Resource Type
Serial/Series Title
Country
51 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
51
next
Relative Yields of Nitrogen-17 Produced by 190-Mev Deuteron Bombardment
"Yields of N¹⁷ relative to that produced in LiF have been measured in the 190-Mev deflected deuteron and the 380-Mev alpha beams of the 184-inch synchrocyclotron. The measurements have been performed in all the light elements from 0 through V, with the exception of Sc and the noble gases. In addition, yields were measured in the separated isotopes of Mg...Comparisons are made with other types of yield studies performed with neutrons and protons, and the areas of agreement are noted."
Date:
April 13, 1955
Creator:
Chupp, Warren William
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
High Pressure Low Resistance Joint
The following report describes the usage of tin-foil to obtain a mechanical joint of low electrical resistance while providing a seal to hold water at a pressure of 300 psi.
Date:
March 28, 1955
Creator:
Peters, Ralph
Object Type:
Report
System:
The UNT Digital Library
An "Exact" Analysis of a Cylindrical Plasma in a Magnetic Field
Abstract: "The analysis of an immobilized plasma is here extended to the case where the geometry is cylindrical rather than Cartesian. (This report, UCRL-4439 (Rev, 4 constitutes Part II of the report series (UCRL-4466, Parts I, III, and IV) dealing with this general problem.)"
Date:
January 14, 1955
Creator:
Tonks, Lewi, 1897-1971
Object Type:
Report
System:
The UNT Digital Library
The Elimination of Microwave Reflections
Abstract: "The reflections of microwaves from the walls of a plasma-containing vessel are studied. The probable cause of the reflections is discussed, and several suggestions are made for eliminating the reflections from the waveguide in the vessel and particularly from the pyrex vessel wall and copper tubing surrounding the pyrex. Quarter-wave-thick carbon-filled plastics or glasses having a very low vapor pressure room most promising when placed inside the pyrex cylinder. BaTiO3 appears to be an excellent material when placed outside the vacuum."
Date:
February 1, 1955
Creator:
Beard, David
Object Type:
Report
System:
The UNT Digital Library
Effect of a Decelerating Grid on Current from an Ion Source
Abstract: "A theoretical criterion is given for the conditions under which the ions from an ion source may be decelerated by a decelerating grid, following the accelerating grid which extracts ions from the emitter, without causing a reduction in the current supplied by the source."
Date:
February 23, 1955
Creator:
Bing, George F., 1924-; Gardner, C. S. & Northrop, Theodore G.
Object Type:
Report
System:
The UNT Digital Library
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
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
High-Energy Peripheral Injection into Mirror Machines
The following report proposes various methods in injecting and heating in mirror machines, using high-energy ion beams.
Date:
September 22, 1955
Creator:
Linlor, William I., 1915-
Object Type:
Report
System:
The UNT Digital Library
Machine Calculations for the Analysis of the Plane Immobilized Plasma by Trajectories
Abstract: "The analysis of an immobilized plasma by trajectories for the Cartesian case has been adapted to machine calculation and the results of such calculations are described. Their most surprising features is the thinness of the transition layer between a vacuum and a uniform plasma, which is possible without assuming too extreme physical circumstances."
Date:
March 8, 1955
Creator:
Tonks, Lewi, 1897-1971 & Keirstead, Ralph
Object Type:
Report
System:
The UNT Digital Library
Trajectory-Wise Analysis of Immobilized Plasma Including Electrons. Machine Calculations
Abstract: "The trajectory analysis of an immobilized plasma has been generalized to include the presence of electrons having a far similar radius of gyration and, therefore, fitting readily into the broader scale structure established by the ions. This problem has been adapted to machine calculations and the results for various strengths plasmas have been calculated."
Date:
March 25, 1955
Creator:
Tonks, Lewi, 1897-1971 & Keirstead, Ralph
Object Type:
Report
System:
The UNT Digital Library
Transient Temperature Variations During the Self-Heating of a Plasma by Thermonuclear Reactions
Abstract: "The possibility of transient temperature variations during the self-heating of a plasma by thermonuclear reactions was investigated. Calculations were performed on an IBM Card Program Calculator. Estimates of the time scale for self-heating were obtained. It was concluded that it would be unsafe to assume that the nuclear temperature is always equal to or greater than the electron temperature in a discussion of plasma instabilities for a plasma with 10 percent or greater tritium concentration."
Date:
March 21, 1955
Creator:
Greyber, Howard D.
Object Type:
Report
System:
The UNT Digital Library
Microwave Diagnostics in ARC Research : On Determination of Physical Quantities of Gas Discharges in Ion-containment Machines by Measurement of Microwave Propagation Coefficient
This report describes a method used to determine semi-quantitatively the time-varying plasma density in magnetic mirror machines by microwave phase-shift and attenuation measurement.
Date:
April 1955
Creator:
Post, Richard F.; Prosser, T. F. & Wharton, C. B.
Object Type:
Report
System:
The UNT Digital Library
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
Shock-Tube Experiments at University of Oklahoma and Cornell University
Abstract: "The shock-tube experiments of Professor R. G. Fowler and his co-workers at the University of Oklahoma, and of Professor Arthur Kantrowits and his group at Cornell University, are reported by the author, who visited the laboratories of the two groups. Fowler's group has studied expanding low-pressure sparks; Kantrowits and his group have studied shocks produced by the adiabatic expansion of a compressed gas."
Date:
May 20, 1955
Creator:
Huber, Elsa L.
Object Type:
Report
System:
The UNT Digital Library
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
An Integrated Miniature Solvent Extraction System for Processing Radioactive Solutions
Abstract: "Because of the radiation hazards inherent in processing large volumes of radioactive solutions by solvent extraction techniques, there is need for a system with small hold-up which can be contained within a minimum of shielding and yet which is versatile enough to be used as a research tool. A system utilizing a miniature mixer-settler has been constructed and its successful operation by remote means demonstrated. The unit is semiportable and employs a number of novel features of value in studying a wide variety of solvent extraction flowsheets. Data on the distribution of nitric acid between water and tributyl phosphate (in kerosene) are included as a demonstration of the operability of the unit."
Date:
June 21, 1955
Creator:
Bloom, Justin L.
Object Type:
Report
System:
The UNT Digital Library
Design and Fabrication of Solenoids for High Magnetic Fields
From abstract: "This report consists of papers presented of papers presented at a meeting held in late 1954 to review all the work related to coil design and fabrication."
Date:
December 1955
Creator:
Coensgen, Frederic; Turpen, Oliver S., Jr.; Branum, David R.; Meuser, Robert B.; Rhein, Reginald W. & Carlson, Norris W.
Object Type:
Report
System:
The UNT Digital Library
Note on Possible Stabilization Due to Coupling
Abstract: "By a simple illustration it is pointed out that, conceivably, the real coupled character of the general magnetohydrodynamic equations may lead to much slower instability growth rates, if not stabilization, than predicted from the linearized set of equations."
Date:
July 1, 1955
Creator:
Greyber, Howard D.
Object Type:
Report
System:
The UNT Digital Library
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
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
"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
Liquid-Sodium Instability Experiment : Part I
Abstract: "A magnetohydrodynamic model of a plasma-magnetic field instability, using liquid sodium, has been observed. The growth rate and wave length of the Taylor-type acceleration instability was observed to be in agreement with the theory of Kruskal and Schwarzschild."
Date:
September 30, 1955
Creator:
Colgate, Stirling A.
Object Type:
Report
System:
The UNT Digital Library
Adiabatic Injection
From introduction comments: The present analysis is intended to examine the relations for "adiabatic" injection in general from a different point of view.
Date:
September 22, 1955
Creator:
Linlor, William I., 1915-
Object Type:
Report
System:
The UNT Digital Library
Continuous injection processing
From introduction: "In this report we consider a few non-adiabatic processes. The types to be discussed will be limited because of two reasons: first, complete descriptions are available for some processes; second, as time goes on alternative injection methods undoubtedly will be discovered, so this list must necessarily be incomplete."
Date:
September 23, 1955
Creator:
Linlor, William I., 1915-
Object Type:
Report
System:
The UNT Digital Library