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Fukumasa Osamu

Affiliate Master Yamaguchi University

Particle simulation on extraction of positive and negative ions from a volume source

Review of Scientific Instruments Volume 65 Issue 4 Page 1438-1440
published_at 1994-04
[fulltext] 2.1 MB
Particle simulation on extraction of positive and negative ions from a volume source
Creators Naitou Hiroshi
Creators Fukumasa Osamu
Creators Sakachou Kouji
Creators Mutou Kouji
A two dimensional electrostatic particle simulation was done to study the extraction of positive (negative) ions from a volume plasma source. The simulation model is a rectangular system which consists of an extraction grid (left wall), a plasma grid, and a grounded wall (right wall). Upper and lower boundaries are connected by the periodic boundary condition. Full dynamics of charged particles are followed. Positive (negative) ions are extracted from the plasma region through a slit in the plasma grid to the extraction grid. Electrons are reflected by the magnetic filter and confined in the region to the right of the magnetic filter. Simulation results are compared with the Child-Langumuir law where the extracted ion current is proportional to the three-halves power of the potential of the extraction grid. In the case of the positive ion extraction, simulation results agree quite well with the Child-Langumuir law. Whereas, in the case of the negative ion extraction, simulation results agree with the law only for the lower value of extraction grid potential.
電気電子工学 ( Other)
Languages eng
Resource Type journal article
Publishers American Institute of Physics
Date Issued 1994-04
File Version Version of Record
Access Rights open access
[isPartOf] [URI]
Schools 大学院理工学研究科(工学)