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  Partner: UNT Libraries
 Degree Discipline: Physics
 Collection: UNT Theses and Dissertations
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.
Contributing Partner: UNT Libraries
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.
Contributing Partner: UNT Libraries
Electron Transport in Bismuth at Liquid Helium Tempratures

Electron Transport in Bismuth at Liquid Helium Tempratures

Date: May 1964
Creator: Newell, James M.
Description: To obtain information on the band structure of bismuth, galvanomagnetic potentials were measured in a single crystal at liquid-helium and liquid-nitrogen temperatures. These measurements were analyzed for information on the different carriers, particularly for the existence of a high-mobility band of holes.
Contributing Partner: UNT Libraries
Size Effect in the Electrical Conductivity of Bismuth

Size Effect in the Electrical Conductivity of Bismuth

Date: August 1967
Creator: Vaughn, Bobby J.
Description: If a physical dimension of a metallic specimen is comparable with, or smaller than, the mean free path of the conduction electrons, then the observed electrical conductivity will be less than that of a conventional bulk sample. This phenomenon is called a size effect, and is the result of electron scattering from the specimen surfaces. In the present investigation, measurements were made on electropolished monocrystalline specimens ranging from matchbox geometry to thick-film geometry in order to obtain further information on the size effect in bismuth at liquid helium temperatures.
Contributing Partner: UNT Libraries
A Precision Angular Correlation Table and Calculation of Geometrical Correction Factors

A Precision Angular Correlation Table and Calculation of Geometrical Correction Factors

Date: January 1970
Creator: Rowton, Larry James
Description: In recent years y-y angular correlations have been very useful in confirming the spins of excited nuclear states. Angular correlation techniques have also been employed to study the electric and magnetic character of excited nuclear states. With these things in mind, it was decided to design, construct, and test a precision angular correlation table.
Contributing Partner: UNT Libraries
Recombination Rate Coefficient Measurements in the Helium Afterglow

Recombination Rate Coefficient Measurements in the Helium Afterglow

Date: August 1969
Creator: Wells, William E.
Description: This thesis describes a method of determining the recombination rate coefficient experimentally, which does not depend on a specific model of the recombination process. With this method established, results are presented for the recombination rate coefficient measurements at 44.6 Torr.
Contributing Partner: UNT Libraries
Temperature Dependence of Line Widths of the Inversion Spectra of Ammonia

Temperature Dependence of Line Widths of the Inversion Spectra of Ammonia

Date: August 1969
Creator: Cook, Charles E.
Description: One of the purposes of this work is to investigate modifications that have to be made to a standard source-modulation microwave spectrograph so that it can be used to study gases at various temperatures. Another objective in this work is to determine experimentally the function of temperature that describes how the line widths of microwave spectral lines vary with changing temperature. The most important segment of the study is the temperature dependence of the line width since from an accurate knowledge of this temperature dependence one is able to determine what molecular force fields are present and the relative importance of parts of the molecular force field.
Contributing Partner: UNT Libraries
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.
Contributing Partner: UNT Libraries
Measurement of the Atomic-oxygen Concentration under Simulated Upper Atmosphere Conditions

Measurement of the Atomic-oxygen Concentration under Simulated Upper Atmosphere Conditions

Date: January 1970
Creator: Grable, Weliko C.
Description: This thesis describes an experimental technique for measuring the atomic-oxygen concentration under simulated upper atmosphere conditions.
Contributing Partner: UNT Libraries
Monte Carlo Calculations of Reflected Intensities for Real Spherical Atmospheres

Monte Carlo Calculations of Reflected Intensities for Real Spherical Atmospheres

Date: January 1969
Creator: Montgomery, John A.
Description: To calculate the emergent radiation field, a realistic atmospheric model and algorithm must be developed. The radiation field may be characterized by the emergent intensities of scattered light. This is possible only if the algorithm determines these intensities as dependent upon atmospheric and angular parameters.
Contributing Partner: UNT Libraries