Development of high sensitivity electric field measurement method in plasmas by saturation spectroscopy using a diode laser
Project/Area Number |
24540529
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Plasma science
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Research Institution | Hokkaido University |
Principal Investigator |
NISHIYAMA Shusuke 北海道大学, 工学(系)研究科(研究院), 助教 (30333628)
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Co-Investigator(Kenkyū-buntansha) |
SASAKI Koichi 北海道大学, 大学院工学研究院, 教授 (50235248)
GOTO Motoshi 核融合科学研究所, ヘリカル研究部, 准教授 (00290916)
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Research Collaborator |
TAKIZAWA Kazuki
NAKANO Haruhisa
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Project Period (FY) |
2012-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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Keywords | プラズマ計測 / シュタルク分光 / 飽和吸収分光 / シース電界 / 電界計測 |
Outline of Final Research Achievements |
Conventional methods of high sensitivity electric field measurement in plasmas are Stark spectroscopy with a high power tunable laser. In this work, we applied saturation spectroscopy, which is high resolution Doppler-free spectroscopy, to Stark spectroscopy in plasmas with a tunable diode laser. Direct detection of Stark effect in sheath region is achieved for atomic hydrogen Balmer-alpha line with absorption sensitivity enhancement method.
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Report
(4 results)
Research Products
(23 results)
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[Journal Article] Hydrogen Atom Temperature Measured with Wavelength-Modulated Laser Absorption Spectroscopy in Large Scale Filament Arc negative Hydrogen Ion Source2015
Author(s)
H. Nakano, S. Nishiyama, M. Goto, K. Tsumori, M. Kisaki, K. Ikeda, K. Nag aoka, M. Osakabe, Y. Takeiri, O. Kaneko, K. Sasaki
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Journal Title
AIP Conference Proceedings
Volume: 1655
Pages: 020018-020018
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Hydrogen Atom Temperature Measured with Wavelength-Modulated Laser Absorption Spectroscopy in Large Scale Filament Arc negative Hydrogen Ion Source2014
Author(s)
H. Nakano, S. Nishiyama, M. Goto, K. Tsumori, M. Kisaki, K. Ikeda, K. Nag aoka, M. Osakabe, Y. Takeiri, O. Kaneko, K. Sasaki
Organizer
4th International Symposium on Negative Ions, Beams and Sources
Place of Presentation
Garching, Germany
Year and Date
2014-10-06 – 2014-10-10
Related Report
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