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Applied Physics Letters / Volume 97 / Issue 5 / PLASMAS AND ELECTRICAL DISCHARGES

Appl. Phys. Lett. 97, 051501 (2010); http://dx.doi.org/10.1063/1.3475924 (3 pages)

On the hysteresis at ion extraction in the single-grid ion source

D. V. Rafalskyi and S. V. Dudin

Department of Physics and Technology, V. N. Karazin Kharkiv National University, 31 Kurchatova Ave., 61108 Kharkiv, Ukraine

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(Received 27 May 2010; accepted 6 July 2010; published online 3 August 2010)

The ion extraction in the single-grid ion source with a woven extraction grid is researched. It has been found experimentally that the extraction can occur in “low current” and “high current” modes with stepwise hysteretic transitions between them. The assumption has been made that the existence of the two extraction regimes can be explained by the existence of two kinds of the space charge sheaths near the grid wires. This assumption is confirmed by the estimations of the sheath depth for the cylindrical and plane geometries.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

plasma boundary layers, plasma density, plasma flow, plasma sheaths, plasma sources, space charge

PACS

  • 52.50.Dg

    Plasma sources

  • 52.40.Kh

    Plasma sheaths

  • 52.40.Hf

    Plasma-material interactions; boundary layer effects

  • 52.30.-q

    Plasma dynamics and flow

  • 52.25.Os

    Emission, absorption, and scattering of electromagnetic radiation

  • 52.80.-s

    Electric discharges

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3475924

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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    I. Langmuir and K. B. Blodgett, Phys. Rev. 22, 347 (1923).


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