| Autor: |
Lin, Y., Wukitch, S.J., Bonoli, P.T., Mazurenko, A., Nelson-Melby, E., Porkolab, M., Wright, J.C., Hutchinson, I.H., Marmar, E.S., Mossessian, D., Wolfe, S., Phillips, C.K., Schilling, G., Phillips, P. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2003, Vol. 694 Issue 1, p50-57, 8p |
| Abstrakt: |
ICRF mode conversion (MC) in H(3He, D) and D(H) plasmas have been studied in detail in Alcator C-Mod. In H(3He, D) plasma, the mode converted ion cyclotron wave (MC ICW) was observed in tokamak plasmas for the first time using a phase contrast imaging system. The MC ICW was observed in the low field side of the ion-ion hybrid layer, and generally had a wavelength in-between the fast wave and the MC ion Bernstein wave (IBW). Localized mode conversion electron heating (MCEH) has been clearly observed for the first time in D(H) plasmas with moderate hydrogen concentration in Alcator C-Mod. Both on- and off-axis (high field side) MCEH have been studied. The MCEH profile was obtained from a break in slope analysis of Te signals in the presence of rf shut-off. The experimental profiles were qualitatively in agreement with the predictions of the two-dimensional full-wave poloidal mode code TORIC. The electron heating contributions from MC ICW and MC IBW are examined from the TORIC simulations. © 2003 American Institute of Physics [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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