The Electrical Design of a Heavy-Ion Accelerator (open access)

The Electrical Design of a Heavy-Ion Accelerator

The following report provides the design and workings of a heavy-ion accelerator designed to accelerate particles of atomic weight 12 through 20.
Date: August 20, 1957
Creator: Voelker, Ferdinand
Object Type: Report
System: The UNT Digital Library
Electron Capture and the Auger Effect in the Heaviest Elements (open access)

Electron Capture and the Auger Effect in the Heaviest Elements

Thesis describing the Auger effect in the heaviest elements. The elements detailed in the report are ytterbium, polonium, and uranium. Measurements of K fluorescence yields and K Auger electron intensity ratios are given.
Date: August 1955
Creator: Gray, Peter Rygaard
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Peeler Extraction of a Synchrocyclotron Beam (open access)

Peeler Extraction of a Synchrocyclotron Beam

This report follows the study of a perturbation in the fringing magnetic field of a synchrocyclotron, using the computed unperturbed orbits of the modified Berkeley 184-inch synchrocyclotron, and introduces the peeler extraction to overcome limitations by using a perturbation that recedes with increasing radial amplitude.
Date: August 8, 1957
Creator: Slobodrian, Rodolfo J.
Object Type: Report
System: The UNT Digital Library
Beta-Spectra of the Mirror Nuclei with A = 19 to 39 (open access)

Beta-Spectra of the Mirror Nuclei with A = 19 to 39

Thesis presenting data taken on experimental nuclear magnetic moments for beta spectra of the mirror nuclei with A-19 to 39.
Date: August 2, 1957
Creator: Welch, Jasper A., Jr.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Reactions of Mixed Crystals of Rare Earth Fluorides With Fluorine Gas (open access)

The Reactions of Mixed Crystals of Rare Earth Fluorides With Fluorine Gas

Thesis discussing the reactions of mixed crystals of rare earth fluorides with fluorine gas. The reactions were "studied gravimetrically by determining the weight increases of mixed tetrafluoride samples upon exposure to fluorine at a pressure of 1 atmosphere and a temperature of 250°C...The nature of the phases produced upon fluorination was studied by x-ray diffraction methods."
Date: August 1957
Creator: Bryan, William Phelan
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Bevatron Power Supply : Operating and Maintenance Problems (open access)

Bevatron Power Supply : Operating and Maintenance Problems

The following report provides results from investigations on the operation of the power supply for the Bevatron Magnet as well as maintenance problems.
Date: August 12, 1957
Creator: Harding, J. Gordon
Object Type: Report
System: The UNT Digital Library
Particle Trajectories in Homogeneous Magnetic Field with Linear Time Dependence (open access)

Particle Trajectories in Homogeneous Magnetic Field with Linear Time Dependence

Abstract: "Formulas are derived for the trajectory of a charged particle in a magnetic field which is a linear function of time. Graphs of certain functions are presented, by means of which a trajectory with given initial position and velocity may be plotted."
Date: August 9, 1955
Creator: Gardner, Clifford S.
Object Type: Report
System: The UNT Digital Library
Utilization of the Surface Tension of Liquid Metals in Making High-Vacuum Seals (open access)

Utilization of the Surface Tension of Liquid Metals in Making High-Vacuum Seals

Abstract: "The free energy (surface tension) of a liquid film can withstand atmospheric pressure across a maximum theoretical gap of 10-(-3) cm between solids if the liquid wets and bridges the sides of the gap continuously. The eutectic alloy of Ga, lm and Sm is used for this purpose. This alloy is molten at room temperature with surface tension > 500 dynes/cm, vapor pressure < 10-(-8) cm at 500 C and excellent wetting properties. This alloy can be utilized in valves, motion seals, flanged joints and for electrical contacts mounted in any position. Using ultrasonic soldering techniques without heat or flux this alloy is readily wetted on W, Mo, Ta, pyrex, quartz and certain ceramics. These materials will withstand the corrosive action of this alloy at at least 400 C. Some de-wetting has been observed with only the nonmetals at high temperatures. This de-wetting may be due to thermal decomposition of gallium oxide. Stainless steel is easily wetted, but is attacked at temperatures above 300 C. Copper and brass are attacked at room temperature."
Date: August 30, 1957
Creator: Milleron, Norman
Object Type: Report
System: The UNT Digital Library
ARC Research : Minimum Power Coil Geometries for D.C. Magnetic Mirrors (open access)

ARC Research : Minimum Power Coil Geometries for D.C. Magnetic Mirrors

The following document provides measurements, equations and figures describing the minimum power coil geometries for D.C. magnetic mirrors.
Date: August 10, 1955
Creator: Fasolo, John A.
Object Type: Report
System: The UNT Digital Library
Energetic Neutral Injection into Thermonuclear Machines (open access)

Energetic Neutral Injection into Thermonuclear Machines

Abstract: "A scheme is discussed in which D+ ions would be accelerated to about 100 kev in a conventional accelerator, then be sent through a gas target frmo which about half the ions would emerge neutral with very little scattering or energy loss; the neutral beam would then cross into a magnetic field and part of the atoms would be ionized and trapped by colliding with the already trapped ions. The smallest mirror machine with a central field of 30-40 kilogauss, 2;1 mirror ratio and β = 01 to 0.5 that would trap most of the neutral beam in the steady state, would be about a meter in diameter and require the order of hundreds of amperes of D+ ions into the neutralizer. The smallest stellerator with a field of 30 kilogauss and β = 0.1 that would trap most of the neutral beam would be about a meter long and require about 10 amperes of D+ ions. A preliminary mirror machine experiment that might be done using the 1/2-ampere, 100-kev D+ beam from the UCRL spare MTA injector is discussed. A method of starting these machine is discussed."
Date: August 10, 1955
Creator: Lauer, Eugene J.
Object Type: Report
System: The UNT Digital Library
Note on Table Top Injection : High Energy Injection Inside the Mirrors (open access)

Note on Table Top Injection : High Energy Injection Inside the Mirrors

"High energy injection into Table Top is discussed for the case in which the ion sources are to be located inside the mirrors in the mirror region. Two typical ion source geometries are considered. maximum time intervals available for injection indicated are on the order of 7 to 25 microseconds."
Date: August 26, 1955
Creator: Hiskes, J. R.
Object Type: Report
System: The UNT Digital Library
The Reaction Al²⁷(p,3pn)Na²⁴ (open access)

The Reaction Al²⁷(p,3pn)Na²⁴

Abstract: "The cross section for the reaction Al²⁷(p,3pn)Na²⁴ has been measured for proton energies between 30 and 350 Mev relative to the cross section for the reaction C12(p,3pn)C11, and the absolute magnitude determined by matching with data measured with a Faraday cup at 350 Mev and at 31.5 Mev."
Date: August 11, 1954
Creator: Stevenson, P. C.; Hicks, H. G. & Folger, R. L.
Object Type: Report
System: The UNT Digital Library
A Test for Recombinational Lethals in the X-Chromosome of Drosophila Melanogaster (open access)

A Test for Recombinational Lethals in the X-Chromosome of Drosophila Melanogaster

Report discussing a test for lethals resulting from the recombination of X-chromosomes in ten different stocks wild-type Drosophila melanogaster.
Date: August 1954
Creator: Hildreth, Philip E.
Object Type: Report
System: The UNT Digital Library
Gamma Rays from Inelastic Scattering of 14-Mev Neutrons on Pb²⁰⁸ (open access)

Gamma Rays from Inelastic Scattering of 14-Mev Neutrons on Pb²⁰⁸

Abstract: "The cross section for the production of 2.61-Mev gamma rays from the Pb-208(n, n')Pb-208* reaction has been measured for five different angles from 50 to 130 degrees. The angular distribution appears to be isotropic within the precision of the experiments, and leads to an integrated cross section of 25.5 +/- 4.6 millibarns."
Date: August 25, 1959
Creator: Hallett, Edward & Jensen, Roger
Object Type: Report
System: The UNT Digital Library
Electronic Engineering Design Problems in Fusion Research (open access)

Electronic Engineering Design Problems in Fusion Research

Abstract: "Design problems peculiar to fusion research are discussed. Particular emphasis is placed on the development of large energy storage systems, transfer of and utilization of this energy. In addition, design criteria for delay systems, data reduction systems, and other problems related to our fusion research program are discussed."
Date: August 1959
Creator: Smith, Vernon L.
Object Type: Report
System: The UNT Digital Library
Application of a Modified Debye-Huckel Theory to Fully Ionized Gases (open access)

Application of a Modified Debye-Huckel Theory to Fully Ionized Gases

Report discussing the equations of the Debye-Huckel theory modified to include quantum statistics.
Date: August 14, 1959
Creator: Kidder, R. E. & DeWitt, Hugh E.
Object Type: Report
System: The UNT Digital Library
Transistor Driven Beam Switching Tube Decade Counter (open access)

Transistor Driven Beam Switching Tube Decade Counter

Abstract: "This paper describes an electrical readout, decade counter employing the magnetron beam switching tube with transistor drive. Double pulse resolution is one microsecond. The unit will accept a variety of transistor types and will tolerate supply voltage variations of +/- 20% at ambient temperatures up to 60 C. A "Pixie" neon indicator is driven without the use of additional transistors. A readout circuit for printer on punched paper tape is presented."
Date: August 11, 1959
Creator: Graham, Richard H.
Object Type: Report
System: The UNT Digital Library
9-Zoom : A One-Dimensional, Multigroup, Neutron Diffusion Theory Reactor Code for the IBM 709 (open access)

9-Zoom : A One-Dimensional, Multigroup, Neutron Diffusion Theory Reactor Code for the IBM 709

The following document describes the usage and purpose of the neutron diffusion theory reactor program 9-Zoom, a memory-contained program that takes advantage of 709 features such as, for example, preferential order of multiply by zero, and for small problems approaches input-output limitations with excellent convergence properties.
Date: August 25, 1959
Creator: Stone, S. P.; Collins, E. T. & Lenihan, S. R.
Object Type: Report
System: The UNT Digital Library
Hydromagnetic Stability of a Diffuse Linear Pinch (open access)

Hydromagnetic Stability of a Diffuse Linear Pinch

Abstract: "The hydromagnetic energy principle is applied to the derivation of necessary and sufficient conditions for the hydromagnetic stability of a linear pinch with distributed plasma current (a diffuse linear pinch). The results are quite general in that the axial and azimuthal components of the magnetic field, which determines the structure of the pinch completely, are treated as arbitrary functions of distance from the axis. For purpose of illustration, the general results are applied to the limiting case of a pinch with the plasma current confined to an infinity thin layer (a sharp pinch)."
Date: August 1959
Creator: Newcomb, William A.
Object Type: Report
System: The UNT Digital Library
Air-Core Strong Focusing Synchrotron (open access)

Air-Core Strong Focusing Synchrotron

The following report is based on work performed under the auspices of the U.S. Atomic Energy Commission. The purpose of this report is to describe an air-core strong focusing synchrotron and its functions.
Date: August 21, 1959
Creator: Christofilos, Nicholas C.
Object Type: Report
System: The UNT Digital Library
A Large Bakeable Vacuum Valve (open access)

A Large Bakeable Vacuum Valve

This report describes the development and design of a large bakeable valve that is based on a unique seat arrangement and a novel motion seal.
Date: August 6, 1959
Creator: Batzer, Thomas H.
Object Type: Report
System: The UNT Digital Library
Thermodynamic Functions of a Partially Degenerate, Fully Ionized Gas (open access)

Thermodynamic Functions of a Partially Degenerate, Fully Ionized Gas

Report discussing the application of some previously established methods to yield a calculation of the pressure and internal energy functions of a system of point charges interacting only with Coulomb forces.
Date: August 14, 1959
Creator: DeWitt, Hugh E.
Object Type: Report
System: The UNT Digital Library
Boundary-layer formation in the pinch (open access)

Boundary-layer formation in the pinch

From abstract: "A study is made of various processes that occur prior to the pinch effect when an electric field is applied to a deuterium gas. The variables of the problem are percentage of ionization, the electron and ion temperatures, the resistivity of the gas, and the current density."
Date: August 10, 1959
Creator: Killeen, John; Gibson, Gordon & Colgate, Stirling A.
Object Type: Report
System: The UNT Digital Library
Cyclotron resonance absorption by a hydrogen plasma (open access)

Cyclotron resonance absorption by a hydrogen plasma

From introduction: "The work described in this report was undertaken as part of an experimental study to determine the effectiveness of radiofrequency field in heating the ions of a hydrogen or deuterium plasma. The ultimate aim is to find a method of heating a deuterium plasma until an appreciable rate of nuclear reaction takes place."
Date: August 30, 1957
Creator: Chambers, Edmund S.
Object Type: Report
System: The UNT Digital Library