Electron energy distribution of a current-free double layer: Druyvesteyn theory and experiments

Kazunori Takahashi, Christine Charles, Rod W. Boswell, Tamiya Fujiwara

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Electron energy distributions upstream of a current-free double layer (CFDL) contained in a low-collisional plasma are modeled and compared with experimental results. The experimentally observed electron energy probability functions (EEPFs) with a depleted tail above the energy corresponding to the potential drop of the CFDL can be well approximated by a Druyvesteyn distribution function. Theoretical effective electron temperatures for the Druyvesteyn distribution are in good agreement with the values obtained from the experimental EEPFs over the range of pressure where the CFDL is observed.

Original languageEnglish
Article number035002
JournalPhysical review letters
Volume107
Issue number3
DOIs
Publication statusPublished - 2011 Jul 11
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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