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Title: Effect of magnetic field configuration on the multiply charged ion and plume characteristics in Hall thruster plasmas

Multiply charged ions and plume characteristics in Hall thruster plasmas are investigated with regard to magnetic field configuration. Differences in the plume shape and the fraction of ions with different charge states are demonstrated by the counter-current and co-current magnetic field configurations, respectively. The significantly larger number of multiply charged and higher charge state ions including Xe{sup 4+} are observed in the co-current configuration than in the counter-current configuration. The large fraction of multiply charged ions and high ion currents in this experiment may be related to the strong electron confinement, which is due to the strong magnetic mirror effect in the co-current magnetic field configuration.
Authors:
; ; ;  [1] ;  [2]
  1. Department of Physics, Korea Advanced Institute of Science and Technology 291 Daehak-ro, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)
  2. Department of Astronomy and Space Science, Kyung Hee University 1732 Deokyoungdaero, Giheung-gu, Yongin-si, Gyeonggi-do 446-701 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22398915
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 15; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CHARGE STATES; COUNTER CURRENT; ELECTRIC CURRENTS; ELECTRONS; HALL EFFECT; MAGNETIC FIELD CONFIGURATIONS; MAGNETIC MIRRORS; MULTICHARGED IONS; PLASMA; PLASMA CONFINEMENT; THRUSTERS; XENON IONS