Scheduled System Maintenance:
On Monday, April 27th, IEEE Xplore will undergo scheduled maintenance from 1:00 PM - 3:00 PM ET (17:00 - 19:00 UTC). No interruption in service is anticipated.
By Topic

Plasma Science, IEEE Transactions on

Issue 2 • Date June 1983

Filter Results

Displaying Results 1 - 12 of 12
  • Table of contents

    Publication Year: 1983 , Page(s): c1
    Save to Project icon | Request Permissions | PDF file iconPDF (70 KB)  
    Freely Available from IEEE
  • IEEE Transactions on Plasma Science

    Publication Year: 1983 , Page(s): c2
    Save to Project icon | Request Permissions | PDF file iconPDF (198 KB)  
    Freely Available from IEEE
  • Electrostatic End-Plugging of a Plasma in a Cusp-Shaped Magnetic Field Composed of a Magnet Array

    Publication Year: 1983 , Page(s): 53 - 56
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (802 KB)  

    An end-loss of a plasma through a cusp-shaped magnetic field is experimentally investigated to be plugged by an electrostatic potential barrier. The main plasma is contained in a surface magnetic field whose one end is of cusp geometry. The potential barrier is set up near the cusp region by a production of another independent plasma whose space potential is controllable. The effects of the potential barrier on the end-plugging are studied with a measurement of the decay time of an after-glow plasma. It is observed that the decay time is improved by 2 ~ 3 times longer than that without the potential barrier. The experimental results are found to be consistent with preliminary estimated values. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Propagation of Electromagnetic Waves in a Magneto-Plasma Filled Elliptical Coaxial Line with Lossy Waalls

    Publication Year: 1983 , Page(s): 57 - 64
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1326 KB)  

    Electromagnetic wave propagation in a coaxial elliptical transmission line is investigated theoretically, the medium filling the space between the elliptical cylinders being a longitudinally magnetized plasma. Assuming an imperfect inner conductor throughout the treatment, exact numerical values for the complex propagation constant are determined through a special algorithmic process. Dispersion diagrams are given for propagation in weakly and strongly ionized media for several geometrical configurations of the structure. The influence of collisions in the values of propagation constant is also investigated. Conclusions are drawn for the possibility of propagation of the modes based on the size of the determined attenuation constant. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Antenna Q Monitoring for Pulsed RF Heating Experiments

    Publication Year: 1983 , Page(s): 64 - 67
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1225 KB)  

    Low frequency wave heating experiments conducted on pulsed plasmas are often faced with the task of measuring low antenna resistance. This paper describes a method for monitoring the antenna-plasma Q during a plasma discharge. Knowledge of Q measured at low power can be helpful in the design of a high power antenna and its associated matching network. The concept of an effective Q is introduced and its importance in suppressing harmonics is noted. Q scans for a low frequency Alfvén wave heating experiment conducted on the PRETEXT tokamak are shown. Detailed circuitry of this diagnostic is included. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Novel Laser Heterodyne Technique for the Measurement of Electron Density in Gas Discharges: Application to a TEA CO2 Laser Plasma

    Publication Year: 1983 , Page(s): 68 - 71
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1859 KB)  

    We describe a novel intracavity laser heterodyne technique for the measurement of electron density in gas discharges. The method produces time-resolved data from a single pulse and we have used it to monitor electron densities in a TEA laser discharge with a typical CO2 laser gas mixture. Good agreement was found between the measured electron density and its value calculated from current density and drift velocity. A maximum value of 5 × 1013 cm-3 was observed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Asymmetrical Abel Inversion of MHD Generator Discharges

    Publication Year: 1983 , Page(s): 72 - 75
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (736 KB)  

    The method of Yasutomo et al. for asymmetrical Abel inversion is extended. The original solution consists of a radial part and a weight function, describing the degree of asymmetry. In this work, the radial part is generalized to an elliptical part by employing a coordinate transformation. A factor ¿ is introduced defining the ellipticity. The extended method is applied to continuum intensity measurements of a discharge in the argon-cesium plasma of a shock-tunnel MHD generator. Two axes of observation have been used, the first one to obtain the radial part and the weight function, the second one, at an angle of 30° with the first axis, to obtain the value of ¿ needed in the transformation. The reconstructed spatial distribution of radiation intensity is nearly elliptical but with asymmetry in flow direction. The distribution is stretched out along the magetic field lines and fairly well reproduces the emitted intensity profiles. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Vacuum Arc Anode Phenomena

    Publication Year: 1983 , Page(s): 76 - 89
    Cited by:  Papers (23)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3739 KB)  

    This paper briefly reviews anode phenomena in vacuum arcs, specially experimental work. It discusses, in succession, arc modes at the anode, anode temperature measurements, anode ions, transitions of the arc into various modes (principally the anode spot mode), and theoretical explanations of anode phenomena. The two most common anode modes in a vacuum arc are a low current mode where the anode is basically passive, acting only as a collector of particles emitted from the cathode, and a high current mode with a fully developed anode spot. Characteristically this anode spot has a temperature near the atmospheric boiling point of the anode material and is a copious source of vapor and energetic ions. However, other anode modes can exist. A low current vacuum arc with electrodes of readily sputterable material may emit a flux of sputtered atoms from the anode. Usually this sputtered flux will have little effect upon the vacuum arc, but in certain circumstances it could be significant. A vacuum arc doesn't always transfer directly from a low current mode to the anode spot mode. In appropriate experimental conditions, formation of an anode spot may be preceded by the formation of an anode footpoint. This footpoint is luminous, but much cooler than a true anode spot. Finally, (again in appropriate circumstances) several small anode spots may form instead of one large anode spot. With sufficient increase in arc current or arcing time these will usually combine to form a single large active spot. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Instability Threshold for a Calutron (Isotope Separator) with Only One Isotope Species

    Publication Year: 1983 , Page(s): 90 - 91
    Cited by:  Papers (1)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (376 KB)  

    A calculation of the instability threshold for an isotope separator with only one isotope species yields a threshold comparable to that for several species. The beam interacts with a neutralizing cloud of electrons. As a side issue, a scaling law is derived that predicts that the beam particle density scales as the square of the magnetic field. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Correction to "Concepts for Optical Control of Diffuse Discharge Opening Switches"

    Publication Year: 1983 , Page(s): 91
    Save to Project icon | Request Permissions | PDF file iconPDF (161 KB)  
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Correction to "Special Issue on Plasma Switches"

    Publication Year: 1983 , Page(s): 91
    Save to Project icon | Request Permissions | PDF file iconPDF (161 KB)  
    Full text access may be available. Click article title to sign in or learn about subscription options.
  • How 600 Libraries in 38 Countries Help Keep Their Readers Abreast of Electrotechnology

    Publication Year: 1983 , Page(s): 91-a
    Save to Project icon | Request Permissions | PDF file iconPDF (1235 KB)  
    Freely Available from IEEE

Aims & Scope

IEEE Transactions on Plasma Sciences focuses on plasma science and engineering, including: magnetofluid dynamics and thermionics; plasma dynamics; gaseous electronics and arc technology.

 

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Steven J. Gitomer, Ph.D.
Senior Scientist, US Civilian Research & Development Foundation
Guest Scientist, Los Alamos National Laboratory
1428 Miracerros Loop South
Santa Fe, NM  87505  87505  USA
tps-editor@ieee.org
Phone:505-988-5751
Fax:505-988-5751 (call first)