IEEE Transactions on Plasma Science

Volume 6 Issue 3 • Sept. 1978

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  • Table of contents

    Publication Year: 1978, Page(s): c1
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  • IEEE Transactions on Plasma Science

    Publication Year: 1978, Page(s): c2
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  • Time Dependence of Anode Spot Formation Threshold Current in Vacuum Arcs

    Publication Year: 1978, Page(s):233 - 237
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (878 KB)

    The variation of threshold current for the transition between the low current quiescent vacuum arc mode, and the high voltage noisy mode associated with anode spot formation, was measured as a function of peak current, current waveform frequency, and electrode separation on fixed diameter (25 mm) Cu and Ni electrodes. At current waveform frequencies of about 60 Hz on Cu electrodes, the threshold c... View full abstract»

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  • The Hydrogen Dissociator

    Publication Year: 1978, Page(s):238 - 243
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (796 KB)

    A performance analysis is presented for the hydrogen dissociator used in hydrogen masers to provide a beam of atomic hydrogen. An analysis of the discharge characteristics yields relations for electron temperature as a function of vessel size and gas pressure and for plasma density as a function of power input. Also a relation between ion impact energy at the wall and electron temperature is deriv... View full abstract»

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  • Amplitude Oscillations of a Monochromatic Wave in a One-Dimensional Plasma

    Publication Year: 1978, Page(s):244 - 247
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1491 KB)

    The amplitude oscillations of a monochromatic wave propagating in a one-dimensional Vlasov plasma are studied numerically. The results for the nonlinear evolution of the wave show very good qualitative agreement with the theory. View full abstract»

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  • Current Interruption at Powers up to 1 GW with Crossed-Field Tubes

    Publication Year: 1978, Page(s):248 - 255
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2326 KB)

    This paper describes the current interruption and voltage holdoff capabilities of a wide range of crossed-field tubes (XFTs). The XFTs investigated have active electrode areas ranging from 96 to 8000 cm2 with mean diameters from 2 to 56 cm. For the larger XFTs, currents up to 10 kA have been interrupted at voltages up to 100 kV, corresponding to a switched power of 1 GW. Experiments have shown the... View full abstract»

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  • The Localized Pinch Model as a High Energy Ion Collective Acceleration Mechanism

    Publication Year: 1978, Page(s):256 - 260
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (691 KB)

    We present analytic and numerical calculations of the localized pinch model for ion collective acceleration by intense relativistic electron beams. These studies demonstrate the model's postulated synchronous acceleration of the ion clump and beam pinch. However, the configuration is found to be phase unstable, terminating the acceleration process before significant ion energy is acheived. Therefo... View full abstract»

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  • Spectral Dependence of Rise Time in Gas Filled Phototubes: Implications concerning Possible Miniaturization of Gas Discharge Detectors of Electromagnetic Radiation

    Publication Year: 1978, Page(s):261 - 265
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1216 KB)

    The rise time of a gas-filled photodiode at blue-green wavelengths is found to be less than that at red wavelengths. As photoionization of excited atoms in such devices increases response to light of decreasing wavelength over that provided by the photocathode, spectral differences in rise time are also attributed to the same mechanism. It is suggested that these phenomena decrease parasitic induc... View full abstract»

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  • Analog Data Processing Circuits for Thomson Scattering Diagnostic Systems

    Publication Year: 1978, Page(s):266 - 269
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1339 KB)

    Simple analog data processing circuits are described which transmit serially over a single transmission line the integrated outputs of a multichannel Thomson scattering diagnostic system. The small, battery powered circuits may be mounted in the photomultiplier tube housing for maximum noise rejection. View full abstract»

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  • Alternative Approaches to Plasma Confinement

    Publication Year: 1978, Page(s):270 - 295
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10561 KB)

    The plasma physics literature has been surveyed, and 20 different plasma confinement concepts have been identified, each of which has distinctive features which set it apart from the main-line tokamak approach. The principles and characteristics of these concepts are described, and selected literature is cited for each. Because these concepts are in an early stage of investigation, all of their ad... View full abstract»

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  • A Fast Interferometer Using a Nitrogen Laser for Dense Plasmas

    Publication Year: 1978, Page(s):296 - 299
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1672 KB)

    A Mach-Zehnder interferometer utilizing a short pulse (5 ns FWHM) nitrogen laser has been built and successfully operated. This system is capable of measuring plasma electron densities higher than 1020 cm-3 and is simple as well as inexpensive. The same system can be used for schlieren and shadow photography. Examples of an interferogram and a shadowgraph of a high density plasma are presented. View full abstract»

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  • The Local Electrical Properties of Gas Blast Arcs near Current Zero

    Publication Year: 1978, Page(s):300 - 313
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2356 KB)

    Results are reported of experiments performed on a model air-blast circuit breaker to determine the distribution of voltage along the axis of the arc gap during the current zero period, following half sinusoidal current pulses of frequency 85 Hz. The air-blast was sustained by a reservoir pressure of 6.89 × 105 N/m2. Measurements were made following peak currents of 3 and 8 kA, with copper and ca... View full abstract»

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  • The Effective Cross Section

    Publication Year: 1978, Page(s):314 - 316
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (513 KB)

    The effection cross section concept for low intensity light illumination of gas discharges is shown to be analogous to high intensity breakdown of gases as interpreted by Panarella's "effective photon" concept. This mathematical result is suggested as a possible interpretation of strikingly similar nonlinearities of gas breakdown by light measured in both cases at their respectively different inte... View full abstract»

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  • Diffusive Losses and Scaling Law for Large Tokamaks

    Publication Year: 1978, Page(s):317 - 328
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1983 KB)

    Under plasma conditions aimed for in the next generation of tokamak devices, it is necessary to consider a multi-parameter model for diffusive energy losses which would limit the temperatures and confinement times attainable. In this paper, we study a model for plasma diffusion in a reactor size tokamak considering various plasma parameters (like density, temperature, spatial gradients, collisiona... View full abstract»

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  • On the Resistive Electromagnetic Ion Cyclotron Instability

    Publication Year: 1978, Page(s):329 - 337
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (876 KB)

    An investigation is made on the conditions for validity of the analytical results for the resistive electromagnetic ion cyclotron instability discussed in a recent paper by Lee and Luhmann. The regions of validity in wavenumber space are determined numerically for various conbinations of plasma density, magnetic field, and electron drift velocity. It is concluded that the analytical results are go... View full abstract»

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  • Proceedings Second IEEE Minicourse on Fusion Troy, New York, May 1977

    Publication Year: 1978, Page(s): 338
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  • Announcement and Call for Papers Second IEEE International Pulsed Power Conference June 12-4, 1979 South Park Inn Lubbock, Texas

    Publication Year: 1978, Page(s): 339
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  • [Advertisement]

    Publication Year: 1978, Page(s): 339a
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  • Information for authors

    Publication Year: 1978, Page(s): 339b
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  • Affiliate Plan of the IEEE Nuclear and Plasma Sciences Society

    Publication Year: 1978, Page(s): 339c
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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.

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Editor-in-Chief
Steven J. Gitomer, Ph.D.
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Guest Scientist, Los Alamos National Laboratory
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