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  Access Rights: Public
  Partner: UNT Libraries
 Degree Discipline: Physics
 Degree Level: Master's
 Collection: UNT Theses and Dissertations
Absolute Beta Counting Using Thick Sources

Absolute Beta Counting Using Thick Sources

Date: 1950
Creator: Anderson, Miles E., 1926-
Description: The problem with which we shall concern ourselves in this paper is the self-scattering and self-absorption of beta particles by the source.
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Analyzing Magnet System for the Electrostatic Accelerator

Analyzing Magnet System for the Electrostatic Accelerator

Date: August 1954
Creator: Young, Thomas E.
Description: This thesis describes the design and construction of a linear accelerator, specifically, a positive-ion source, a high voltage supply, an accelerating column, and the necessary associated vacuum system.
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The Angular Distribution and Total Flux of Neutrons Obtained from the Deuterium-Tritium Reaction

The Angular Distribution and Total Flux of Neutrons Obtained from the Deuterium-Tritium Reaction

Date: 1956
Creator: Duggan, Jerome L.
Description: Mono-energetic neutrons have been produced with the low-voltage Cockroft-Walton accelerator at North Texas State College using two different reactions. It is the purpose of this paper to report the angular distribution and total flux of the neutrons obtained from the T(D,n) reaction.
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The Angular Distribution of the Deuterium-Deuterium Neutrons with 100 Kev Deuterons

The Angular Distribution of the Deuterium-Deuterium Neutrons with 100 Kev Deuterons

Date: 1956
Creator: Hackfield, Bobby J.
Description: It is the purpose of this paper to present the experimental techniques used in obtaining. 3.25 MeV neutrons from the H2(d,n)He3 reaction, as well as an analysis of the experimental data.
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Antiferromagnetic Ordering in Picryl-Amino-Carbazyl

Antiferromagnetic Ordering in Picryl-Amino-Carbazyl

Date: August 1964
Creator: Porter, Wilbur A.
Description: The purpose of the experiment was to investigate other paramagnetic salts to determine whether the W. B. perchlorate type peak was more common than previously suspected. An organic salt, picryl-n-amino-carbazyl, was chosen.
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Application of the Wigner Formalism to a Slightly Relativistic Quantum Plasma

Application of the Wigner Formalism to a Slightly Relativistic Quantum Plasma

Date: August 1967
Creator: Harper, John H.
Description: A slightly relativistic fermion gas is described by the dynamical theory obtained from the Wigner distribution function. The problem is approached in a self-consistent manner including the two-body Darwin Hamiltonian. The goal is to find the departures from equilibrium and dispersion relations for wave propagation in the gas.
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Automatic Frequency Control of Microwave Radiation Sources

Automatic Frequency Control of Microwave Radiation Sources

Date: August 1979
Creator: Payne, Bobby D.
Description: Resonant cavity controlled klystron frequency stabilization circuits and quartz-crystal oscillator frequency stabilization circuits were investigated for reflex klystrons operating at frequencies in the X-band range. The crystal oscillator circuit employed achieved better than 2 parts in 10 in frequency stability. A test of the functional properties of the frequency standard was made using the Stark effect in molecules.
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Backscattering from Prolate Spheroids at Microwave Frequencies

Backscattering from Prolate Spheroids at Microwave Frequencies

Date: 1956
Creator: Sybert, Jim
Description: This thesis examines backscattering from prolate spheroids at microwave frequencies.
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Boundary Scattering of Electrons in Thin Cadmium Single Crystals

Boundary Scattering of Electrons in Thin Cadmium Single Crystals

Date: August 1968
Creator: Fortmayer, Gary William
Description: In the present investigation, zinc was plated onto a cadmium crystal to determine the effect on the scattering parameter.
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A Calculation of the Kaon-Neutron Scattering Cross Section

A Calculation of the Kaon-Neutron Scattering Cross Section

Date: June 1966
Creator: Hooper, Robert Gibson
Description: The purpose of this investigation was to study the scattering processes of K+ mesons with neutrons. In order to do such a study one must first make certain basic assumptions about the type of interaction involved and then proceed to calculate physically meaningful qualities which describe the processes. Thus, the problem is this: assuming the validity of Feynman's rules for these strongly interacting particles, calculate the differential and total scattering cross sections for the interaction of scalar K+ mesons and neutrons.
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Carbon Contamination Measurements in Single Silicon Crystals

Carbon Contamination Measurements in Single Silicon Crystals

Date: December 1970
Creator: Logsdon, Lawrence E.
Description: The intent of this investigation was to directly measure the amount of carbon contamination in a single silicon crystal and, in so doing, develop a mathematical procedure that would be applicable to other contaminants in other substances.
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The Classical Limit of Quantum Mechanics

The Classical Limit of Quantum Mechanics

Date: December 1977
Creator: Hefley, Velton Wade
Description: The Feynman path integral formulation of quantum mechanics is a path integral representation for a propagator or probability amplitude in going between two points in space-time. The wave function is expressed in terms of an integral equation from which the Schrodinger equation can be derived. On taking the limit h — 0, the method of stationary phase can be applied and Newton's second law of motion is obtained. Also, the condition the phase vanishes leads to the Hamilton - Jacobi equation. The secondary objective of this paper is to study ways of relating quantum mechanics and classical mechanics. The Ehrenfest theorem is applied to a particle in an electromagnetic field. Expressions are found which are the hermitian Lorentz force operator, the hermitian torque operator, and the hermitian power operator.
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A Computer Analysis of Complex Gamma-Ray Spectra

A Computer Analysis of Complex Gamma-Ray Spectra

Date: August 1965
Creator: Cunningham, William K.
Description: The purpose of this investigation was to provide a method for determining the relative intensities of all gamma rays in a particular spectrum, and thereby determine the relative transition probabilities.
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A Continuously Sensitive Cloud Chamber

A Continuously Sensitive Cloud Chamber

Date: 1951
Creator: Hughes, James E.
Description: A continuous cloud chamber would be a valuable asset to laboratory work in nuclear and atomic physics. For this reason the construction and investigation of a continuously sensitive diffusion cloud chamber has been undertaken. It is the purpose of this paper to report the design and operating characteristics of such a chamber.
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A Correction Factor for the First Born Approximation

A Correction Factor for the First Born Approximation

Date: January 1965
Creator: Russell, Jerry Brent
Description: This thesis looks at a Schroedinger equation and the Born approximation.
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Cross-Section at 15.6 and 16.1 MeV

Cross-Section at 15.6 and 16.1 MeV

Date: May 1969
Creator: Pepper, George H.
Description: The intent of this investigation is the determination of the values of the Cs-133 (n,2n)Cs-132 cross-section at neutron energies of 15.6 and 16.1 MeV. Neutrons of this energy are produced with comparative ease by means of the D-T reaction, in which deuterons of energy 500 and 750 keV, respectively, are impingent upon a tritium target.
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Cross Section for the 165/Ho (n, 2n) 164/Ho Reaction at 15.6 MeV

Cross Section for the 165/Ho (n, 2n) 164/Ho Reaction at 15.6 MeV

Date: August 1969
Creator: Lear, Richard D.
Description: It was the purpose of this investigation to bring together the ideas and procedures involved in the measurement of (n, 2n) reaction cross sections. Some of the inherent properties of the material under investigation (Holium) are involved in determining these relationships.
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Cross Section Measurements in Praseodymium-141 as a Function of Neutron Bombarding Energy

Cross Section Measurements in Praseodymium-141 as a Function of Neutron Bombarding Energy

Date: May 1971
Creator: Marsh, Stephen Addison
Description: Using the parallel disk method of activation analysis, the (n,2n) reaction cross section in 141-Pr was measured as a function of neutron energy in the range 15.4 to 18.4 MeV. The bombarding neutrons were produced from the 3-T(d,n)4-He reaction, where the deuterons were accelerated by the 3-MV Van de Graff generator of the North Texas Regional Physics Laboratory in Denton, Texas.
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Crystalline Polymorphism of Nitrates

Crystalline Polymorphism of Nitrates

Date: 1951
Creator: Shepherd, Jimmie G.
Description: The purpose of this study was to investigate the polymorphism of a group of related compounds. Special emphasis was placed upon the temperature at which transitions occurred and a possible correlation of these temperatures with other properties of the compounds.
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D-D and D-T Neutron Excitation of Energy Levels in Cs133

D-D and D-T Neutron Excitation of Energy Levels in Cs133

Date: January 1961
Creator: Dawson, Horace Ray
Description: The purpose of this experiment was to make positive assignment of the Cs133 energy levels excited by the inelastic scattering of neutrons.
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A Decay Scheme for 164 Ho

A Decay Scheme for 164 Ho

Date: December 1972
Creator: Guertin, James
Description: The present investigation was prompted by several considerations. In previous studies there was considerable variance with regard to the reported values for the half-lives of the isomeric and ground states in 164 Ho. There was also considerable variance with regard to the values reported for the branching ratios and the relative intensities of the transitions. Thus a further study of the problem was needed.
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Design and Construction of a Positive Radio-Frequency Ion Source for the Production of Negative Ions

Design and Construction of a Positive Radio-Frequency Ion Source for the Production of Negative Ions

Date: August 1958
Creator: Thompson, B. Cecil
Description: It is the purpose of this paper to present a detailed account of the design and construction of this positive-ion source and associated equipment.
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Design and Testing of a Coincidence System

Design and Testing of a Coincidence System

Date: January 1961
Creator: Barnes, W. L., Jr.
Description: This paper is concerned with the design, testing and performance of a coincidence system, the proposed North Texas State College accelerator.
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Design and Testing of a Corona Column and a Closed Gas Distribution System for a Tandem Van de Graaff Voltage Generator

Design and Testing of a Corona Column and a Closed Gas Distribution System for a Tandem Van de Graaff Voltage Generator

Date: June 1962
Creator: Gray, Thomas Jack
Description: The purpose of this study had been to design and test a corona column and an insulating gas distribution system for a small tandem Van de Graaff. The intent of this paper is to describe the gas handling system and to compare experimentally the effects of corona electrode shape on the corona current carried between adjacent sections of the column.
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