Injection of hydrogen and ethylene at the plasma edge of TJ-II: A comparative study

F. L. Tabarés, I. García-Cortés, D. Tafalla, E. De La Cal, J. A. Ferreira, A. Hidalgo, J. M. Carmona, K. J. McCarthy, V. I. Vargas

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

Injection of H2 and C2H4 through mobile limiter and into different magnetic configurations has been performed in TJ-II ECH plasmas. - Little plasma contamination by ethylene is seen under most conditions. - A factor of 7 less Ha emission than in H2 puffing is produced from ethylene cracking. - Locally deposited carbon layers drive enhanced contamination when limiter is inserted at the plasma edge. - Small fuelling efficiency is consistent with previous reported data for other hydrocarbons5. - Strong hydrogen built up in deposited layers associated with ethylene injection has been deduced. - All these observations agree with prompt cracking and ionization of injected hydrocarbon, leading to local carbon layer deposition.

Idioma originalInglés
Título de la publicación alojada32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
Páginas1398-1401
Número de páginas4
EstadoPublicada - 2005
Publicado de forma externa
Evento32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets - Tarragona, Espana
Duración: 27 jun 20051 jul 2005

Serie de la publicación

Nombre32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
Volumen2

Conferencia

Conferencia32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets
País/TerritorioEspana
CiudadTarragona
Período27/06/051/07/05

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