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 Degree Discipline: Physics
Gamma Ray Response of a CsI(T1) Crystal to 14 Mev Neutrons

Gamma Ray Response of a CsI(T1) Crystal to 14 Mev Neutrons

Date: August 1958
Creator: Young, Jack Carter
Description: The purpose of this paper is to study the possible excited states in the nucleus of Cs133. At North Texas State College a 100-Kev Cockcroft-Walton accelerator has been constructed for use as a neutron source for exciting various nuclei and for studying the gamma spectra obtained to determine their energy levels.
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Gamma Rays from Neutron Excitation of Cs133

Gamma Rays from Neutron Excitation of Cs133

Date: January 1959
Creator: Lamb, Billy Leonard
Description: This thesis explores gamma rays from neutron excitation of Cs133.
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Magnetic Resonance of Protons in the Earth's Magnetic Field

Magnetic Resonance of Protons in the Earth's Magnetic Field

Date: August 1959
Creator: Crosby, Richard Hill
Description: The purpose of the work reported here was to determine the feasibility of applying the nuclear induction technique of Bloch to the direct observation of nuclear magnetic resonance in the very weak magnetic field of the earth.
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Quaternion Representation of Crystal Point Groups

Quaternion Representation of Crystal Point Groups

Date: August 1959
Creator: West, Richard Harrison
Description: The physical behavior of crystalline solids is very closely related to the internal symmetry of the crystal structure. For this reason it is desirable to represent mathematically this symmetry in such a way that the actual physical problems can be handled as they arise. In the case of this thesis the research has been guided by a list of desired properties for such a representation. No claim is made that the list is complete.
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A System for Measurement of Negative-Ion Charge-Exchange Cross Sections

A System for Measurement of Negative-Ion Charge-Exchange Cross Sections

Date: January 1960
Creator: Wingo, Dale T.
Description: A radio-frequency positive-ion source and a fifty-kilovolt linear accelerator were designed and constructed in order to produce sizable quantities of hydrogen, helium, nitrogen, neon, and argon. Plans were then made to equip this ion source with charge-exchange apparatus suitable for charge-exchange cross-sectional measurements. It is the purpose of this paper to present the design of the equipment and to present operational knowledge of the equipment and of ion beams which are producible.
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Gamma Rays from Cs¹³³ by Inelastic Scattering of Neutrons

Gamma Rays from Cs¹³³ by Inelastic Scattering of Neutrons

Date: August 1960
Creator: McDonald, Perry Frank
Description: The purpose of this investigation was to observe the excited states of the Cs¹³³ nucleus when neutrons are inelastically scattered from the nucleus.
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Stochastic Mechanical Systems

Stochastic Mechanical Systems

Date: August 1960
Creator: Bost, Robert Berton
Description: To understand the phenomena associated with such stochastic processes and to predict, at least qualitatively, the behavior of mechanical systems within environments which are completely random in time, new mechanical tools are necessary. Fortunately, the derivation of these tools does not necessitate a complete departure from existing theories. In fact, they may be considered as an extension of the well-defined theory of the integral transform, in particular, the exponential Fourier integral transform.
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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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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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Quaternion Representation of Crystal Space Groups

Quaternion Representation of Crystal Space Groups

Date: January 1961
Creator: Hufstetler, Thomas Jerry
Description: This investigation is designed to find quaternion operators which will generate selected space groups and which are more convenient to manipulate in some important types of problems.
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Dynamical Friction Coefficients for Plasmas Exhibiting Non-Spherical Electron Velocity Distributions

Dynamical Friction Coefficients for Plasmas Exhibiting Non-Spherical Electron Velocity Distributions

Date: August 1961
Creator: Williams, G. Bruce
Description: This investigation is designed to find the net rate of decrease in the component of velocity parallel to the original direction of motion of a proton moving through an electron gas exhibiting a non-spherical velocity distribution.
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Energy Losses of Protons Projected through a Plasma Due to Collisions with Electrons of the Plasma for a Variety of Non-Maxwellian Electron Velocity Distributions

Energy Losses of Protons Projected through a Plasma Due to Collisions with Electrons of the Plasma for a Variety of Non-Maxwellian Electron Velocity Distributions

Date: August 1961
Creator: Kregel, Mark Douglas
Description: The purpose of this thesis is to study energy losses suffered by protons in traversing a plasma through collision with the electrons of the plasma. For these electrons a variety of non-Maxwellian velocity distributions are assumed.
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A Study of Emitter Drift in Transistors

A Study of Emitter Drift in Transistors

Date: August 1961
Creator: Malone, Farris Douglas
Description: The purpose of this investigation was to determine the parameters of emitter drift and to suggest a mechanism for this phenomenon.
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Nuclear Magnetic Resonance in Hydrated Crystals - Potassium Oxalate Monohydrate

Nuclear Magnetic Resonance in Hydrated Crystals - Potassium Oxalate Monohydrate

Date: May 1962
Creator: Mason, Charley Mack
Description: The problem of this study was the measurement of the proton-proton separation in the water molecule of hydration in a single crystal of potassium oxalate monohydrate.
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Proton Nuclear Magnetic Resonance in Mica

Proton Nuclear Magnetic Resonance in Mica

Date: May 1962
Creator: Townsend, Don H.
Description: The experiments to be described here were undertaken for the purpose of determining, if possible, by NMR techniques whether or not the hydroxyl protons in mica are bound in a regular crystalline array, and, if so, whether or not the hydroxyl protons occur in reasonably isolated pairs as in waters of hydration.
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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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Magnetic Susceptibility of a Crystalline Free Radical

Magnetic Susceptibility of a Crystalline Free Radical

Date: June 1962
Creator: Smith, William C.
Description: The entirety of the investigation discussed in this paper was confined to a study of the spin resonance properties of unpaired electrons of an organic free radical. In the remainder of the paper the theory of electron spin resonance, the apparatus used in the investigation, and the experimental results obtained are discussed in that order.
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Some Galvanomagnetic and Thermomagnetic Effects in a Single Crystal of Antimony

Some Galvanomagnetic and Thermomagnetic Effects in a Single Crystal of Antimony

Date: August 1962
Creator: Parker, Donald L.
Description: The purpose of this investigation is to develop techniques of experimentation in the field of electron transport phenomena.
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A Vacuum Tube for an Electrostatic Accelerator

A Vacuum Tube for an Electrostatic Accelerator

Date: June 1963
Creator: Wiley, Ralph
Description: The purpose of this study has been to design a prototype accelerating tube, to determine the correct point shape and spacing needed to produce corona current along the tube for the case of negative-point-to-positive-plane discharge, and to study the voltage-gradient characteristics of short sections of the tube when they were evacuated to a low internal pressure.
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Magnetically Driven Instabilities in Gas Discharges

Magnetically Driven Instabilities in Gas Discharges

Date: August 1963
Creator: Choate, Jimmie W.
Description: In the present experiment a gas discharge plasma generator was designed and constructed and a search was made for evidence of a plasma instability due to the influence of an externally applied magnetic field. The evidence for such an unstable mode of operation is too indirect to make a possible conclusion, but an approach to more certain identification will be indicated.
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The Use of Mossbauer Effect for the Study of Recoilless Rayleigh Scattering of Low-Energy Gamma Rays from Sodium Chloride

The Use of Mossbauer Effect for the Study of Recoilless Rayleigh Scattering of Low-Energy Gamma Rays from Sodium Chloride

Date: August 1963
Creator: Fowler, Eugene Franklin
Description: Evidence that recoilless emission and absorption exist may be shown by an experiment in which the source gamma rays are allowed to pass through a suitable absorber to a detector.
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Extinguishment of a Low-pressure Argon Discharge by a Magnetic Field

Extinguishment of a Low-pressure Argon Discharge by a Magnetic Field

Date: January 1964
Creator: Criswell, David Russell
Description: The experiment in this study involves the extinguishment of a low-pressure argon discharge by a magnetic field.
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Thermal Properties of a Single Crystal of Bismuth at Liquid-helium Temperatures

Thermal Properties of a Single Crystal of Bismuth at Liquid-helium Temperatures

Date: January 1964
Creator: Alsup, Dale Lynn
Description: The purpose of this investigation was the determination of the thermal conduction properties of a single crystal of bismuth at liquid-helium temperatures in magnetic fields up to eighteen kilogauss.
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Thermomagnetic Phenomena in Antimony at Liquid Helium Temperatures

Thermomagnetic Phenomena in Antimony at Liquid Helium Temperatures

Date: January 1964
Creator: Haywood, Charles Thomas
Description: The purpose of this investigation was to study head-transport phenomena in a single crystal of antimony at liquid helium temperatures. In particular, the longitudinal and transverse components of the thermal resistivity tensor were measured as a function of magnetic field up to eighteen kilogauss.
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