Two-dimensional Simulations of Correlation Reflectometry in Fusion Plasmas

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

Princeton University. Plasma Physics Laboratory.

关键词: Reflection;    70 Plasma Physics And Fusion Technology;    Tftr Tokamak;    Computerized Simulation;    Wave Propagation;   

DOI  :  10.2172/787718
RP-ID  :  PPPL-3588
RP-ID  :  AC02-76CH03073
RP-ID  :  787718

美国|英语

来源: UNT Digital Library

【 摘 要 】

A two-dimensional wave propagation code, developed specifically to simulate correlation reflectometry in large-scale fusion plasmas is described. The code makes use of separate computational methods in the vacuum, underdense and reflection regions of the plasma in order to obtain the high computational efficiency necessary for correlation analysis. Simulations of Tokamak Fusion Test Reactor (TFTR) plasma with internal transport barriers are presented and compared with one-dimensional full-wave simulations. It is shown that the two-dimensional simulations are remarkably similar to the results of the one-dimensional full-wave analysis for a wide range of turbulent correlation lengths. Implications for the interpretation of correlation reflectometer measurements in fusion plasma are discussed.