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Structure and motion of edge turbulence in the National Spherical Torus Experiment and Alcator C-Mod
- Source :
- Physics of Plasmas. 13:056114
- Publication Year :
- 2006
- Publisher :
- AIP Publishing, 2006.
-
Abstract
- In this paper we compare the structure and motion of edge turbulence observed in L-mode vs. H-mode plasmas in the National Spherical Torus Experiment (NSTX) [M. Ono, M. G. Bell, R. E. Bell et al., Plasma Phys. Controlled Fusion 45, A335 (2003)]. The radial and poloidal correlation lengths are not significantly different between the L-mode and the H-mode in the cases examined. The poloidal velocity fluctuations are lower and the radial profiles of the poloidal turbulence velocity are somewhat flatter in the H-mode compared with the L-mode plasmas. These results are compared with similar measurements Alcator C-Mod [E. Marmar, B. Bai, R. L. Boivin et al., Nucl. Fusion 43, 1610 (2003)], and with theoretical models.
Details
- ISSN :
- 10897674 and 1070664X
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- Physics of Plasmas
- Accession number :
- edsair.doi...........c8ac761d52bd726354ac55c3c302ae04