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Occluded-Gas Ion Source

Description: "Characteristics of a pulsed, occluded-gas ion source, operating in a magnetic field, have been investigated. Mass spectra of hydrogen- and deuterium-loaded sources are presented. Constructional details of the source and its operating characteristics are discussed."
Date: June 27, 1956
Creator: Ehlers, Kenneth W.
Partner: UNT Libraries Government Documents Department
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[News Clip: Avascular necrosis]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: September 28, 1985, 6:00 p.m.
Duration: 1 minute 59 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Skylab]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story about the Skylab one astronauts who have eleven days left in orbit but the Skylab two rocket has already rolled into place for its liftoff.
Date: June 11, 1973, 6:30 a.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

The Ball Tuner Change Tables

Description: Technique used in deriving values of the linac ball tuner settings to produce various fields is discussed briefly, and tables showing ball tuner change numbers and values used in making up the ball tuner change numbers are given.
Date: May 3, 1962
Creator: Walters, J. L.
Partner: UNT Libraries Government Documents Department
open access

Magnetic Measurement of AGS Experimental Magnets

Description: This is a preliminary report on the magnetic measurements taken to date on the AGS experimental magnets. It mainly summarizes the results which were necessary for the setting up of the proton separated beam in August 1961. A few curves on information obtained since then are included. When the study is finished, a complete report on all phases of the work, including the methods used, will be forthcoming.
Date: December 26, 1961
Creator: Danby, Gordon T.
Partner: UNT Libraries Government Documents Department
open access

The Magnetic Road: A New Form of Transport

Description: A study is made of the technical and economic feasibility of a frictionless magnetic suspension generated by superconductors for transportation. Experiments relating to the suspension are described. A conceptual design is presented where vehicles suspended by magnetic interaction with two small insulated superconducting rails carry passengers and freight in vacuum tunnels at 600-1000 mph or in air at 200-300 mph. Other applications are possible, particularly for spacecraft and aircraft launchin… more
Date: 1962
Creator: Powell, James R.
Partner: UNT Libraries Government Documents Department
open access

Beam Separators for Bev Particles

Description: The problem of separation of beams of particles of different masses but of the same momentum at Bev energies is the subject of a great deal of study at several high energy laboratories. In this note we shall describe the problem and tabulate a few of the cogent parameters. Frequently the student of high energy interactions is faced with a beam of miscellaneous particles coming from an accelerator. By standard techniques this beam can be rendered approximately parallel and an inch or so in diame… more
Date: January 22, 1963
Creator: Blewett, J. P.
Partner: UNT Libraries Government Documents Department
open access

Acceleration of Deuterons or Alpha Particles in the AGS

Description: The magnetic field of the AGS ring can contain particles of magnetic rigidity about 34 Bv/c. This includes not only protons of kinetic energy 33 Bev, but also 32 Bev deuterons, 64 Bev alpha particles, and conceivably heavier nuclei such as 188 Bev carbon nuclei. It will be shown in this paper that such nuclei can be injected and accelerated in the AGS if some rather small modifications are made in the injection and acceleration systems. What physics could be done with such beams? Several types … more
Date: December 28, 1962
Creator: Courant, E. D.
Partner: UNT Libraries Government Documents Department
open access

[News Script: Skylab]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story about the Skylab- one astronauts who have eleven days left in orbit but the Skylab two rocket has already been rolled into place for its liftoff.
Date: June 11, 1973, 6:30 a.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Servo System for Magnetic Controlled Constant Intensity Flat Top Beam Spill-Out

Description: A uniform intensity flat top spill-out cannot be obtained by manual control for two reasons: 1. The horizontal density of the internal beam of the Cosmotron is far from uniform. As a result, a manually controlled linear motion of the internal beam into a target will result in a non-uniform spill-out intensity. 2. Stability requirements of the Cosmotron magnet voltage are not easily met without feedback because of inherent component stability. The proposed servo system will sense the external be… more
Date: November 21, 1961
Creator: Cottingham, J. G.
Partner: UNT Libraries Government Documents Department
open access

Acceleration of Polarized Protons to Relativistic Energies

Description: Maintenance of polarization of polarized protons in a linear accelerator is known to be feasible. Circular accelerators present a different problem, and the investigation of the interaction of orbit dynamics and particle polarization in general is undertaken. The equation of motion of the spin vector of a charged particle in a magnetic field as formulated by Bargmann, Michel, and Telegdi is utilized in the study of depolarization for several accelerators. High values of depolarization are obtai… more
Date: January 22, 1962
Creator: Courant, E.D.
Partner: UNT Libraries Government Documents Department
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Cosmic Ray Produced Ar37 and Ar39 Activities in Recently Fallen Meteorites

Description: Several methods of determining meteorite ages depend ages upon nuclides formed by cosmic ray interactions. The tactic assumption is always made that the intensity of cosmic radiation does not vary in time or space. However it is known that the intensity of cosmic radiation at the earth varies with the solar activity. The spectrum of cosmic ray protons and alpha particles exhibit a marked drop at the low energy end (<1.5 GeV) and the intensity in the region appears to follow the 11 year cycle of… more
Date: February 1, 1968
Creator: Davis, R. Jr.; Stoenner, R. W. & Schaeffer, O. A.
Partner: UNT Libraries Government Documents Department
open access

Some Experiments Relating Ion Diffusion in a Plasma to the Neutral Gas Density in the Presence of a Magnetic Field

Description: In some recent experiments the ion density in a plasma was measured as a function of radial distance from a d-c arc source of ions for the magnetic field intensities from 2500 to 14000 oersted. The diffusion coefficient appeared to very inversely as the square of the magnetic field strength, D~1/H2. The absolute value of D was shown to be approximately that which would be predicted by the collision diffusion theory when account is taken of the shorting effect of the end walls. The purpose of th… more
Date: June 15, 1956
Creator: Reidigh, Rodger V.
Partner: UNT Libraries Government Documents Department
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Diffusion of Ions in a Plasma Across a Magnetic Field

Description: A theoretical and experimental investigation of the coefficient for diffusion of ions across a magnetic field Is described. The resultant diffusion coefficient is found to vary inversely as the square of the magnetic field strength, in accord with the usual collison-diffusion theory. The magnitude of the coefficient is much larger (x700) than the coefficient predicted by the usual ambipolar diffusion theory. This discrepancy is resolved by showing that diffusion across a magnetic field is not a… more
Date: July 1955
Creator: Simon, Albert & Neidign, Rodger V.
Partner: UNT Libraries Government Documents Department
open access

80" Chamber - Low Energy Beams

Description: One of the major, as well as first, decisions which must be taken on a large chamber is to decide on the direction of the magnetic field, i.e., vertical or horizontal. Either alternative has advantages and disadvantages ad it is the intention of this note to discuss these features.
Date: January 3, 1964
Creator: Rau, R. R.
Partner: UNT Libraries Government Documents Department
open access

Considerations on the Magnet for the 80" Hydrogen Bubble Chamber

Description: For momentum measurements in bubble chambers a magnetic field has to e provided. The following discussion summarizes approximate calculations to determine the necessary amounts of copper and iron for our projected 80" liquid hydrogen bubble chamber magnet. Without any refinements, the accuracy of momentum measurements is proportional to the square of the track length and therefore to the square of the linear dimension of the chamber. If the scale factor for the size of the chamber is λ, [equati… more
Date: unknown
Partner: UNT Libraries Government Documents Department
open access

Magnet Coils Detailed Conductor Design

Description: On the basis of measurements made upon analogues of the proposed magnet, it was decided that the distribution of ampere-turns between the two exciting coils should be in a ratio of about 1:33:1. This distribution is expected to minimize the variation of the magnetic field intensity over the depth. of the chamber. Simplicity of construction demands that there be an integral number of turns in each layer of conductors. If no water connections are to be made at the inside of the coils, each coil m… more
Date: January 7, 1964
Partner: UNT Libraries Government Documents Department
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