- By:
- Klepper, Conrad ; Hillis, Donald L; Isler, Ralph C; Hillairet, J.; Martin, E. H.; Colas, L.; Ekedahl, A.; Goniche, M.; Lotte, P.H.; Colledani, G.; Martin, V.; Panayotis, Stephanie; Pegourie, B.; Harris, Jeffrey H
- Journal Name:
- Journal of Nuclear Materials
- Page Number:
- 1232-1236
- Volume:
- 438
- Issue Number:
- N/A
- Publication Date:
- March 26, 2014
- Conference Name:
- 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI)
- Conference Location:
- Aachen, Germany
- View DOI Listing:
- https://doi.org/10.1016/j.jnucmat.2013.01.273
Abstract
Balmer-series spectral line profiles of deuterium emission near a lower-hybrid (3.7 GHz) wave, high power (1-4 MW) launcher were measured with high-spectral resolution in the Tore Supra tokamak and fitted to an atomic physics model which includes both Zeeman and dynamic Stark effects. The magnetic field is static and the electric field is assumed to be monochromatic at 3.7 GHz. The determined strength and direction of the high-frequency electric field is found to be in good agreement with the results of a simulation that computes the propagation of these lower hybrid waves into the plasma in the region around the launch antenna and specifically in the region of estimated peak emission contributing to the measurement. This agreement indicates feasibility for the use of dynamic Stark effect spectroscopy to study interaction at the plasma antenna interactions in a fusion plasma environment. (C) 2013 Elsevier B. V. All rights reserved.
