Title :
NSTX Boundary Plasma Measurement by Fast Camera and Interpretations
Author :
Nishino, N. ; Kaita, R. ; Roquemore, L. ; Maqueda, R. ; Zweben, S. ; Bush, C. ; Johnson, D. ; Kugel, H. ; Maingi, R. ; Soukhanovskii, V. ; NSTX Team
Author_Institution :
Hiroshima Univ.
Abstract :
Edge localized modes (ELMs), edge turbulence and other fluctuations in the edge region of NSTX plasma are observed by fast cameras. ELMs categorized as Type I, III, and V are found in NSTX and other MARFE-like activity is seen near the center stack in double null plasmas. Edge turbulence filaments are almost always found in NSTX. An interpretation of ELM images, which shows a complex ELMs structure, is presented
Keywords :
Tokamak devices; plasma boundary layers; plasma fluctuations; plasma toroidal confinement; plasma turbulence; ELM images; ITER relevant power; MARFE-like activity; NSTX boundary plasma measurement; National Spherical Torus Experiment; Type I ELM; Type III ELM; Type V ELM; center stack; double null plasmas; edge fluctuations; edge localized modes; edge turbulence filaments; fast camera; Cameras; Fluctuations; Photonics; Physics; Plasma diagnostics; Plasma measurements; Plasma x-ray sources; Radio frequency; Radiofrequency identification; Tokamaks; ELM; ITER relevant; NSTX; component; edge turbulence; fast camera; filament; fluctuation;
Conference_Titel :
Fusion Engineering 2005, Twenty-First IEEE/NPS Symposium on
Conference_Location :
Knoxville, TN
Print_ISBN :
0-4244-0150-X
Electronic_ISBN :
0-4244-0150-X
DOI :
10.1109/FUSION.2005.252963
