Applicability of Laser Imaging System Using a Near Infrared Laser to Measure Density Fluctuations in High-Temperature Plasmas
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概要
- 論文の詳細を見る
A new type of laser imaging method using a near infrared laser rather than a CO2 one (10.6 μm) is developed and its applicability to the density fluctuation measurement in high-temperature plasmas is evaluated. A near-infrared yttrium aluminum garnet (YAG) laser system is installed on the Compact Helical System (CHS) at the National Institute for Fusion Science (NIFS). The applicability of this laser imaging method to a middle sized toroidal device is tested. The minimum detectable signal level of $6.9\times 10^{11}$ cm-2 for the density fluctuation has been obtained, which is required for practical use.
- 2004-05-15
著者
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MATSUOKA Keisuke
National Institute for Fusion Science
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MATSUO Keiji
Department of Energy Conversion, Graduate School of Engineering Sciences, Kyushu University
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Iguchi Harukazu
National Institute For Fusion Science
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OKAMURA Shoichi
National Institute for Fusion Science
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KAWAKUBO Masafumi
Department of Electrical Engineering, Faculty of Engineering, Fukuoka Institute of Technology
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Uchida Nana
Department Of Electrical Engineering Faculty Of Engineering Fukuoka Institute Of Technology
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Kado Shinichiro
High Temperature Plasma Center The University Of Tokyo
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Kado Shinichiro
High Temperature Plasma Center, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku 113-8656, Japan
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Matsuoka Keisuke
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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Kawakubo Masafumi
Department of Electrical Engineering, Faculty of Engineering, Fukuoka Institute of Technology, Wajirohigashi 3-30-1 Higashi-ku, Fukuoka 811-0295, Japan
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Iguchi Harukazu
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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Matsuo Keiji
Department of Electrical Engineering, Faculty of Engineering, Fukuoka Institute of Technology, Wajirohigashi 3-30-1 Higashi-ku, Fukuoka 811-0295, Japan
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Okamura Shoichi
National Institute for Fusion Science, Oroshi 322-6, Toki 509-5292, Japan
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Uchida Nana
Department of Electrical Engineering, Faculty of Engineering, Fukuoka Institute of Technology, Wajirohigashi 3-30-1 Higashi-ku, Fukuoka 811-0295, Japan
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