Plasma and Fusion Research
Volume 14, 1201131 (2019)
Rapid Communications
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
- 1)
- Research Center for Plasma Turbulence, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
- 2)
- Research Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
Abstract
A frequency comb sweep microwave reflectometer is developed in PANTA to realize multi-point electron density measurements with high temporal resolution. A radial profile of the electron density is successfully reconstructed from simultaneous 17-point measurements with 2-μs temporal resolution. This result demonstrates the reliability and feasibility of the system for electron density profile diagnostics.
Keywords
plasma diagnosis, microwave reflectometer, electron density profile
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