International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2575

Full Length Research Paper

Space charge kinetic treatment in Langmuir probes with cylindrical geometry

E. Valdeblánquez
  • E. Valdeblánquez
  • Universidad del Zulia, Facultad de Ingeniería, Apartado 4011-A 526, Maracaibo, Edo. Zulia, Venezuela.
  • Google Scholar
P. Martín
  • P. Martín
  • Depto. de Física, Universidad de Antofagasta, Antofagasta, Chile.
  • Google Scholar


  •  Received: 08 July 2015
  •  Accepted: 29 February 2016
  •  Published: 16 March 2016

Abstract

In this paper, an analysis of the space charge build up in the interelectrodic region of a velocity analyzer with cylindrical symmetry is performed using kinetic theory. Thus the present treatment includes temperature effects. Azimuth symmetry is also assumed. A detailed and comparative analysis, between planar and cylindrical electrodes, is carried out, showing the advantages of each kind of symmetries.

 

Key words: Space charge effects, Langmuir probes, velocity analyzers.