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Title: Wall charging of a helicon antenna wrapped plasma filled dielectric tube

Abstract

Dielectric wall charging of a cylindrical glass wall surrounded by a helicon antenna of 18 cm length is measured in a linear helicon plasma device with a diverging magnetic field. The ions because of their lesser mobility do not respond to the high frequency electric field and the electrons charge the wall to a negative DC potential also known as the DC self-bias. The wall potential in this device is characterized for different neutral pressure, magnetic field, and radio frequency (RF) power. Axial variation of wall potential shows higher self-bias potentials near the antenna rings. Ion magnetization in the source chamber increases both wall charging and plasma potential of the source due to confinement.

Authors:
; ;  [1]
  1. Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)
Publication Date:
OSTI Identifier:
22408034
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANTENNAS; CONFINEMENT; CYLINDRICAL CONFIGURATION; DIELECTRIC MATERIALS; ELECTRIC FIELDS; ELECTRONS; GLASS; ION MOBILITY; MAGNETIC FIELDS; MAGNETIZATION; PLASMA; PLASMA POTENTIAL; POTENTIALS; RADIOWAVE RADIATION; TUBES; WALLS

Citation Formats

Barada, Kshitish K., E-mail: kbarada@physics.ucla.edu, Chattopadhyay, P. K., E-mail: pkchatto@ipr.res.in, Ghosh, J., Saxena, Y. C., and Bora, D. Wall charging of a helicon antenna wrapped plasma filled dielectric tube. United States: N. p., 2015. Web. doi:10.1063/1.4906360.
Barada, Kshitish K., E-mail: kbarada@physics.ucla.edu, Chattopadhyay, P. K., E-mail: pkchatto@ipr.res.in, Ghosh, J., Saxena, Y. C., & Bora, D. Wall charging of a helicon antenna wrapped plasma filled dielectric tube. United States. https://doi.org/10.1063/1.4906360
Barada, Kshitish K., E-mail: kbarada@physics.ucla.edu, Chattopadhyay, P. K., E-mail: pkchatto@ipr.res.in, Ghosh, J., Saxena, Y. C., and Bora, D. 2015. "Wall charging of a helicon antenna wrapped plasma filled dielectric tube". United States. https://doi.org/10.1063/1.4906360.
@article{osti_22408034,
title = {Wall charging of a helicon antenna wrapped plasma filled dielectric tube},
author = {Barada, Kshitish K., E-mail: kbarada@physics.ucla.edu and Chattopadhyay, P. K., E-mail: pkchatto@ipr.res.in and Ghosh, J. and Saxena, Y. C. and Bora, D.},
abstractNote = {Dielectric wall charging of a cylindrical glass wall surrounded by a helicon antenna of 18 cm length is measured in a linear helicon plasma device with a diverging magnetic field. The ions because of their lesser mobility do not respond to the high frequency electric field and the electrons charge the wall to a negative DC potential also known as the DC self-bias. The wall potential in this device is characterized for different neutral pressure, magnetic field, and radio frequency (RF) power. Axial variation of wall potential shows higher self-bias potentials near the antenna rings. Ion magnetization in the source chamber increases both wall charging and plasma potential of the source due to confinement.},
doi = {10.1063/1.4906360},
url = {https://www.osti.gov/biblio/22408034}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 1,
volume = 22,
place = {United States},
year = {Thu Jan 15 00:00:00 EST 2015},
month = {Thu Jan 15 00:00:00 EST 2015}
}