E- to H-mode Transition in Inductively Coupled Xenon Discharge Lamp
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概要
- 論文の詳細を見る
In this paper the phenomena of mode transition and hysteresis in xenon ICP (Inductively Coupled Plasma) discharge are studied. Xenon has been used as an alternative for mercury since there are environmental issues related to mercury. The transition from E-mode (electrostatic mode) discharge to H-mode (electromagnetic mode) discharge in a xenon cylindrical tube was investigated. RF energy at 13.56MHz was induced to the tube through matching network. In this study, all the transitions occurred at a certain threshold input power which is a function of the xenon pressure. Hysteresis was observed as the input power was varied from 1 to 100W. When the input power is increased the discharge starts in E-mode changes into H-mode, whereas when the input power is decreased the H-mode turns into the E-mode or there is a sudden switch-off as the function of the gas pressures. Mode transition is determined by sudden and huge change of luminance. H-mode is characterized by a much higher luminance and plasma density. Luminance and optical emission spectra were recorded. At high pressure more power is required to transform the discharge mode compared to low pressure. Continuum visible emission was obtained only in H-mode. At H-mode, many ionic and atomic spectrum are observed compared to E-mode. With high luminance and continuum visible emission that obtained from H-mode xenon ICP discharge, xenon is one of the most suitable alternatives in developing mercury-free light sources.
- 社団法人照明学会の論文
著者
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NAZRI Ahmad
Department of Electrical and Electronic Engineering, Ehime University
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青野 正明
Department Of Electrical And Electronic Engineering Ehime University
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Nazri Ahmad
Department Of Electrical And Electronic Engineering Ehime University
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Aono M
Nanoscale Quantum Conductor Array Project Icorp Japan Science And Technology Agency (jst)
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Aono Masakazu
The Institute Of Physical And Chemical Research (riken)
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Aono Masakazu
Aono Atomcraft Project Research Development Corporation Of Japan (jrdc):the Institute Of Physical An
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Jinno Masafumi
Department Of Electrical And Electronic Engineering Graduate School Of Science And Engineering Ehime
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AONO Masaharu
Department of Electrical and Electronic Engineering, Ehime University
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NAZRI Ahmad
Dept. of Electrical and Electronic Engineering, Faculty of Engineering, Ehime University
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INUI Shuji
Dept. of Electrical and Electronic Engineering, Faculty of Engineering, Ehime University
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MOTOMURA Hideki
Dept. of Electrical and Electronic Engineering, Faculty of Engineering, Ehime University
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JINNO Masafumi
Dept. of Electrical and Electronic Engineering, Faculty of Engineering, Ehime University
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AONO Masaharu
Dept. of Electrical and Electronic Engineering, Faculty of Engineering, Ehime University
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Inui Shuji
Dept. Of Electrical And Electronic Engineering Faculty Of Engineering Ehime University
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Aono Masaharu
Dept. Of Electrical And Electronic Engineering Faculty Of Engineering Ehime University
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Motomura Hideki
Department Of Electrical And Electronic Engineering Ehime University
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Motomura Hideki
Department Of Electrical And Electronic Engineering Graduate School Of Science And Engineering Ehime
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