An 8-Matrix Theory of the Vertex p - NN Based on the Strip Approximation (open access)

An 8-Matrix Theory of the Vertex p - NN Based on the Strip Approximation

The present study was motivated by an attempt to understand low energy [formula] scattering within the framework of the bootstrap principle and the un-Reggeized version of the strip approximation. This work attempts to generate low energy [formula] scattering in the p(1,1) and p(3,3) states assuming the potential operating in these states is generated by the exchange of low mass meson states in the crossed t-channel and low mass baryon states in the crossed u channel. In particular, the p-meson is kept in channel t; the p mass and the coupling of [formula] and [formula] appear as parameters. The parameters of the nucleon and (3,3) poles are taken as the elements to be determined by self-consistency.
Date: May 1964
Creator: Sarkissian, M. Der
System: The UNT Digital Library
Absorption Characteristics of Long Soil Columns (open access)

Absorption Characteristics of Long Soil Columns

The purpose of this report is to present the information obtained relative to the characteristic adsorption of radioisotopes in a long (forty feet) laboratory soil column treated with a high salt, process waste of high activity density. The movement of adsorbed cations in a soil column subjected to prolonged leeching by water also was determined.
Date: May 1, 1955
Creator: McHenry, J. R.
System: The UNT Digital Library
The Absorption Spectrum of Hydrated Americium Chloride (open access)

The Absorption Spectrum of Hydrated Americium Chloride

The following document focuses on the study of the absorption spectra of americium chloride. Large samples and a spectrograph of great dispersion were used.
Date: May 2, 1952
Creator: Stover, Betsy Jones & Conway, John G.
System: The UNT Digital Library
Amplitude and Phase Functions for the Revised Parameters of the Cambridge Electron Accelerator (open access)

Amplitude and Phase Functions for the Revised Parameters of the Cambridge Electron Accelerator

"The phase and amplitude functions describing the betatron oscillations in the synchrotron are calculated using the revised parameters of the Cambridge Electron Accelerator. The results are given numerically and plotted in a graph for one machine period."
Date: May 27, 1957
Creator: Lanza, G.
System: The UNT Digital Library
Aluminum Alloy Work at Hanford (open access)

Aluminum Alloy Work at Hanford

Investigation of aqueous and steam corrosion at elevated temperature has been carried on at Hanford for several tears. A number of reports have been published on various phases of the corrosion program but, except for monthly reports, little has been written on the progress of the Corrosion and Coatings Operation alloy development program. This interim report will outline the more important current phases of the aluminum alloy program.
Date: May 6, 1960
Creator: Bowen, H. C.
System: The UNT Digital Library
Amendment No. 1 to Preliminary Hazards Summary Report For The Dresden Nuclear Power Station (open access)

Amendment No. 1 to Preliminary Hazards Summary Report For The Dresden Nuclear Power Station

Commonwealth Edison Company for the purpose of supplementing the license application for the Dresden Nuclear Power Station submits herewith Amendment No.1 to the portion of the Final Hazards Summary Report entitled Preliminary Hazards Summary Report.
Date: May 26, 1958
Creator: Commonwealth Edison Company
System: The UNT Digital Library
Analysis for Oxide in Thorium Metal (open access)

Analysis for Oxide in Thorium Metal

Abstract. to estimate the oxygen picked up by thorium in casting a rapid method of running the acid insoluble content was developed. the quickest procedure consists of reacting with mixed acids, fuming with perchloric and filtration to separate the "free" thorium from the "combined". The precipitate is ignited and weighed as thorium dioxide.
Date: May 12, 1945
Creator: Ayers, A. S.
System: The UNT Digital Library
Analysis of Heavy Water by Equilibration (open access)

Analysis of Heavy Water by Equilibration

Technical report discussing that the deuterium concentration of heavy water can be determined by equilibrating the water with deuterium gas in the presence of a catalyst with subsequent analysis of the equilibrated gas on the mas spectrometer. The apparatus for equilibration analyses maybe be considered in three parts: 1) apparatus for introducing the ingredients into the reaction chambers; 2) the reaction chambers; 3) the mass spectrometer for analysis of the equilibrated gas. The isotopic composition of the deuterium gas to be used as the starting material is primarily governed by what gases are available. In general it is best to use gas within about one percent on either side of the final equilibrium composition. No reaction takes place between deuterium gas and water molecules in the absence of a catalyst. Platinum oxide is used as the catalyst.
Date: May 15, 1945
Creator: Fischer, R. B.; Potter, R. A. & Voskuyl, R. J.
System: The UNT Digital Library
Analysis of High Purity Water by Spectrochemistry (open access)

Analysis of High Purity Water by Spectrochemistry

When water is used as a coolant in any heat-producing process, the purity of the cooling water is of considerable importance, both from the standpoint of build-up of deposited solids inside the cooling tubes, and as an indication of corrosion of the tubes or any other materials with which the water comes in contact. The first problem has long been recognized, and is generally solved by pretreatment of the water. Efficient treatment can reduce the total solids content to less than 0.1 ppm, and the concentration of individual elements to the order of 0.01 ppm. If water of this purity is used, the analysis of the input and output stresses can result in some useful information. The input stream analysis, of course, is direct measure of the quality of the original cooling water, and frequent analysis by a reasonably fast method can be used to keep pretreatment under control. But of even greater significance is the difference in the impurity content of input and output streams. In a simple, straight-through system the difference generally will be negligible. If a closed, recirculating system is considered, however, with the coolant water circulating through the process to be cooled and then through a …
Date: May 7, 1956
Creator: Daniel, J. L. & Ko, R.
System: The UNT Digital Library
The Analysis of Impurities in Various Stages of Recycled Carbon Tetrachloride and Correlation with Chlorination Properties (open access)

The Analysis of Impurities in Various Stages of Recycled Carbon Tetrachloride and Correlation with Chlorination Properties

The following report discusses findings resulting from experiments on recycled carbon tetrachloride at various stages of the proposed purification process.
Date: May 23, 1946
Creator: Hudson, R. L.; Burkhart, L. E. & Larson, C. E.
System: The UNT Digital Library
Analysis of Six-Bar Linkage Using Digital Computer (open access)

Analysis of Six-Bar Linkage Using Digital Computer

Summary. The analysis of the motion of a six-bar linkage is difficult because of the large number of variables involved and the large number of calculations that have to be made for each position of the linkage. If a digital computer is used to make the calculations required for a multi-position analysis of a mechanism, it is feasible to design by analyzing a large numbers of similar linkages and selecting the optimum configuration. In this paper expressions have been derived for the output angle as a function of the input angle and the transmission angle as a function of the input angle for any single-degree-of-freedom six-bar linkage for which the parameters are known An example showing the usefulness of a six-bar computer program as a mechanism design tool is discussed.
Date: May 20, 1960
Creator: Dunk, A. C. & Hanson, C. L.
System: The UNT Digital Library
Analytical Chemistry Division Semiannual Progress Report For Period Ending April 20,1955 (open access)

Analytical Chemistry Division Semiannual Progress Report For Period Ending April 20,1955

The development of ionic methods for the determination of corrosion products in the highly radioactive Homogeneous Reactor (HR) fuels has been of major interest in the work of the Ionic Analyses Laboratory. Methods for the spectrophotometric determination of aluminum and for the polarographic determination of iron in HR fuels have been developed. The polarographic determination of molybdenum in uranyl sulfate solutions was studied. A polarographic method for the determination of zinc was developed. A fluorometric method for the determination of microgram amounts of fluoride was studied. Three organic reagents were investigated as precipitants for microgram quantities of zirconium in HR fuel. The automatic photometric titration technique was applied to the determination of thorium and of sulfate. A method was developed for the ionexchange separation and potentiometric titration of cobalt. The ultraviolet absorption spectra of technetium and rhenium were studied.
Date: May 6, 1955
Creator: Kelley, M. T.; Susano, C. D. & Raaen, H. P.
System: The UNT Digital Library
The ANCO System for Boron Isotope Enrichment Progress Report for Period Ending September 20, 1955 (open access)

The ANCO System for Boron Isotope Enrichment Progress Report for Period Ending September 20, 1955

A new gas-liquid countercurrent system (the ANCO system from Anisole-Complex) for the enrichment of boron isotopes has been developed. It is believed that use of this systems will result in a considerably lower unit cost for enriched boron-10 than was previously possible. The system utilizes the exchange reaction between BF3 (gas) and BF3·anisole (liquid) to concentrate boron-10 in the liquid phase. The single stage isotopic separation factor for this system has been found to vary from 1.039 at 0°C to 1.029 at 30°C. The isotopic exchange reaction has been shown to be rapid. Vapor pressures of the complex as a function of temperature have been measured and the heat of formation of the complex determined. Laboratory experiments show that quantitative removal of the BF3 from the complex can be accomplished by heating. A complete miniature ANCO plant was constructed and operated in the laboratory to test the feasibility of the system. The system was found to operate efficiently with a minimum of attention, and to enrich the isotopes of boron as expected. Based upon the experience obtained with the laboratory ANCO unit, a pilot plant large enough to utilize a 6-inch diameter exchange column was designed. The design calculations of …
Date: May 1, 1956
Creator: Healy, R. M.; Joseph, K. F. & Palko, A. A.
System: The UNT Digital Library
Angular Distribution of Fragments from Neutron-Induced Fission (open access)

Angular Distribution of Fragments from Neutron-Induced Fission

The angular distribution of fission fragments from the neutron-induced fission of several isotopes has been studied. Distributions were observed for thermal neutrons on U233 and U235, Lady Godiva leakage neutrons on U235 and U238, and 14 Mev neutrons on U233, U235, U238, Th232, and Np237. No anisotropy was observed for thermal neutron fission, whereas for Lady Godiva neutrons and 14 Mev neutrons the probability of fission along the axis of the neutron beam was determined to be higher than for fission in the orthogonal direction. Experimental results are given on pages 10 and ll.
Date: May 7, 1953
Creator: Brolley, John Edward, 1919- & Dickinson, W. C.
System: The UNT Digital Library
Application of Boron Carbide Nickel Dispersion to a Prototype Control Rod (open access)

Application of Boron Carbide Nickel Dispersion to a Prototype Control Rod

Previously reported results on the testing of small samples of boron carbide dispersed in nickel by electrolytic codeposition were adequately encouraging to lead to the development of a prototype control rod for operation in the Vallecitos Boiling Water Reactor. The operation of the control rod has been entirely satisfactory.
Date: May 1962
Creator: Williamson, H.E. & Alexander, A. J.
System: The UNT Digital Library
Artificial Cooling of the Columbia River By Dam Regulation Part 1 (open access)

Artificial Cooling of the Columbia River By Dam Regulation Part 1

In early July, 1958, it appeared that Columbia River temperature at HAPO would be near 24.5ºC by the end of August. River temperature were averaging 4º to 5º above 1957 figures and were 3º to 4º above the ten year highs. It seemed desirable to examine the problem to determine if any corrective measure could be taken, since it was apparent that production losses were imminent.
Date: May 25, 1959
Creator: Kramer, H. A.
System: The UNT Digital Library
Avalanche Transistor Switching (open access)

Avalanche Transistor Switching

Introduction. High voltage silicon mass transistors have the ability to perform circuit functions similar to the gas thyratron tube. Upon being triggered the transistor junction breaks down, or "avalanches", and can conduct a large current for a short time. The rise time of the avalanche breakdown pulse can be short, and the delay between triggering and avalanching can be short and very consistent. This avalanche action is non-destructive if the amount of peak and average power being dissipated at the junction is limited by the circuitry.
Date: May 6, 1960
Creator: Rufer, Richard P.
System: The UNT Digital Library
The Ball Tuner Change Tables (open access)

The Ball Tuner Change Tables

Technique used in deriving values of the linac ball tuner settings to produce various fields is discussed briefly, and tables showing ball tuner change numbers and values used in making up the ball tuner change numbers are given.
Date: May 3, 1962
Creator: Walters, J. L.
System: The UNT Digital Library
Bibliography of Reports Relating to Project Sherwood (Controlled Thermonuclear Reactions) Written at University of California Radiation Laboratory, Livermore and Berkeley : 1953-1957 (open access)

Bibliography of Reports Relating to Project Sherwood (Controlled Thermonuclear Reactions) Written at University of California Radiation Laboratory, Livermore and Berkeley : 1953-1957

"This bibliography is a compilation of titles to unclassified reports, journal articles and conference papers written by members of the University of California Radiation Laboratory, Livermore and Berkeley, relating to Project Sherwood (Controlled Thermonuclear Reactions) from 1953 through 1957."
Date: May 1, 1958
Creator: Frost, Frederick E.
System: The UNT Digital Library
A Bibliography on Factors Effecting the Motion of the Artificial Earth Satellite (open access)

A Bibliography on Factors Effecting the Motion of the Artificial Earth Satellite

"This bibliography is a list of references pertaining to factors affecting the motion of the artificial earth satellite. References are foreign and domestic literature."
Date: May 20, 1958
Creator: Frost, Frederick E.
System: The UNT Digital Library
The Biologic Effects of Radiation ; Training Program Lecture Notes (open access)

The Biologic Effects of Radiation ; Training Program Lecture Notes

The following report provides data taken from investigations on radiation and the different biologic effects on it.
Date: May 17, 1943
Creator: Cantril, Simeon T.
System: The UNT Digital Library
Boundary Disturbances in High Explosive Shock Tubes (open access)

Boundary Disturbances in High Explosive Shock Tubes

From abstract: High velocity disturbances are observed to propagate along the walls of a high explosive operated shock tube in advance of the plane shock. Experiments are presented which determine the dependence of the geometry, energy, and velocity of the disturbance on such variables as the gas contained in the shock tube, the shock strength, and the roughness and composition of the supporting boundary. A model is constructed to explain the flow within the disturbance. Arguments are presented which show the disturbance to result from radiation originating in the luminous plane shock...The purpose of this paper is to present the results of initial investigations made in an effort to describe the phenomenon of strong shocks developed in a shock tube by the detonation of high explosive charge.
Date: May 26, 1952
Creator: Shreffler, R. G. & Christian, R. H.
System: The UNT Digital Library
Braze Alloys v.s. Atmospheres : Final Report Project 1325 (open access)

Braze Alloys v.s. Atmospheres : Final Report Project 1325

Summary. At the time this project was initiated, all brazing had been confined to small retorts of ten cubic feet capacity or less. Larger assemblies were scheduled which required retorts of over 100 cubic feet capacity. Hydrogen atmospheres had given the best results, however, there was considerable reluctance to use hydrogen in these large retorts from a safety standpoint. It was thought that thru the use of PMC 2252, an argon - 2 1/2% hydrogen gas atmosphere which in non-explosive, sufficient cleaning action might be attoined without the inherent hazards encountered with hydrogen. An investigation of the argon - 2 1/2% hydrogen gas as a brazing atomosphoer
Date: May 21, 1959
Creator: Rogers, S. L.
System: The UNT Digital Library
Braze Ring Mold for Sintering & Casting (open access)

Braze Ring Mold for Sintering & Casting

Technical report of an investigation to determine a suitable material for sintering and casting of braze rings. Braze rings afford an excellent means of preplacing braze alloy on tube to head joints of radiators, heat exchangers, and similar applications. A cast ring is especially desirable because of its increased strength. Previous efforts at casting had used welding grade carbon blocks with the desired ring cavities machined into their surface. Conclusion: Stackpole grade 331 electro-graphite provided the best results of the materials investigation. It is hard and more readily machinable with conventional tools than other grades. Carbon, in general, proved to be more satisfactory especially due its ease and speed of fabrication.
Date: May 14, 1959
Creator: Rogers, S. L.
System: The UNT Digital Library