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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

A measurement method of absolute hydrogen atom density in plasmas by (2+1)-photon laser-induced fluorescence spectroscopy

http://hdl.handle.net/2237/7046
http://hdl.handle.net/2237/7046
1ca805b1-afa7-4842-9c7f-ae448f887442
名前 / ファイル ライセンス アクション
RevSciInstrum_72_2298.pdf RevSciInstrum_72_2298.pdf (182.7 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2006-10-24
タイトル
タイトル A measurement method of absolute hydrogen atom density in plasmas by (2+1)-photon laser-induced fluorescence spectroscopy
言語 en
著者 Sasaki, K.

× Sasaki, K.

WEKO 13978

en Sasaki, K.

Search repository
Nakamoto, M.

× Nakamoto, M.

WEKO 13979

en Nakamoto, M.

Search repository
Kadota, K.

× Kadota, K.

WEKO 13980

en Kadota, K.

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 Copyright (2001) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
抄録
内容記述 A technique of (2+1)-photon laser-induced fluorescence (LIF) spectroscopy has been developed for measuring hydrogen atom density in plasmas. In this method, the following two-step excitation scheme is employed to excite ground-state H atoms to the 4p state. In the first step, H atoms at the ground (1s) state are excited to the 2s state by two photons at a wavelength of 243 nm. Subsequently, the 2s state is excited to the 4p state by the third photon at 486 nm in the second step. Fluorescence emission at 486 nm (4p→2s, H_β line)is detected to determine the H atom density at the ground state. Since the wavelength used in the first-step excitation is the half of the wavelength used in the second-step excitation, one tunable laser with a system for second harmonic generation can be utilized in the measurement. The absolute density was evaluated by comparing the intensity of LIF emission from H with that from Xe at a known gas pressure. The present method is suitable for diagnostics of reactive plasmas since optical dissociation of molecules and radicals can be avoided because of the low photon energy of the laser radiation.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 American Institute of Physics
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1063/1.1367356
ISSN
収録物識別子タイプ PISSN
収録物識別子 0034-6748
書誌情報 en : Review of Scientific instruments

巻 72, 号 5, p. 2298-2304, 発行日 2001-05
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/7046
識別子タイプ HDL
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