WEKO3
-
RootNode
アイテム
Polarization of Electron Cyclotron Emission Spectra in LHD
http://hdl.handle.net/10655/2301
http://hdl.handle.net/10655/2301d1fb7f57-9a92-43eb-8b98-217d80949669
| Item type | 研究報告書 / Research Paper(1) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2010-02-05 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Polarization of Electron Cyclotron Emission Spectra in LHD | |||||||||||||||||
| 言語 | en | |||||||||||||||||
| 言語 | ||||||||||||||||||
| 言語 | eng | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | ECE emission | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Mode conversion | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 言語 | en | |||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Diagnostics | |||||||||||||||||
| 資源タイプ | ||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||||||||||||||
| 資源タイプ | research report | |||||||||||||||||
| アクセス権 | ||||||||||||||||||
| アクセス権 | metadata only access | |||||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||||||||
| 著者 |
de, Vries, P.C.
× de, Vries, P.C.
× Nagayama, Y.
× Kawahata, K.
× Inagaki, S.
× Sasao, H.
× Nagasaki, K.
|
|||||||||||||||||
| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | Electron cyclotron emission (ECE) can be used to determine the electron temperature proflle in magnetized plasmas. The complex structure of the magnetic fleld configuration in the Large Helical Device (LHD), which has a large shear, complicates the analysis of the ECE spectrum. In a sheared magnetic field the propagation of X and O-mode polarization through the plasma are coupled, causing mode conversion and polarization rotation. Mode scrambling is also caused by wall reflections. In this report, this mode conversion in LHD is numcrically analyzed. It was found that at low density mode conversion scrambles the ECE spectra. However, at higher density (n_eo > 1.0 10^19 m^-3) the polarization mode is found to rotate with the sheared magnetic fileld, yielding only a negligible mode conversion. Wall reflections are found to depolarize the ECE spectrum. Notwithstanding the LHD magnetic configuration, it is shown that temperature profiles could be revealed from the ECE spectra. | |||||||||||||||||
| 書誌情報 |
en : Research Report NIFS-Series 発行日 1999-07-01 |
|||||||||||||||||
| 報告書番号 | ||||||||||||||||||
| NIFS-603 | ||||||||||||||||||
| ISSN | ||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||
| 収録物識別子 | 0915-633X | |||||||||||||||||
Share
Cite as
de, Vries, P.C., Nagayama, Y., Kawahata, K., Inagaki, S., Sasao, H., Nagasaki, K., 1999, Polarization of Electron Cyclotron Emission Spectra in LHD.
