Observation and Measurement of MHD Activity Using Motional Stark Effect (MSE) Diagnostic.

Jayakumar, R. J. ; Makowski, M. A. ; Allen, S. ; Moller, J. ; Rhodes, T.

Technical Information Center Oak Ridge Tennessee

关键词: Measurement;    Oscillations;    Amplitude;    Instability;    Motional Stark Effect diagnostic;   

RP-ID  :  DE200515014358

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

In a new mode of measurement, the amplitude of a tearing mode rotating at frequencies of up to tens of KHz has been obtained using the spectral features of high frequency MSE data. A formulation has been developed to calculate the pitch angle oscillations associated with these instabilities, from the MSE spectrum. Density fluctuations can be simultaneously obtained from MSE measurements if the intensity response to density variation can be calibrated. Examples of observations are given and detection limits are explored.