A Method for Calculating Foil Depression Factors (open access)

A Method for Calculating Foil Depression Factors

As disc-shaped detectors are one of the primary means of measuring the neutron density, a better solution is desirable if the error due to the depression factor is to be made negligible. In this paper, an attempt is made to solve this problem in the oblate spheroidal co-ordinate system which most nearly describes the disc-shaped detector, so that solutions may be obtained that describe depression factors for detectors of varying thicknesses and radii.
Date: June 1953
Creator: Workman, Billy J.
System: The UNT Digital Library
Foil Depression Factors for Disc-shaped Detectors (open access)

Foil Depression Factors for Disc-shaped Detectors

The generalized data which are presented in this thesis are the culmination of the determination of the foil depression factor using oblate spheroidal coordinates.
Date: June 1954
Creator: Gallagher, Tom Lewis
System: The UNT Digital Library
Design and Testing of a Corona Column and a Closed Gas Distribution System for a Tandem Van de Graaff Voltage Generator (open access)

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

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.
Date: June 1962
Creator: Gray, Thomas Jack
System: The UNT Digital Library
Magnetic Susceptibility of a Crystalline Free Radical (open access)

Magnetic Susceptibility of a Crystalline Free Radical

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.
Date: June 1962
Creator: Smith, William C.
System: The UNT Digital Library
A Vacuum Tube for an Electrostatic Accelerator (open access)

A Vacuum Tube for an Electrostatic Accelerator

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.
Date: June 1963
Creator: Wiley, Ralph
System: The UNT Digital Library
A Calculation of the Kaon-Neutron Scattering Cross Section (open access)

A Calculation of the Kaon-Neutron Scattering Cross Section

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.
Date: June 1966
Creator: Hooper, Robert Gibson
System: The UNT Digital Library
Galvanomagnetic Phenomena in Arsenic at Liquid Helium Temperatures (open access)

Galvanomagnetic Phenomena in Arsenic at Liquid Helium Temperatures

The purpose of this investigation was to study some of the transport effects in a single crystal of arsenic at liquid helium temperatures in a magnetic field up to twenty-four kilogauss. The experimental coefficients determined were the isothermal magnetoresistivity and the isothermal Hall resistivity.
Date: June 1966
Creator: Yarbrough, Jack Lee
System: The UNT Digital Library
Effect of Sample Geometry on Magnetomorphic Oscillations in the Hall Effect in Cadium at Liquid-Helium Temperatures (open access)

Effect of Sample Geometry on Magnetomorphic Oscillations in the Hall Effect in Cadium at Liquid-Helium Temperatures

This thesis presents observations on size-effect oscillations in the Hall effect in an oriented single crystal of highly pure cadmium at liquid-helium temperatures. All measurements were made in transverse magnetic field.
Date: June 1967
Creator: Fielder, James Thomas
System: The UNT Digital Library
The Optimum Design of a Broad-band Helix for Use in Electron Spin Resonance (open access)

The Optimum Design of a Broad-band Helix for Use in Electron Spin Resonance

This thesis examines optimum designs for broad-band helix to be used in electron spin resonance.
Date: June 1967
Creator: Garlow, John R.
System: The UNT Digital Library
A Study of the Celestial Gamma-ray Flux (open access)

A Study of the Celestial Gamma-ray Flux

This thesis is a study of the celestial gamma-ray flux. It reviews several of the proposed mechanisms for producing high energy gamma rays and describes several of the attempts to detect their presence. Also included is a short historical review of the spark chamber, along with a qualitative description of its operation.
Date: June 1967
Creator: Keath, Edwin P. (Edwin Paul), 1938-
System: The UNT Digital Library