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NACA Research Memorandums
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Atomic Energy Commission Reports
367
NACA Technical Notes
338
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254
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198
NACA Technical Memorandums
152
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149
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7-GeV Advanced Photon Source : Conceptual Design Report
During the past decade, synchrotron radiation emitted by circulating electron beams has come into wide use as a powerful, versatile source of x-rays for probing the structure of matter and for studying various physical processes. Several synchrotron radiation facilities with different designs and characteristics are now in regular operation throughout the world, with recent additions in this country being the 0.8-GeV and 2.5-GeV rings of NSLS at Brookhaven National Laboratory. However, none of the operating facilities has been designed to use a low-emittance, high-energy stored beam, together with modern undulator devices, to produce a large number of hard x-ray beams of extremely high brilliance. This document is a proposal to the Department of Energy to construct and operate high-energy synchrotron radiation facility at Argonne National Laboratory. We have now chosen to set the design energy of this facility at 7.0 GeV, with the capability to operate at up to 7.5 GeV.
Date:
April 1987
Creator:
Argonne National Laboratory
Object Type:
Report
System:
The UNT Digital Library
15 MW Gas-Cooled Closed-Cycle Reactor Power System Study: Final Report, Volumes 1-2
This report covers a feasibility study for a 15 megawatt gas cooled reactor power system, conducted by the Ford Instrument Company Division of the Sperry Rand Corporation during the months of March to August 1956.
Date:
April 1, 1957
Creator:
Ford Instrument Company
Object Type:
Report
System:
The UNT Digital Library
"25" Critically Consultation with J. W. Morfitt : April 3, 1950
Summary: "Criticality was considered impossible in any contingency encountered in practice under either of the following conditions which include no safety factor: (a) In any isolated cylinder not more than 5 in. in disruptor, if the total amount of U235 present does not exceed 7.5 Eg. (b) In an isolated vessel of any shape and size, if the total amount of U235 present does not exceed 880 g. An "isolated" vessel is one which does not "see" more than 0.1 [...] other vessels containing fissionable material."
Date:
April 3, 1950
Creator:
Merrill, E. T. & Sege, G.
Object Type:
Report
System:
The UNT Digital Library
1000-MWe LMFBR Follow-On Study, Task I Report: Volume 2, Concept I System Description
From introduction: "This report has been prepared in conjunction with the Liquid Metal Fast Breeder Reactor (LMFBR) Follow-On Study. It is the Concept I description of Task I as outlined by Argonne National Laboratory (ANL) in Appendix C of their Follow-On Study Program."
Date:
April 1967
Creator:
Boyer, R. L.
Object Type:
Report
System:
The UNT Digital Library
A 1620 FORTRAN Programme for the Calculation of Bragg Angles for use in Powder X-Ray Diffraction Investigations
An IBM 1620 program is described that calculates the Bragg angles for cubic, hexagonal, and tetragonal crystal systems for use with powder x-ray diffraction techniques. Allowance is made for absent reflections in the case of face- and body-centered cubic and close-packed hexagonal materials.
Date:
April 1963
Creator:
Walker, D. G.
Object Type:
Report
System:
The UNT Digital Library
A 1620 FORTRAN Programme for the Refinement of Lattice Parameters by a Modified Least Squares Method
An I.B.M. 1620 programme is described which calculates refined lattice parameters from X-ray diffraction data according to Hess' Method. The programme may be used for cubic, hexagonal, and tetragonal systems and three systematic error functions are included. The output includes the refined parameters their stand errors, and the misfit of the data at each experimental point.
Date:
April 1963
Creator:
Walker, D. G.
Object Type:
Report
System:
The UNT Digital Library
The 1929 Rhon soaring-flight contest
The limitation of the 1929 contest to performance gliders necessitated the establishment of a formula which would make it possible to distinguish between performance gliders and school and training gliders. The sinking speed was therefore adopted as the basis for such a distinction, and the requirement was made that the sinking speed of a performance glider should not exceed 0.8 m/s. The rest of the report details the different entries with regard to design and performance.
Date:
April 1930
Creator:
Lippisch, Alexander
Object Type:
Report
System:
The UNT Digital Library
630A Maritime Nuclear Steam Generator Scoping Study
From foreword: This report presents the results of a study of a nuclear steam generator which uses reactor technology during the aircraft nuclear propulsion program to produce superheated steam for marine propulsion.
Date:
April 6, 1962
Creator:
General Electric Company. Flight Propulsion Division.
Object Type:
Report
System:
The UNT Digital Library
N.A.C.A. Flight-Path Angle and Air-Speed Recorder
"A new trailing bomb-type instrument for photographically recording the flight-path angle and air speed of aircraft in unaccelerated flight is described. The instrument consists essentially of an inclinometer, air-speed meter and a film-drum case. The inclinometer carries an oil-damped pendulum which records optically the flight-path angle upon a rotating motor-driven film drum. The air-speed meter consists of a taut metal diaphragm of high natural frequency which is acted upon by the pressure difference of a Prandtl type Pitot-static tube" (p. 1).
Date:
April 1926
Creator:
Coleman, Donald G.
Object Type:
Report
System:
The UNT Digital Library
[Aberdeen Quadrangle: Average Record Data Listings]
Average record data listings taken during aerial gamma-ray and magnetic surveys of the Aberdeen quadrangle in South Dakota.
Date:
April 1981
Creator:
Aero Service (Firm)
Object Type:
Dataset
System:
The UNT Digital Library
[Aberdeen Quadrangle: Single Record Data Listings]
Single record data listings taken during aerial gamma-ray and magnetic surveys of the Aberdeen quadrangle in South Dakota.
Date:
April 1981
Creator:
Aero Service (Firm)
Object Type:
Dataset
System:
The UNT Digital Library
Abnormal Grain Growth in S-816 Alloy
From Introduction: "This report presents the results obtained to date of an investigation to establish the fundamental causes of abnormal growth in S-816 alloy under conditions encountered during the forging of blades for the gas turbine of jet engines."
Date:
April 1952
Creator:
Rush, A. I.; Freeman, J. W. & White, A. E.
Object Type:
Report
System:
The UNT Digital Library
Absolute Cross Sections for Secondary Particles Produced in High-Energy Nuclear Bombardments
From abstract: Absolute cross sections for the production of charged secondary particles is the bombardments of aluminum, nickel, silver, and gold by 332-Mev protons, 187-deuterons, and 380-Mev alpha particles have been determined.
Date:
April 20, 1956
Creator:
Bailey, L. Evan
Object Type:
Report
System:
The UNT Digital Library
Absolute Cross Sections of the Reaction P + P - w+ + d
Absolute differential cross sections for the reaction p + p - w+ + d were obtained by detecting meson-deuteron coincidences produced by passing the 340-Mev external proton beam of the Berkeley synchro-cyclotron through a liquid hydrogen target.
Date:
April 23, 1953
Creator:
Crawford, Frank Stevens, Jr.
Object Type:
Report
System:
The UNT Digital Library
Abstracts from the German Technical Press: Rates for Flights Organized by the State
Report presenting tariffs that are written for all aircraft manufacturing companies to follow regarding aircraft orders.
Date:
April 1921
Creator:
United States. National Advisory Committee for Aeronautics.
Object Type:
Report
System:
The UNT Digital Library
ABWR Design and Development Quarterly Progress Report, January 1 Through March 31, 1962
Quarterly design and development progress report on the activities of the Army Boiling Water Reactor (ABWR) Program.
Date:
April 15, 1962
Creator:
Combustion Engineering, inc. Nuclear Division.
Object Type:
Report
System:
The UNT Digital Library
Accuracy of Relaxation Length Measurements
We consider here the accuracy of relaxation lengths measured during the water-uranium lattice experiments. Since such an analysis for all measurements would take a great deal of time, we have applied it to just one lattice. This one (2:1 water-to-metal ratio) was chosen completely at random.
Date:
April 28, 1953
Creator:
Kouts, H.
Object Type:
Report
System:
The UNT Digital Library
The Accuracy of the Substitute-Stringer Approach for Determining the Bending Frequencies of Multistringer Box Beams
"The accuracy of the substitute-stringer approach for including the effects of shear lag in the calculation of the transverse modes and frequencies of multistringer box beams is investigated. Box beams, the covers of which consist of normal-stress-carrying stringers on sheets which carry not only shear but also normal stress, are analyzed exactly. Frequencies of beams with various numbers of stringers, obtained by means of this exact analysis, serve to determine the possible accuracy of the frequencies obtained by the substitute-stringer approach" (p. 1).
Date:
April 1956
Creator:
Davenport, William W.
Object Type:
Report
System:
The UNT Digital Library
Accurate Nuclear Fuel Burnup Analyses; First Quarterly Report, (December 1961 - February 1962)
The objective of the Accurate Nuclear Fuel Burnup Analyses program is to develop more accurate methods for burnup analysis for general use than the current method of analysis of Ca-137 or Sr-90. The program will require from three to five years of effort.
Date:
April 1, 1962
Creator:
Rider, B. F.
Object Type:
Report
System:
The UNT Digital Library
Acid Formation in the Radiolysis of Phosphorus Esters
The radiolytic decomposition of tributyl phosphate has been show by burr to product gases, acids, and polymers. the acids that are formed can limit the usefulness of tributyl phosphate for the processing of radioactive materials. The study of acid formation on radiolysis therefor becomes important to us for the understanding of the mechanism of acid formation, the influence of added materials and the effect of the structure of organo- phosphorous compounds. Samples of purified esters have been irradiated in the ORNL cobalt source. Conclusions: (1) The formation of acid from tributyl phosphate during irradiation with cobalt gamma rays involves a mechanism that is not a primary step. Evidence has been obtained for a secondary reaction that is minimized by the presence of certain compounds. (2) Toluene acting as an inhibitor for radiolytic formation of acid may indicate the usefulness of an aromatic hydrocarbon diluent in processing. (3) The aromatic hydrocarbon, when phenyl, was not effective when it was part of the molecule. (4) First tests revealed that dibutyl butyl-phosphonate produced less acid the TBP and may warrant further consideration for process application.
Date:
April 3, 1957
Creator:
Baldwin, W. H.
Object Type:
Report
System:
The UNT Digital Library
Acoustic, thrust, and drag characteristics of several full-scale noise suppressors for turbojet engines
From Introduction: " Considerable analytical and experimental research has been done to find means of reducing the noise levels of the turbojet transports. Noise levels can be decreased by engine redesign to reduce the jet-exit velocity (ref. 1), proper flight-climb techniques (ref. 2), and the use of noise-suppression exhaust nozzles (refs. 3 to 5). The present report is concerned with the last method."
Date:
April 1958
Creator:
Ciepluch, Carl C.; North, Warren J.; Coles, Willard D. & Antl, Robert J.
Object Type:
Report
System:
The UNT Digital Library
The Acute Radiotoxicity of Injected Na²⁴ for Mice and Rats
The following report describes the results from studies based on the toxicity and metabolism of radioactive substances derived from uranium fission. Rats and mice were administered radioactive sodium and reactions and changes were studied.
Date:
April 15, 1948
Creator:
Finkle, R. D.; Snyder, R. H.; Kisieleski, Walter E.; Teresi, J.; Broido, A. & Tompkins, P. C.
Object Type:
Report
System:
The UNT Digital Library
Adaptation of Combustion Principles to Aircraft Propulsion, Volume 1, Basic Considerations in the Combustion of Hydrocarbon Fuels with Air
The report summarizes source material on combustion for flight-propulsion engineers. First, several chapters review fundamental processes such as fuel-air mixture preparation, gas flow and mixing, flammability and ignition, flame propagation in both homogenous and heterogenous media, flame stabilization, combustion oscillations, and smoke and carbon formation. The practical significance and the relation of these processes to theory are presented. A second series of chapters describes the observed performance and design problems of engine combustors of the principal types. An attempt is made to interpret performance in terms of the fundamental processes and theories previously reviewed. Third, the design of high-speed combustion systems is discussed. Combustor design principles that can be established from basic considerations and from experience with actual combustors are described. Finally, future requirements for aircraft engine combustion systems are examined.
Date:
April 1, 1955
Creator:
Barnett, Henry C. & Hibbard, Robert R.
Object Type:
Report
System:
The UNT Digital Library
Additional Results in a Free-Flight Investigation of Control Effectiveness of Full-Span, 0.2-Chord Plain Ailerons at High Subsonic, Transonic, and Supersonic Speeds to Determine Some Effects of Wing Sweepback, Aspect Ratio, Taper, and Section Thickness Ratio
Report discussing an aerodynamic control effectiveness study using free-flight, rocket-propelled test vehicles. Information about the effects of wing sweepback, aspect ratio, taper ratio, and section thickness ratio on the rolling effectiveness of full-span, sealed ailerons is provided.
Date:
April 23, 1948
Creator:
Sandahl, Carl A. & Strass, H. Kurt
Object Type:
Report
System:
The UNT Digital Library