Similarity of stability characteristics of planar and coaxial crossed-field diodes

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871722· OSTI ID:434932

Gopinath, V P; Verboncoeur, J P; Birdsall, C K ^[1]

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1. Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720 (United States)

Simulations of cylindrical crossed-field diodes for anode/cathode radius ratios of 2 and 5 indicate that the limiting current curve in the region {ital B}{lt}{ital B}{sub {ital H}} in coaxial diodes follows the planar theory and simulations very closely. Coaxial diodes also follow planar theory predicting transition to turbulence in the region {ital B}{approx_gt}{ital B}{sub {ital H}}. Larger radius ratio (10, 20) diodes show somewhat larger limits. These results show little variation with respect to operating voltage or cathode radius. A possible explanation for this behavior is also examined. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 434932
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CURRENT DENSITY
CYLINDRICAL CONFIGURATION
DIODE TUBES
PLASMA SIMULATION
SPACE CHARGE
TURBULENCE