Degree Level

Contained Nuclear Detonations in Four Media - Geological Factors in Cavity and Chimney Formation (open access)

Contained Nuclear Detonations in Four Media - Geological Factors in Cavity and Chimney Formation

Recent underground nuclear tests conducted by the U.S. Atomic Energy Commission have yielded data on the effects of contained nuclear explosions in four rock mediums: tuff, alluvium, rock salt, and granite. This report presents and compares data obtained primarily through exploratory mining and drilling into the postshot environment of 35 such events.
Date: April 24, 1964
Creator: Boardman, Charles R.; Rabb, David D. & McArthur, Richard D.
Object Type: Report
System: The UNT Digital Library
Double Meson Production In Proton-Deuteron Collisions. II (open access)

Double Meson Production In Proton-Deuteron Collisions. II

In a previous publication we reported measurements of the momentum spectra of He<sup>3 and H<sup>3 nuclei produced in collisions of 740-MeV protons with deuterium. The He<sup>3 spectrum exhibited an anomaly in the form of a peak in the region corresponding to double pion production. For reactions resulting in a He<sup>3 the two pions (or particle) can be isotopic spin states 0 or 1; if a H<sup>3 nucleus results only 1 = 1 is allowed. We have since repeated the experiment with a new arrangement which enabled us to measure both the He<sup.3 and H<sup>3 spectra with improved resolution and accuracy.
Date: August 1961
Creator: Booth, Norman E.; Abnashian, Alexander & Crowe, Kenneth M.
Object Type: Report
System: The UNT Digital Library
The Anatomy of Plasmons (open access)

The Anatomy of Plasmons

From abstract: "Plamons (plasma-magnetic entities) are toroidal "packages" of plasma wrapped up in their own magnetic field. Experimental evidence for the existence of plasmons is adduced and theoretical considerations concerning their various types and their stability are discussed."
Date: November 15, 1955
Creator: Bostick, W. H.
Object Type: Report
System: The UNT Digital Library
Gravitational-Electromagnetic Torus Models of the Elementary Particles (open access)

Gravitational-Electromagnetic Torus Models of the Elementary Particles

Abstract: "A torus model of the elementary particles is suggested in which the electron and proton are made stable by gravitational forces derived from the electromagnetic field. It is suggested that the gravitational forces for the unstable particles, presumably the mesons, are not sufficient to keep the torus from expanding in the direction of its large radius. Rest energy zero can be achieved, presumably for photons and neutrons, when the gravitational energy and electromagnetic field energy are equal in magnitude. The manner in which these models can exhibit spin, magnetic moment, wave length, and phase velocity is indicated. The origin of nuclear forces from an electromagnetic basis is indicated."
Date: June 23, 1955
Creator: Bostick, W. H.
Object Type: Report
System: The UNT Digital Library
Initial Measurements on the Angular Distribution of Deuterium Plasma Produced by a Pulsed Spark Source (open access)

Initial Measurements on the Angular Distribution of Deuterium Plasma Produced by a Pulsed Spark Source

Abstract: "The deuterium plasma which is ejected by a 6000-ampere pulsed current through a rail-type spark source has a yield in the forward direction which is a factor of 5 to 10 greater than that in the perpendicular direction. This effect is believed to be due to the magnetic propulsion of the plasma."
Date: March 24, 1955
Creator: Bostick, W. H.
Object Type: Report
System: The UNT Digital Library
On the Mechanism of Generation of Magneto-Hydrodynamic Whirl Rings in the Interior of the Sun and Their Relation to Sunspots, Faculae, Prominences, and Flares (open access)

On the Mechanism of Generation of Magneto-Hydrodynamic Whirl Rings in the Interior of the Sun and Their Relation to Sunspots, Faculae, Prominences, and Flares

Abstract: "A possible mechanism for the generation of magneto-hydrodynamic whirl rings near the center of the sun is described. The organic relation of the reflection of these whirl rings at the surface of the sun to the cooling of sunspots, orientation, and polarity sequence of sunspots, prominences, flares, and faculae is delineated."
Date: March 29, 1955
Creator: Bostick, W. H.
Object Type: Report
System: The UNT Digital Library
The Radius of the Simple Torus Model of the Electron and Proton (open access)

The Radius of the Simple Torus Model of the Electron and Proton

Report discussing the torus model of elementary particles such as the electron and proton. Figures illustrating a simple torus model as well as a more complex version of the model are presented.
Date: January 1956
Creator: Bostick, W. H.
Object Type: Report
System: The UNT Digital Library
Projection of Plasma Across a Magnetic Field (Revised) (open access)

Projection of Plasma Across a Magnetic Field (Revised)

Report discussing the trajectories of blobs of plasma as it travels across a magnetic field. Various observations are made about the blobs, such as the fact that they are diamagnetic, and that they can be either elastically scattered from each other or form a compound entity with a possible toroidal structure. "It is believed that these blobs are actually stable configurations of plasma and magnetic field, having both diamagnetic moment and spin."
Date: November 10, 1955
Creator: Bostick, W. H.; Lasher, D. R; Finkelstein, David Ritz & McIntosh, V. G.
Object Type: Report
System: The UNT Digital Library
Measurement of the Behavior of a Plasma in a Magnetic Field by Means of Probes (open access)

Measurement of the Behavior of a Plasma in a Magnetic Field by Means of Probes

Abstract: "Probes were used to measure certain properties of the cloud of positive ions and electrons ejected from a pulsed ion source having two hydrogen-loaded electrodes. Time-of-flight measurements show: the presence of H+ ions with 50 ev directed energy; an increase of this energy with increasing pulse current in the source; a higher peak yield of ions with higher peak currents in the source; and higher yields and higher ion energies up to 110 ev have been recorded with the use of a pulsed magnetic field impressed upon the source. The neutral positive ion-electron beam from the source has been projected against an increasing magnetic field and the reflected and transmitted signals have been recorded and compared as a function of the magnetic field. Probe signals from the plasma as it encounters the magnetic field are oscillatory, suggesting that magnetohydrodynamic phenomena are presented."
Date: December 1, 1954
Creator: Bostick, W. H.; Zizzo, S. G. & Cook, Buford
Object Type: Report
System: The UNT Digital Library
Magnetic Acceleration of a Plasma by a Rail Source (open access)

Magnetic Acceleration of a Plasma by a Rail Source

Abstract: "Two parallel wires close together with an arc between them form a hairpin-type of current configuration which should magnetically propel the plasma of the arc. By the time-of-flight measurements with probes it has been demonstrated that directed translational energies of 290 ev can be imparted to deuterons in a plasma produced by a high-current pulsed arc at the tips of two titanium wires loaded with deuterium. It is believed that three deuterons are actually magnetically propelled."
Date: March 18, 1955
Creator: Bostick, Winston H.
Object Type: Report
System: The UNT Digital Library
Proposal for a High-Current Discharge Tube With Capacitor (open access)

Proposal for a High-Current Discharge Tube With Capacitor

Abstract: This proposal describes a parallel-plate capacitor and the discharge tube with which it is hoped that implosion energies of 1000 eV can be given to deuterons by the pinch effect. The discharge tube is to be arranged so that no external series switch is required.
Date: March 18, 1955
Creator: Bostick, Winston H.
Object Type: Report
System: The UNT Digital Library
The Prompt Radiations in the Spontaneous Fission of Cf²⁵² (Revised) (open access)

The Prompt Radiations in the Spontaneous Fission of Cf²⁵² (Revised)

Summary: The radiations emitted in the spontaneous fission of Cf²⁵² have been studied. The results in general are in agreement with other similar measurements. An experiment is described which is expected to give the neutron energies and angular distribution in the center-of-mass system of the moving fission fragment when the analysis is completed.
Date: July 25, 1958
Creator: Bowman, H. R. & Thompson, Stanley Gerald, 1912-1976
Object Type: Report
System: The UNT Digital Library
Multi-Channel Pulse Height Analyser (open access)

Multi-Channel Pulse Height Analyser

Numerous articles have recently been published on nuclear pulse height analyses. This report describes an approach to the problem using existing scaling equipment (scale of 1024) as building blocks in a multi-channel pulse height analyzer.
Date: April 3, 1953
Creator: Bowman, Harry R. & Thomas, Robert E.
Object Type: Report
System: The UNT Digital Library
A Spectrometer for Study of Neutron Activation of Beryllium-7 as a Function of Energy (open access)

A Spectrometer for Study of Neutron Activation of Beryllium-7 as a Function of Energy

Abstract. A neutron diffraction crystal spectrometer with a resolution of 13 microseconds per meter and monochromatic beam intensity up to 10(4)n/cm(2)=sec in the range 0.012-0.400 ev has been constructed for study of the activation cross section of Be7 as a function of energy in the thermal region. First preliminary results using ZnS(Ag) as a detector suggest the possibility of a resonance for the Be7(n,p)Li7 reaction in the region of 0.025-0.050 ev.
Date: May 18, 1960
Creator: Boyer, Walton T., Jr.
Object Type: Report
System: The UNT Digital Library
Characteristics of a Lead-Glass Photon Spectrometer and its Use in Studying the Absorption of Photons and Antinucleons (open access)

Characteristics of a Lead-Glass Photon Spectrometer and its Use in Studying the Absorption of Photons and Antinucleons

Thesis analyzing a lead-glass photon spectrometer and its use in studying the absorption of photons and antinucleons.
Date: December 12, 1956
Creator: Brabant, John Michael
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Behavior, a Balanced Network of Chemical Transformations (Biokinetics) (open access)

Behavior, a Balanced Network of Chemical Transformations (Biokinetics)

Abstract. While the concept of a biological system as a balanced network of chemical transformations is not a new one, experimental definition of specific systems has been lacking. This paper defines theoretically and experimentally a number of such networks and their behavior and response to some limited environmental changes.
Date: January 13, 1954
Creator: Bradley, D.F. & Calvin, M.
Object Type: Report
System: The UNT Digital Library
The Rb85-Rb86 Hyperfine-Structure Anomaly (open access)

The Rb85-Rb86 Hyperfine-Structure Anomaly

The atomic beam magnetic-resonance method with separated oscillatory fields has been used to measure the hyperfine structure separation and magnetic dipole moment of the isotopes Rb85 and 18.6d Rb86 in the 2S1/2 electronic ground state. Observation of the separation of a [formula] doublet in the intermediate field region gives the value of the moment; the minimum value of the mean doublet frequency gives the value of [formula]. Observation of another [formula] doublet in low field also yields a value for [formula].
Date: August 1960
Creator: Braslau, Norman; Brink, Gilbert O. & Khan, Jhan M.
Object Type: Report
System: The UNT Digital Library
The Use of Laboratory High Frequency Induction Furnaces (open access)

The Use of Laboratory High Frequency Induction Furnaces

Equations are derived for the rates of heating of objects in induction furnaces and for the maximum temperatures attainable. The equations are primarily useful in designing conducting crucibles, shells, and cylinders so as to increase the power input and decrease heat losses. A very brief treatment is given of the factors which influence the current in the induction coil. The performances of various induction furnaces are compared.
Date: April 3, 1950
Creator: Brewer, Leo, 1919-2005
Object Type: Report
System: The UNT Digital Library
Reactions of the Refractory Silicides With Carbon and With Nitrogen (open access)

Reactions of the Refractory Silicides With Carbon and With Nitrogen

Abstract: The silicides of Ti, Zr, Ce and Nb were investigated to determine the phases present at temperatures around 2000 K. The reactions of silicides of Ti, Zr, Ce, Nb, Ta, Mo, and W with carbon were studied at these temperatures. Also a limited amount of work was done on the reactions of some of the silicides with nitrogen. The data have been used to establish ternary phase diagrams for the systems and to obtain upper and lower limits for the heats of formation of the silicides.
Date: April 29, 1954
Creator: Brewer, Leo, 1919-2005 & Krikorian, Oscar
Object Type: Report
System: The UNT Digital Library
The Higher Fluorides of Plutonium (open access)

The Higher Fluorides of Plutonium

A systematic set of thermodynamic data for most of the known compounds of plutonium is presented. From earlier data present, it is now possible to extend the tabulation of data for the compounds of plutonium to include PuF(4), PuF(5), and PuF(6).
Date: March 20, 1950
Creator: Brewer, Leo, 1919-2005; Bromley, LeRoy A.; Gilles, Paul W. & Lofgren, Norman L.
Object Type: Report
System: The UNT Digital Library
Thermodynamic Properties Of Gaseous Metal Dihalides (open access)

Thermodynamic Properties Of Gaseous Metal Dihalides

The second and third law methods of thermodynamics are used to obtain the enthalpies of vaporization of the halides of Be, Mg, Ca, Sr, Ba, Zn, Cd, Hg, Sn, Pb, Ti, V, Cr, Mn, Fe, Co, Ni and Cu. Molecular and free energy data necessary for such calculations are presented. The structure of bonding in these molecules is briefly discussed.
Date: September 1961
Creator: Brewer, Leo, 1919-2005; Somayajulu, G. R. & Brackett, Elizabeth
Object Type: Report
System: The UNT Digital Library
Analysis of the Energy of Neutrons Emerging from the Target by Means of Their Spatial Distribution (open access)

Analysis of the Energy of Neutrons Emerging from the Target by Means of Their Spatial Distribution

As there is no accurate measurements of the energy distribution of neutrons emerging from large uranium blocks, it becomes of importance to see how much information of this kind can be derived from the slowing down distribution of the neutrons in a water tank.
Date: March 5, 1952
Creator: Brown, H.
Object Type: Report
System: The UNT Digital Library
Multiplying Lattices (open access)

Multiplying Lattices

The use of thermally fissionable material in the lattice adds a distributed source of fast neutrons which must be considered in evaluating the problem.
Date: October 18, 1950
Creator: Brown, H.
Object Type: Report
System: The UNT Digital Library
Neutron Yield in Uranium vs. Energy of Deuterons and Protons (open access)

Neutron Yield in Uranium vs. Energy of Deuterons and Protons

The purpose of this note is to recalculate the semi-empirical curve of neutron yield vs. deuteron energy originally obtained by H. York in order to predict, using it and the best available data, what yields may be expected for deuterons on uranium in the extrapolated energy region.
Date: October 11, 1950
Creator: Brown, H.
Object Type: Report
System: The UNT Digital Library