Abstract
During pellet injection in the Tore Supra tokamak, a very quick electron temperature drop in the whole plasma column has been observed by means of a fast acquisition ECE Fabry-Perot interferometers system. The time delay of the temperature drop between plasma edge and center is less than 20 microseconds, corresponding to a propagation velocity of the order of 25 km/s, much larger than both the pellet velocity and the ordinary diffusion velocity. A model of neutral atom diffusion, in which charge-exchange process plays a key role, is proposed to explain such phenomena.
Talvard, M;
[1]
Liu, W D
[1]
- Association Euratom-CEA, Centre d`Etudes de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee
Citation Formats
Talvard, M, and Liu, W D.
Rapid global response of the electron temperature during pellet injection on Tore Supra.
France: N. p.,
1993.
Web.
Talvard, M, & Liu, W D.
Rapid global response of the electron temperature during pellet injection on Tore Supra.
France.
Talvard, M, and Liu, W D.
1993.
"Rapid global response of the electron temperature during pellet injection on Tore Supra."
France.
@misc{etde_10127517,
title = {Rapid global response of the electron temperature during pellet injection on Tore Supra}
author = {Talvard, M, and Liu, W D}
abstractNote = {During pellet injection in the Tore Supra tokamak, a very quick electron temperature drop in the whole plasma column has been observed by means of a fast acquisition ECE Fabry-Perot interferometers system. The time delay of the temperature drop between plasma edge and center is less than 20 microseconds, corresponding to a propagation velocity of the order of 25 km/s, much larger than both the pellet velocity and the ordinary diffusion velocity. A model of neutral atom diffusion, in which charge-exchange process plays a key role, is proposed to explain such phenomena.}
place = {France}
year = {1993}
month = {Jun}
}
title = {Rapid global response of the electron temperature during pellet injection on Tore Supra}
author = {Talvard, M, and Liu, W D}
abstractNote = {During pellet injection in the Tore Supra tokamak, a very quick electron temperature drop in the whole plasma column has been observed by means of a fast acquisition ECE Fabry-Perot interferometers system. The time delay of the temperature drop between plasma edge and center is less than 20 microseconds, corresponding to a propagation velocity of the order of 25 km/s, much larger than both the pellet velocity and the ordinary diffusion velocity. A model of neutral atom diffusion, in which charge-exchange process plays a key role, is proposed to explain such phenomena.}
place = {France}
year = {1993}
month = {Jun}
}