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Investigation Of Windows And Shields For Neutron Point Sources

Description: An empirical approach for the evaluation of shielding materials for macrochemical manipulations of spontaneously fissioning heavy elements (curium and californium) has revealed interesting comparisons. High-density metal halide solutions were compared with lead glass and with rare earth glass for use as shielding windows. Laminated shields of lead-paraffin and uranium-paraffin were compared with water and with paraffin for shielding walls.
Date: May 20, 1959
Creator: Browne, Howard J.; Kaufmann, John A. & Garden, Nelson B.
Partner: UNT Libraries Government Documents Department
open access

Nuclear and Radiation Hazards Evaluation of SRE Fuel Processing and Storage

Description: Nuclear and radiation hazards have been investigated for all phases of operation to be carried out in the mechanical decladding of SRE fuel elements. The SRE fuel is 2.8% enriched with a maximum burnup of 1,000 Mvd/ton and minimum cooling of 120 days. Each element contains 9 kg of uranium metal (~2 kg U-235) and is made up from 84 slugs (3/4"D x 6'"), clad with (10 mil wall) stainless steel tubing. It is planned to ship the fuel from Santa Susana, California, to Oak Ridge in the modified PAR l… more
Date: May 20, 1959
Creator: Suddath, J. C.
Partner: UNT Libraries Government Documents Department
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Parameters of Dissolver Equipment Design - Power Fuel Reprocessing

Description: The Interim Power Fuels Reprocessing Program, as established by the Atomic Energy Commission, provides the service of recovering uranium, thorium, plutonium, etc., from irradiated fuels discharged from non-production reactors of both public and private ownership. To provide this service on an interim basis and at minimum capital investment, the Commission has assigned the processing responsibility for the various fuel types to several AEC sites. The sites are to be assigned fuel types most simi… more
Date: May 20, 1959
Creator: Graf, W. A.
Partner: UNT Libraries Government Documents Department
open access

The Rhode Island and Providence Plantations Atomic Energy Commission Nuclear Science Center Volume II - Safeguard Report

Description: This report presents the description and safeguard evaluation of an open pool research and test reactor rated at one megawatt. The reactor is being proposed by the General Electric Company to the Rhode Island and Providence Plantation Atomic Energy Commission.
Date: May 20, 1959
Creator: General Electric Company
Partner: UNT Libraries Government Documents Department
open access

Survey: Oxidation Characteristics of Columbium and Columbium Base Alloys

Description: Unclassified experimental data concerned with the oxidation characteristics of Nb and Nb-base alloys are presented. The bulk of the results is presented in tabular form and cataloged under laboratory name sub-headings. The theory of alloy development for oxidation resistance is discussed. Methods of evaluating oxidation behavior are outlined.
Date: May 20, 1959
Creator: Clough, W. R. (William Raymond); Hirakis, E. C. & Krutenat, R. C.
Partner: UNT Libraries Government Documents Department
open access

Investigation of a 0.6 hub-tip radius-ratio transonic turbine designed for secondary-flow study 4: rotor loss patterns as determined by hot-wire anemometers with rotor operating in a circumferentially uniform inlet flow field

Description: Report discussing the use of hot-wire anemometers to measure circumferential traces of specific-mass-flow variation for various radial positions at the rotor exit. Results regarding the rotor blade-wake traces, relative total-pressure ratio, and centrifuging of low-momentum fluid are provided.
Date: May 20, 1958
Creator: Kofskey, Milton G. & Allen, Hubert W.
Partner: UNT Libraries Government Documents Department
open access

Investigation of two-stage counterrotating compressor 4: over-all performance of compressor with modified second-stage rotor

Description: Report presenting preliminary tests of a counterrotating axial-flow supersonic compressor, which indicates that a flow limitation in the second rotor restricted the flow rate at design speed. The second-stage rotor was modified by increasing the flow area to increase the flow rate and improve flow stability. Results regarding the overall performance of the modified compressor, radial variation of flow conditions and performance parameters in the second rotor, stability of the shock wave in the … more
Date: May 20, 1958
Creator: Wilcox, Ward W. & Stevans, William
Partner: UNT Libraries Government Documents Department
open access

Monthly Progress Report for the Period April 1, to 30, 1958

Description: The status of the research and development of the Yankee Power Reactor is briefly summarized. (For preceding period see YAEC-66.) (M.H.R.)
Date: May 20, 1958
Creator: Coen, I. H. & Garbe, R. W.
Partner: UNT Libraries Government Documents Department
open access

Performance at Mach Numbers 3.07, 1.89, and 0 of Inlets Designed for Inlet-Engine Matching Up to Mach 3

Description: Report presenting performance of a two-dimensional external-compression inlet designed for various methods of inlet-engine matching up to Mach 3 at Mach 1.89 and Mach 0. Results regarding shock geometry, two-shock ramps, isentropic ramps, profiles, and cowl drag for the various Mach number tests are provided.
Date: May 20, 1958
Creator: Gertsma, L. W. & Beheim, M. A.
Partner: UNT Libraries Government Documents Department
open access

Relation between flow range and other compressor-stage characteristics

Description: Report presenting the development of a method based on blade-element concepts to evaluate the effect of stall or choke-free angle-of-attack range on the attainable pressure rise and relative Mach numbers for cascades or single blade rows. The method was extended to evaluate the effect of usable compressor-stage flow range on the design parameters of the stage flow per unit area, pressure ratio, and rotative speed.
Date: May 20, 1958
Creator: Goldstein, Arthur W. & Schacht, Ralph L.
Partner: UNT Libraries Government Documents Department
open access

Theoretical Rocket Performance of Liquid Methane with Several Fluorine-Oxygen Mixtures Assuming Frozen Composition

Description: "Theoretical rocket performance for frozen composition during expansion was calculated for liquid methane with several fluorine-oxygen mixtures for a range of pressure ratios and oxidant-fuel ratios. The parameters included are specific impulse, combustion-chamber temperature, nozzle-exit temperature molecular weight, characteristic velocity, coefficient of thrust, ratio of nozzle-exit area to throat area, specific heat at constant pressure, isentropic exponent, viscosity, and thermal conductiv… more
Date: May 20, 1958
Creator: Gordon, Sanford & Kastner, Michael E.
Partner: UNT Libraries Government Documents Department
open access

Altitude Performance of a Turbojet Engine Using Pentaborane Fuel

Description: Memorandum presenting a turbojet engine with a two-stage turbine operated with pentaborane fuel continuously for 11.5 minutes at a simulated altitude of 55,000 feet at a flight Mach number of 0.8. The engine incorporated an NACA combustor designed specifically for use with pentaborane fuel. Results regarding oxide formation and deposition, engine operating point, effect of oxide deposits on component performance, effect of oxide deposition on overall performance, and some operational comments a… more
Date: May 20, 1957
Creator: Sivo, Joseph N.
Partner: UNT Libraries Government Documents Department
open access

Altitude performance of a turbojet engine using pentaborane fuel

Description: From Summary: "The primary objectives of the investigation reported herein were to determine the effect of this new combuster design on boric oxide deposition on engine parts and to determine the effect of boric oxide on the performance of multistage turbine. Pentaborance fuel (approx. 130 lb) was used in the engine performance evaluation reported herein. The data presented herein show the engine component and over-all performance deterioration with operation on pentaborane fuel".
Date: May 20, 1957
Creator: Sivo, Joseph N.
Partner: UNT Libraries Government Documents Department
open access

Flowsheet No. 1: Cesium isolation and packaging

Description: An engineering flowsheet has been prepared for the conversion of an aqueous slurry of cesium-zinc-ferrocyanide into a dry cesium chloride product by the calcination process. Flowsheet No. 1 defines a six-step batch-type calcination operation for processing the slurry into a dry powder for offsite shipment in bulk containers. Some of the advantages to this process are as follows: Product losses are expected to be small, estimated to be less than 0.03 percent; the equipment required to process a … more
Date: May 20, 1957
Creator: Wirta, R. W. & Koski, O. H.
Partner: UNT Libraries Government Documents Department
open access

Investigation of Ejection Releases of an MB-1 Rocket From a 0.04956-Scaled Model of the Convair F-106A Airplane at Mach Number 1.59

Description: Report presenting an investigation of the ejection release characteristics of the MB-1 rocket from the missile bay of a model of the Convair F-106A airplane with its fin tips retracted at a simulated altitude of 18,670 feet. Successful ejections of the rocket were made at supersonic speeds by applying a combination of ejection velocity and nose-down pitching moment at release.
Date: May 20, 1957
Creator: Lee, John B.
Partner: UNT Libraries Government Documents Department
open access

Investigation of Ejection Releases of an MB-1 Rocket From a 0.04956-Scaled Model of the Convair F-106A Airplane at Mach Number 1.59

Description: Report presenting an investigation of the ejection release characteristics of the MB-1 rocket from the missile bay of a Convair F-106A airplane. Results regarding pitching moment, ejections, release conditions, and missile trajectory are provided.
Date: May 20, 1957
Creator: Lee, John B.
Partner: UNT Libraries Government Documents Department
open access

Investigation of Ejection Releases of an MB-1 Rocket From a 0.04956-Scaled Model of the Convair F-106A Airplane at Mach Number 1.59 : Coord. No. AF-AM-57

Description: Memorandum presenting an investigation in the 27- by 27-inch preflight jet of the ejection release characteristics of the MB-1 rocket from the missile bay of a 0.04956-scaled model of the Convair F-106A. The MB-1 rocket was ejected with its fin tips retracted, for a simulated altitude of 18,670 feet at a Mach number of 1.59.
Date: May 20, 1957
Creator: Lee, John B.
Partner: UNT Libraries Government Documents Department
open access

Investigation of translating-double-cone axisymmetric inlets with cowl projected areas 40 and 20 percent of maximum at Mach numbers from 3.0 to 2.0

Description: Report presenting the performance of two translating-double-cone inlets with contrasting rates of turning on the spike shoulder and corresponding cowl projected frontal areas of 40 and 20 percent of maximum compared over a range of Mach numbers. Results regarding internal-flow performance, external-flow performance, inlet airflow patterns, and propulsive-thrust comparison are provided.
Date: May 20, 1957
Creator: Connors, James F.; Wise, George A. & Lovell, J. Calvin
Partner: UNT Libraries Government Documents Department
open access

Origin and Development of Leading-Edge Cracks in Turbojet Engine Buckets

Description: Report presenting an investigation to study the origin and development of leading-edge cracking in turbine buckets made of six materials: S-816, M-252, Inconel 550, Inconel 700, Hastelloy R-235, and Jetalloy 1570. Some of the buckets were also given certain stress-relief treatments. Results regarding the development of leading-edge cracks, development of bucket fractures, comparison of performance for the material tested, macro- and microexamination of unfractured and fractured buckets,
Date: May 20, 1957
Creator: Springsteen, D. F.; Gyorgak, C. A. & Johnston, J. R.
Partner: UNT Libraries Government Documents Department
open access

Separation plant effluent gas measurements for determining plutonium production rate

Description: The use of ion chambers or proportional beta counters is recommended for the measurement of Kr{sup 85} in separations plant gaseous effluent. It will be necessary to evaluate the Xe{sup 133} present if short cooling times (less than about 90 days) since irradiation are used. This can be accomplished through calibration and decay measurements. It is concluded that the Kr{sup 85} evolution could be determined to about {plus_minus}5% with careful measurements.
Date: May 20, 1957
Creator: Schwendiman, L. C.
Partner: UNT Libraries Government Documents Department
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