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Koubiti, M.*; Nakano, Tomohide; Capes, H.*; Marandet, Y.*; Mekkaoui, A.*; Mouret, L.*; Rosato, J.*; Stamm, R.*
Contributions to Plasma Physics, 52(5-6), p.455 - 459, 2012/06
Times Cited Count:4 Percentile:17.66(Physics, Fluids & Plasmas)The spectral profile of C IV (=6-7) measured from the strong radiation zone (X-point MARFE) in a detached plasma of JT-60U with a high resolution spectrometer was analyzed by PPP code. In the previous analysis, a spectral profile calculated by the PPP code with an input of single pair of electron density and temperature was compared to the measured spectral profile. It was found that the spectral profiles measured around the X-point MARFE were reproduced with the calculated spectral profile but the ones measured at the center of the X-point MARFE were not. In the present analysis, two spectral profiles were calculated with two pairs of electron density and temperature and were summed up, leading to successful reproduction of the measured spectral profile. The two pairs of electron density and temperature used for the calculation were 110 m and 23.0 eV, and 610 m and 2.5 eV, respectively, with a mixture ratio of 65:35.
Koubiti, M.*; Nakano, Tomohide; Capes, H.*; Marandet, Y.*; Mouret, L.*; Rosato, J.*; Stamm, R.*
Proceedings of 37th European Physical Society Conference on Plasma Physics (EPS 2010) (CD-ROM), 4 Pages, 2010/06
The C IV ( = 6-7) spectral lines emitted from the JT-60U detachedplasmas were observed with a high-wavelength resolution spectrometer and theprofiles were analyzed with a PPP code. The analysis indicates that thespectral profiles were broadened with both the Doppler and the Starkeffects. From these effects, the electron temperature and density wereevaluated. Along the viewing chord for the X-point, the electron temperatureand density was determined to be 3 eV and 710m, respectively. These are similar to those determined from the intensity ratioof C IV lines (6.3 eV and 7.8 10 m, respectively). The high density plasma around the X-point was confirmed withthese independent methods.
Koubiti, M.*; Nakano, Tomohide; Capes, H.*; Ferri, S.*; Godbert-Mouret, L.*; Marandet, Y.*; Rosato, J.*; Stamm, R.*
Journal of Nuclear Materials, 390-391, p.1142 - 1144, 2009/06
Times Cited Count:3 Percentile:24.47(Materials Science, Multidisciplinary)no abstracts in English
Koubiti, M.*; Nakano, Tomohide; Capes, H.*; Marandet, Y.*; Mouret, L.*; Rosato, J.*; Stamm, R.*
Europhysics Conference Abstracts (CD-ROM), 31F, 4 Pages, 2007/00
no abstracts in English