Effects of 2D and Finite Density Fluctuations on O-X Correlation Reflectometry

Kramer, G.J. ; Nazikian, R. ; Valeo, E.

Princeton University. Plasma Physics Laboratory.

关键词: Reflection;    70 Plasma Physics And Fusion Technology;    Two-Dimensional Calculations;    Correlations;    Diagnostic Techniques;   

DOI  :  10.2172/787719
RP-ID  :  PPPL-3589
RP-ID  :  AC02-76CH03073
RP-ID  :  787719

美国|英语

来源: UNT Digital Library

【 摘 要 】

The correlation between O-mode and X-mode reflectometer signals is studied with a 1D and 2D reflectometer model in order to explore its feasibilities as a q-profile diagnostic. It was found that 2D effects and finite fluctuation levels both decrease the O-X correlation. At very low fluctuation levels, which are usually present in the plasma core, there is good possibility to determine the local magnetic field strength and use that as a constraint for the equilibrium reconstruction.