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Title: Plasma polarization spectroscopy of atomic and molecular emissions from magnetically confined plasmas
Authors: Shikama, T.  kyouindb  KAKEN_id
Fujii, K.  kyouindb  KAKEN_id
Kado, S.
Zushi, H.
Sakamoto, M.
Iwamae, A.
Goto, M.
Morita, S.
Hasuo, M.  kyouindb  KAKEN_id
Author's alias: 四竈, 泰一
Issue Date: May-2011
Publisher: Canadian Science Publishing
Journal title: Canadian Journal of Physics
Volume: 89
Issue: 5
Start page: 495
End page: 501
Abstract: In spectroscopic measurements of magnetically confined torus plasmas, the line-integrated emission along a viewing chord is usually observed. However, by utilizing the dependence of the magnitude of the Zeeman splitting on the emission location, a few localized emissions existing along the viewing chord can be separated. A detailed analysis of the Zeeman split spectral lineshapes then makes it possible to evaluate the local values of the magnetic field strength, population density, temperature, and flow velocity. We have introduced polarization spectroscopy to improve the accuracy in separating the overlapped spectra. The polarization resolved Hα, He I, and H2 Fulcher-α band spectra are measured in the TRIAM-1M tokamak, and the atomic and molecular dynamics are investigated. Further progress in the simultaneous measurements of the Balmer series and Fulcher-α band spectra in LHD, and extension to the CH Gerö band spectra, are briefly presented.
Rights: © Copyright 2011 – Canadian Science Publishing
This is not the published version. Please cite only the published version.
DOI(Published Version): 10.1139/p10-118
Appears in Collections:Journal Articles

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