Hauptseite > Publikationsdatenbank > Spectra polarimetry of the motional stark effect at TEXTOR-94 > print

001     45676
005     20240711113907.0
017 _ _ |a This version is available at the following Publisher URL: http://rsi.aip.org
024 7 _ |a 10.1063/1.1319611
|2 DOI
024 7 _ |a WOS:000166141600165
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024 7 _ |a 2128/1863
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037 _ _ |a PreJuSER-45676
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Instruments & Instrumentation
084 _ _ |2 WoS
|a Physics, Applied
100 1 _ |a Jaspers, R.
|b 0
|0 P:(DE-Juel1)VDB3745
245 _ _ |a Spectra polarimetry of the motional stark effect at TEXTOR-94
260 _ _ |a [S.l.]
|b American Institute of Physics
|c 2001
300 _ _ |a 1018 - 1022
336 7 _ |a Journal Article
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336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
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336 7 _ |a article
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440 _ 0 |a Review of Scientific Instruments
|x 0034-6748
|0 5309
|y 1
|v 72
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a The Balmer-alpha light emitted by neutral particles injected into tokamaks is polarized with respect to the Lorentz electric field experienced by these atoms: E-l = nu xB, known as the motional Stark effect (MSE). On TEXTOR-94 a new MSE system is under development which exploits the full spectral information, along with its polarization. The advantages of exploiting the full spectral information are obvious: beam velocity, observation volume, absolute value of B, the plasma radial electric field and the beam density can in principle all be extracted from the measurement, whereas the polarization can be detected as several lines simultaneously. The TEXTOR-94 MSE system consists of 30 radial channel, of which the full Balmer-alpha spectrum is measured at two orthogonal angles. This is accomplished by inserting a Glan-Laser prism in the optical path. All the optics is located inside the vessel to improve the radial resolution and minimize changes in polarization due to optical elements. Fibers transfer the light by a vacuum feedthrough towards a spectrometer. It is shown that the measured spectra can be adequately fitted. The accuracy for determining the safety factor q is estimated to be 10%-15% and for the radial electric field to be 30 kV/m. (C) 2001 American Institute of Physics.
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700 1 _ |a Elzendoorn, B. S. Q.
|b 1
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700 1 _ |a Donne, A. J. H.
|b 2
|0 P:(DE-Juel1)VDB3444
700 1 _ |a Soetens, T.
|b 3
|0 P:(DE-Juel1)VDB7310
773 _ _ |a 10.1063/1.1319611
|g Vol. 72, p. 1018 - 1022
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|0 PERI:(DE-600)1472905-2
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