Design of a correlation electron cyclotron emission diagnostic for Alcator C-Mod

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A correlation electron cyclotron emission (CECE) diagnostic has been installed in Alcator C-Mod. In order to measure electron temperature fluctuations, this diagnostic uses a spectral decorrelation technique. Constraints obtained with nonlinear gyrokinetic simulations guided the design of the optical system and receiver. The CECE diagnostic is designed to measure temperature fluctuations which have k(theta) <= 4.8 cm(-1) (k(theta) rho(s) < 0.5) using a well-focused beam pattern. Because the CECE diagnostic is a dedicated turbulence diagnostic, the optical system is also flexible, which allows for various collimating lenses and antenna to be used. The system overview and the demonstration of its operability as designed are presented in this paper.
Publisher
AMER INST PHYSICS
Issue Date
2012-10
Language
English
Article Type
Article; Proceedings Paper
Citation

REVIEW OF SCIENTIFIC INSTRUMENTS, v.83, no.10

ISSN
0034-6748
DOI
10.1063/1.4731750
URI
http://hdl.handle.net/10203/272869
Appears in Collection
NE-Journal Papers(저널논문)
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