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Plasma and Fusion Research
Volume 9, 3402021 (2014)
Regular Articles
Digital Correlation ECE Measurement Technique with a Gigahertz Sampling Digitizer
- National Institute for Fusion Science, Toki 509-5292, Japan
- 1)
- Research Institute for Applied Mechanics, Kyushu University, Fukuoka 816-8580, Japan
- 2)
- Itoh Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
(Received 10 December 2013 / Accepted 22 January 2014 / Published 7 April 2014)
Abstract
The concept of digital correlation electron cyclotron emission (ECE) measurement is proposed for studying of the mesoscale phenomena. The recent progress in fast sampling and computing enables the acquisition of waveforms of intermediate frequency (IF) in the range of several gigahertz. Correlation analysis using an IF digitizing technique can be helpful for analyzing mesoscale phenomena. This paper discusses the concept and characteristics of the IF digitizing technique for correlation analysis, and presents an example of IF waveform acquisition of ECE.
Copyright (c) 2014 The Japan Society of Plasma Science and Nuclear Fusion Research
Keywords
ECE, correlation, gigahertz sampling, intermediate frequency, mesoscale turbulence, LHD
DOI: 10.1585/pfr.9.3402021
Full Text
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This paper may be cited as follows:
Hayato TSUCHIYA, Sigeru INAGAKI, Tokihiko TOKUZAWA, Naoki TAMURA and Yoshio NAGAYAMA, Plasma Fusion Res. 9, 3402021 (2014).