Fluctuation in a Helicon plasma with additional immersed antenna

Ane Aanesland; Christine Charles; Rod Boswell; Åshild Fredriksen

doi:10.1109/TPS.2005.845133

Fluctuation in a Helicon plasma with additional immersed antenna

Ane Aanesland^*, Christine Charles, Rod Boswell, Åshild Fredriksen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Fluctuations in the floating potential are measured in a cylindrical magnetised plasma, as the phase between a "primary" Helicon antenna and a "secondary" immersed antenna is varied. The two antennas are powered by separate radio frequency (RF) generators of 13.56 MHz controlled by a single oscillator and phase shifter. The Helicon antenna is separated from the plasma by a glass tube, while the immersed copper antenna is in direct contact with the plasma. The image presented here shows floating potential fluctuations of ∼100 Hz where the amplitude of the fluctuations vary dramatically with the phase between the two RF generators.

Original language	English
Pages (from-to)	360-361
Number of pages	2
Journal	IEEE Transactions on Plasma Science
Volume	33
Issue number	2 I
DOIs	https://doi.org/10.1109/TPS.2005.845133
Publication status	Published - Apr 2005

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title = "Fluctuation in a Helicon plasma with additional immersed antenna",

abstract = "Fluctuations in the floating potential are measured in a cylindrical magnetised plasma, as the phase between a {"}primary{"} Helicon antenna and a {"}secondary{"} immersed antenna is varied. The two antennas are powered by separate radio frequency (RF) generators of 13.56 MHz controlled by a single oscillator and phase shifter. The Helicon antenna is separated from the plasma by a glass tube, while the immersed copper antenna is in direct contact with the plasma. The image presented here shows floating potential fluctuations of ∼100 Hz where the amplitude of the fluctuations vary dramatically with the phase between the two RF generators.",

keywords = "Dual antenna generated plasmas, Fluctuations, Radio frequency plasma",

author = "Ane Aanesland and Christine Charles and Rod Boswell and {\AA}shild Fredriksen",

year = "2005",

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doi = "10.1109/TPS.2005.845133",

language = "English",

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issn = "0093-3813",

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T1 - Fluctuation in a Helicon plasma with additional immersed antenna

AU - Aanesland, Ane

AU - Charles, Christine

AU - Boswell, Rod

AU - Fredriksen, Åshild

PY - 2005/4

Y1 - 2005/4

N2 - Fluctuations in the floating potential are measured in a cylindrical magnetised plasma, as the phase between a "primary" Helicon antenna and a "secondary" immersed antenna is varied. The two antennas are powered by separate radio frequency (RF) generators of 13.56 MHz controlled by a single oscillator and phase shifter. The Helicon antenna is separated from the plasma by a glass tube, while the immersed copper antenna is in direct contact with the plasma. The image presented here shows floating potential fluctuations of ∼100 Hz where the amplitude of the fluctuations vary dramatically with the phase between the two RF generators.

AB - Fluctuations in the floating potential are measured in a cylindrical magnetised plasma, as the phase between a "primary" Helicon antenna and a "secondary" immersed antenna is varied. The two antennas are powered by separate radio frequency (RF) generators of 13.56 MHz controlled by a single oscillator and phase shifter. The Helicon antenna is separated from the plasma by a glass tube, while the immersed copper antenna is in direct contact with the plasma. The image presented here shows floating potential fluctuations of ∼100 Hz where the amplitude of the fluctuations vary dramatically with the phase between the two RF generators.

KW - Dual antenna generated plasmas

KW - Fluctuations

KW - Radio frequency plasma

UR - http://www.scopus.com/inward/record.url?scp=18844458297&partnerID=8YFLogxK

U2 - 10.1109/TPS.2005.845133

DO - 10.1109/TPS.2005.845133

M3 - Article

SN - 0093-3813

VL - 33

SP - 360

EP - 361

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

IS - 2 I

ER -

Fluctuation in a Helicon plasma with additional immersed antenna

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