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A frequency tunable, eight-channel correlation ECE system for electron temperature turbulence measurements on the DIII-D tokamak.
- Source :
- Review of Scientific Instruments; Nov2016, Vol. 87 Issue 11, p11E123-1-11E123-3, 3p, 2 Diagrams, 2 Graphs
- Publication Year :
- 2016
-
Abstract
- 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00346748
- Volume :
- 87
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Review of Scientific Instruments
- Publication Type :
- Academic Journal
- Accession number :
- 119958934
- Full Text :
- https://doi.org/10.1063/1.4961296