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Electron Energy Distribution of a Current-Free Double Layer: Druyvesteyn Theory and Experiments

Takahashi, Kazunori; Charles, Christine; Boswell, Roderick; Fujiwara, Tamiya


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...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.107.035002


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