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Title: Extracted ion current density in close-coupling multi-antenna type radio frequency driven ion source: CC-MATIS

Abstract

Positive ions are extracted by using a small extractor from the Close-Coupling Multi-Antenna Type radio frequency driven Ion Source. Two types of RF antenna are used. The maximum extracted ion current density reaches 0.106 A/cm{sup 2}. The RF net power efficiency of the extracted ion current density under standard condition is 11.6 mA/cm{sup 2}/kW. The efficiency corresponds to the level of previous beam experiments on elementary designs of multi-antenna sources, and also to the efficiency level of a plasma driven by a filament in the same chamber. The multi-antenna type RF plasma source is promising for all metal high density ion sources in a large volume chamber.

Authors:
 [1]
  1. Nagoya University, Chikusa, Nagoya 464-8603 (Japan)
Publication Date:
OSTI Identifier:
22254179
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 85; Journal Issue: 2; Conference: ICIS 2011: 14. international conference on ion sources, Giardini-Naxos, Sicily (Italy), 12-16 Sep 2011; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANTENNAS; CATIONS; CURRENT DENSITY; EFFICIENCY; ION BEAMS; ION DENSITY; METALS; PLASMA; RADIOWAVE RADIATION

Citation Formats

Oka, Y., E-mail: oka@sc.starcat.ne.jp, E-mail: oka@LHD.nifs.ac.jp, and Shoji, T. Extracted ion current density in close-coupling multi-antenna type radio frequency driven ion source: CC-MATIS. United States: N. p., 2014. Web. doi:10.1063/1.4830363.
Oka, Y., E-mail: oka@sc.starcat.ne.jp, E-mail: oka@LHD.nifs.ac.jp, & Shoji, T. Extracted ion current density in close-coupling multi-antenna type radio frequency driven ion source: CC-MATIS. United States. https://doi.org/10.1063/1.4830363
Oka, Y., E-mail: oka@sc.starcat.ne.jp, E-mail: oka@LHD.nifs.ac.jp, and Shoji, T. 2014. "Extracted ion current density in close-coupling multi-antenna type radio frequency driven ion source: CC-MATIS". United States. https://doi.org/10.1063/1.4830363.
@article{osti_22254179,
title = {Extracted ion current density in close-coupling multi-antenna type radio frequency driven ion source: CC-MATIS},
author = {Oka, Y., E-mail: oka@sc.starcat.ne.jp, E-mail: oka@LHD.nifs.ac.jp and Shoji, T.},
abstractNote = {Positive ions are extracted by using a small extractor from the Close-Coupling Multi-Antenna Type radio frequency driven Ion Source. Two types of RF antenna are used. The maximum extracted ion current density reaches 0.106 A/cm{sup 2}. The RF net power efficiency of the extracted ion current density under standard condition is 11.6 mA/cm{sup 2}/kW. The efficiency corresponds to the level of previous beam experiments on elementary designs of multi-antenna sources, and also to the efficiency level of a plasma driven by a filament in the same chamber. The multi-antenna type RF plasma source is promising for all metal high density ion sources in a large volume chamber.},
doi = {10.1063/1.4830363},
url = {https://www.osti.gov/biblio/22254179}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 2,
volume = 85,
place = {United States},
year = {Sat Feb 15 00:00:00 EST 2014},
month = {Sat Feb 15 00:00:00 EST 2014}
}