A frequency tunable, eight-channel correlation ECE system for electron temperature turbulence measurements on the DIII-D tokamak

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A new eight-channel correlation electron cyclotron emission diagnostic has recently been installed on the DIII-D tokamak to study both turbulent and coherent electron temperature fluctuations under various plasma conditions and locations. This unique system is designed to cover a broad range of operation space on DIII-D (1.6-2.1 T, detection frequency: 72-108 GHz) via four remotely selected local oscillators (80, 88, 96, and 104 GHz). Eight radial locations are measured simultaneously in a single discharge covering as much as half the minor radius. In this paper, we present design details of the quasi-optical system, the receiver, as well as representative data illustrating operation of the system. Published by AIP Publishing.
Publisher
AMER INST PHYSICS
Issue Date
2016-11
Language
English
Article Type
Article; Proceedings Paper
Citation

REVIEW OF SCIENTIFIC INSTRUMENTS, v.87, no.11, pp.11E123

ISSN
0034-6748
DOI
10.1063/1.4961296
URI
http://hdl.handle.net/10203/272810
Appears in Collection
NE-Journal Papers(저널논문)
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