind tunnel for obtaining diluted samples of the challenge aerosol upstream of the first filter. Measurements performed with a single particle aerosol spectrometer demonstrate the capability for measuring overall protection factors of greater than 2.5 x 10$sup 8$. The decay of penetration… more
Date: August 1, 1975
Creator: Schuster, B. G. & Osetek, D. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Applied Health Physics and Safety Annual Report for 1974. Progress Report, 1974

Description: This report describes and summarizes the activities of the applied sections of the Health Physics Division, i.e., Radiation Monitoring, Radiation and Safety Surveys, Industrial Safety and Special Projects, and the Environmental Surveillance Department of the Analysis and Assessment of Health Effects Section for calendar year 1974.
Date: August 1, 1975
Creator: Oak Ridge National Laboratory
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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