Resource Type
Serial/Series Title
NACA Research Memorandums
173
Atomic Energy Commission Reports
75
NACA Technical Reports
37
Hanford Works Reports
26
HW (Series)
21
Oak Ridge National Laboratory Reports
21
University of California Radiation Laboratory Reports
20
ORNL (Series)
14
BNL (Series)
9
Brookhaven National Laboratory Reports
9
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380 Matching Results
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Bevatron Power Supply : Operating and Maintenance Problems
The following report provides results from investigations on the operation of the power supply for the Bevatron Magnet as well as maintenance problems.
Date:
August 12, 1957
Creator:
Harding, J. Gordon
Object Type:
Report
System:
The UNT Digital Library
Dissociation of H₂⁺ by Photons
Abstract: "A measurement was made of the dissociation of vibrationally-excited H2+ ions by photons having quantum energy in the vicinity of 4 e.v. The calculated cross section from theory is 3 x 10-(-18) cm-2. The experimental result is 10-(-17) cm-2; a factor of 10 uncertainty is present because the photon intensity was unknown by that factor."
Date:
June 12, 1957
Creator:
Linlor, William I., 1915-; Barnett, C. F. & Reinhardt, R.
Object Type:
Report
System:
The UNT Digital Library
Neutron Production in the Pinch Due to Instability Breakup
Abstract: "The neutrons from the linear pinch in Berkeley have been shown to originate from deuteron collisions with a large net center-of-mass velocity in one direction along the axis of the pinch tube. The interpretation of this result is that the neutron production associated with the pinch is non-thermonuclear in origin. The object of this paper is to review the experimental evidence and discuss a possible source of the neutron production."
Date:
May 12, 1956
Creator:
Colgate, Stirling A.
Object Type:
Report
System:
The UNT Digital Library
Review of the Xenon Problem
Report discussing studies regarding the properties and nuclear constants of xenon, an element relevant to use of high power thermal neutron reactors.
Date:
March 12, 1952
Creator:
Gast, P. F.
Object Type:
Report
System:
The UNT Digital Library
Behavior of S.I.R. Fuels Irradiated in Sodium: Final Report, Production Test 105-180-P (Special Request KAPL-79: The "Beta Experiment")
Report describing the effects of pile irradiation on fuel materials and coil springs for the Submarine Intermediate Reactor. The investigation was called for by Hanford Irradiation Request No. 79. Results of investigation are detailed in the report.
Date:
August 12, 1952
Creator:
Lambert, J. B., 1929-
Object Type:
Report
System:
The UNT Digital Library
9-Zoom : A One-Dimensional, Multigroup, Neutron Diffusion Theory Reactor Code for the IBM 709 [Supplement]
The following document describes the usage of the LRL 9-ZOOM code, a neutron diffusion theory reactor code for the IBM 709. The code has been modified to solve configuration of a series of stacked cylindrical disks, designating a new geometry case.
Date:
July 12, 1960
Creator:
Stone, S. P.
Object Type:
Report
System:
The UNT Digital Library
Artillery Peak Orientation Study, Mohave County, Arizona
Report describing the results of an orientation study to determine uranium concentrations within the Artillery Peak and Prescott quadrangles in Arizona. It includes concentrations of uranium and 25 other elements based on analysis of wet, dry, and rock samples taken in the area.
Date:
March 12, 1979
Creator:
Puchlik, K. P.; Leach, D. L. & Cazes, D.
Object Type:
Report
System:
The UNT Digital Library
Safety for the Household
Introduction: The purpose of this circular is (a) to emphasize the seriousness of certain risks to life and property frequently occurring in or about the home, (b) to give simple methods of care and caution against such hazards, and (c) to stimulate interest in public measures directed toward safety for household and community.
Date:
January 12, 1948
Creator:
Owen, S. J.
Object Type:
Report
System:
The UNT Digital Library
Discussion on Optimization of Large Oil-Pumped Ultra-High Vacuum Systems
Abstract: "Discussion is directed toward eventual optimization of the largest diffusion-pump systems. Less than 100 diffusion pump fluid molecules per cm 2/sec are possible to detect using an accumulation method. Optimization discussed demands highest possible system speed compatible with the above contamination rate. Bakeable oil diffusion pump systems, with equal orifice valve-tap units, without conventional baffling, permit theoretical through-put speeds up to 0.3 of the system orifice. The average backstreaming rate of oil in two unconventionally baffled commercial pumps of 6-in. and 10-in. size is reduced to < 3 x 10-(-4) g/cm-2/24 hr, including heating and cooling the pump boiler. A Ho factor of >0.4 is maintained. Results on trapping with activated alumina, retained by a wire mesh, at both liquid-nitrogen and room temperature are included. A variety of pumping speed measurements and bakeable combination valve-trap units are discussed."
Date:
September 12, 1960
Creator:
Milleron, Norman & Levenson, L. L.
Object Type:
Report
System:
The UNT Digital Library
Radioactivity Induced in Commercial Materials
Six structural materials (aluminum 2S, aluminum 72S, copper, iron, steel, lead and bismuth) were irradiated for about 100 kilowatt hours in the center of the Argonne pile. The alpha and gamma decays were then followed for 130 days on Geiger counters and are presented here graphically as number of rays per minute per gram per kilowatt hour vs. time of decay. A quantitative interpretation of the gamma-ray decay curves gave fair agreement with the chemical analysis of impurities found in the materials.
Date:
February 12, 1944
Creator:
Seren, Leo, 1918-; Sturm, W.; Moyer, W.; Miller, G. & Jordan, W.
Object Type:
Report
System:
The UNT Digital Library
The Preparation and Properties of Mammalian Ribonucleic Acids
"A method for the preparation of mammalian ribonucleic acids employing high concentrations of guanidine hydrochloride in the fractionation procedure is reported in this paper. Aside from the facility of preparation the method has the advantage of avoiding conditions of acidity and alkalinity which might degrade tissue ribonucleic acids and, by virtue of the protein denaturant action of guanidine salts, of minimizing the possibility for enzymatic degradation" (p. 3).
Date:
October 12, 1950
Creator:
Volkin, E. & Carter, C. E.
Object Type:
Report
System:
The UNT Digital Library
Remote Control Apparatus
Report discussing equipment that can be used to perform chemical and mechanical operations involving radioactive materials safely. Illustrations of the equipment are provided.
Date:
April 12, 1948
Creator:
Goertz, R. C.
Object Type:
Report
System:
The UNT Digital Library
630A Maritime Nuclear Steam Generator: Status Report Number 1
From foreword: The primary purpose of this document is to set forth the current status of the 630A Nuclear Steam Generator, under development for the U.S. AEC.
Date:
September 12, 1963
Creator:
General Electric Company. Nuclear Materials and Propulsion Operation.
Object Type:
Report
System:
The UNT Digital Library
A Mathematical Analysis of the Calutron
Abstract: "The definitions of the fundamental measures of calutron operation including enhancement, current ratio, and process efficiency are set forth with derivations of the relationships between them. An analysis of the plant process is carried out for both the tanks limited and the charge limited case. Equations are derived for plant X output and plant X utilization efficiency. Effective production is defined and the value of increment to a mass of product material in terms of effective production is determined. An equation giving the X concentration below which product material should be reprocessed is derived."
Date:
April 12, 1946
Creator:
Leith, C. E.
Object Type:
Report
System:
The UNT Digital Library
Ice Prevention on Aircraft by Means of Engine Exhaust Heat and a Technical Study of Heat Transmission From a Clark Y Airfoil
"This investigation was conducted to study the practicability of employing heat as a means of preventing the formation of ice on airplane wings. The report relates essentially to technical problems regarding the extraction of heat from the exhaust gases and its proper distribution over the exposed surfaces. In this connection a separate study has been made to determine the variation of the coefficient of heat transmission along the chord of a Clark Y airfoil. Experiments on ice prevention both in the laboratory and in flight show conclusively that it is necessary to heat only the front portion of the wing surface to effect complete prevention" (p. 3).
Date:
June 12, 1931
Creator:
Theodorsen, Theodore & Clay, William C.
Object Type:
Report
System:
The UNT Digital Library
Lateral Stability and Control Measurements of a Fighter-Type Airplane With a Low-Aspect-Ratio Unswept Wing and a Tee-Tail
Report presenting an investigation of the lateral stability and control effectiveness of a model of a fighter-type airplane model with a low-aspect-ratio and 3.4-percent-thick wing with negative dihedral at a range of Mach numbers, sideslip angles, and angles of attack. Results regarding the lateral characteristics at zero angle of attack, lifting conditions, and lateral and directional controls are provided.
Date:
June 12, 1956
Creator:
Arabian, Donald D. & Schmeer, James W.
Object Type:
Report
System:
The UNT Digital Library
A flight evaluation of the longitudinal stability characteristics associated with the pitch-up of a swept-wing airplane in maneuvering flight at transonic speeds
This report presents the results of flight measurements of longitudinal stability and control characteristics made on a swept-wing jet aircraft to determine the origin of the pitch-up encountered in maneuvering flight at transonic speeds. For this purpose measurements were made of elevator angle, tail angle of attack, and wing-fuselage pitching moments (obtained from measurements of the balancing tail loads).
Date:
September 12, 1951
Creator:
Anderson, Seth B. & Bray, Richard S.
Object Type:
Report
System:
The UNT Digital Library
Extrapolation techniques applied to matrix methods in neutron diffusion problems
"A general matrix method is developed for the solution of characteristic-value problems of the type arising in many physical applications. The scheme employed is essentially that of Gauss and Seidel with appropriate modifications needed to make it applicable to characteristic-value problems. An iterative procedure produces a sequence of estimates to the answer; and extrapolation techniques, based upon previous behavior of iterants, are utilized in speeding convergence. Theoretically sound limits are placed on the magnitude of the extrapolation that may be tolerated" (p. 747).
Date:
May 12, 1955
Creator:
McCready, Robert R.
Object Type:
Report
System:
The UNT Digital Library
Analysis and Calculation by Integral Methods of Laminar Compressible Boundary-Layer With Heat Transfer and With and Without Pressure Gradient
From Introduction: "The purpose of the present report is to present a comprehensive summary of theoretical investigations of comprehensible laminar boundary layers which have been carried out since 1949 at the Polytechnic Institute of Brooklyn under the sponsorship and with the financial assistance of the National Advisory Committee for Aeronautics. The results of these investigations are contained primarily in references 1 to 7."
Date:
April 12, 1955
Creator:
Morduchow, Morris
Object Type:
Report
System:
The UNT Digital Library
Cascade Investigation of Cooling Characteristics of a Castfinned Air-Cooled Turbine Blade for Use in a Turboprop Engine
Memorandum presenting an experimental investigation of the cooling characteristics of a small air-cooled turbine blade for use in a turboprop engine in a static cascade facility. Three test blades were studiued at three combustion-gas temperatures. Results regarding gas-flow conditions in cascade test section, correlation of temperature data, and application of correlated data to the typical engine are provided.
Date:
June 12, 1957
Creator:
Stepka, Francis S.; Richards, Hadley T. & Hickel, Robert O.
Object Type:
Report
System:
The UNT Digital Library
Summary of Subsonic-Diffuser Data
Memorandum presenting a review of the subsonic-diffuser data available in the literature, which is then reduced to certain appropriate performance coefficients and presented as functions of the significant geometric and flow variables. Results regarding total-pressure-loss factor, diffuser effectiveness, recovery of diffuser effectiveness in the tailpipe, inlet speed effects, exit flow distributions, boundary-layer control, and effects of distorted inlet velocity distribution are provided.
Date:
October 12, 1956
Creator:
Henry, John R.; Wood, Charles C. & Wilbur, Stafford W.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation at Subsonic and Supersonic Speeds of a Model of a Tailless Fighter Airplane Employing a Low-Aspect-Ratio Swept-Back Wing-Stability and Control
Memorandum presenting the results of a wind-tunnel investigation of the static stability and control characteristics of a model of a fighter airplane employing a low-aspect-ratio swept-back wing with trailing-edge elevons, a swept-back vertical tail, but no horizontal tail. The results indicated that, for the test conditions at which the investigation was conducted, the model, with elevons undeflected, was longitudinally and directionally stable.
Date:
January 12, 1953
Creator:
Smith, Willard G.
Object Type:
Report
System:
The UNT Digital Library
Free-flight Tests of 45 Deg Swept Wings of Aspect Ratio 3.15 and Taper Ratio 0.54 to Measure Wing Damping of the First Bending Mode and to Investigate the Possibility of Flutter at Transonic Speeds
Free flight tests of 45-deg swept wings of 3.15 aspect ratio and 0.54 taper ratio to measure wing damping and possible transonic flutter.
Date:
October 12, 1954
Creator:
O'Kelly, Burke R.; Lundstrom, Reginald R. & Lauten, William T., Jr.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic loadings associated with swept and unswept spoilers on a flat-plate at Mach numbers of 1.61 and 2.01
Report presenting an investigation at two Mach numbers to examine the flow, force, and moment characteristics associated with spoilers mounted on a flat plate at a range of sweep angles. Pressure measurements were obtained over the plate and spoiler faces. The pressures were integrated to determine the spoiler lift, pitching-moment, drag, and hinge-moment characteristics.
Date:
March 12, 1956
Creator:
Lord, Douglas R. & Czarnecki, K. R.
Object Type:
Report
System:
The UNT Digital Library