Formation of voidless dusty plasma using coaxially-segmented RF discharge under microgravity condition

Wataru Suzukawa, Reijiro Ikada, Yasuhiro Tanaka, Satoru Iizuka

Research output: Contribution to conferencePaperpeer-review

Abstract

A technique is presented for producing a dusty plasma without void inside by introducing a coaxially-segmented parallel plate radio-frequency (RF) discharge under mictrogravity condition. Main plasma for the dusty plasma experiment is produced in a central core part of the parallel plate discharge, while a plasma for igniting the core plasma discharge is produced in the periphery region surrounding the core plasma. In order to reduce the ion drag force that is a cause of the void formation, the core plasma density can be markedly decreased owing to the supply of primary electrons from the periphery plasma. We observed a voidless disk-shape dusty plasma between the coaxially-segmented RF electrodes in the microgravity experiment.

Original languageEnglish
Pages366-370
Number of pages5
Publication statusPublished - 2005 Dec 1
EventInternational Astronautical Federation - 56th International Astronautical Congress 2005 - Fukuoka, Japan
Duration: 2005 Oct 172005 Oct 21

Other

OtherInternational Astronautical Federation - 56th International Astronautical Congress 2005
CountryJapan
CityFukuoka
Period05/10/1705/10/21

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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