Measurement of radial correlation lengths of electron density fluctuations in heliotron J using O-mode reflectometry
| Autor: | J. H. E. Proll, Shin Ichiro Kado, Tsuyoshi Tomita, Hiroyuki Okada, Yasuto Kondo, Shinji Kobayashi, Tohru Mizuuchi, T. Fukuda, Yuji Nakamura, Shigeru Konoshima, Shinsuke Ohshima, Akihiro Ishizawa, Kazunobu Nagasaki, Takashi Minami, Niels Smith |
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| Přispěvatelé: | Applied Physics and Science Education, Science and Technology of Nuclear Fusion, Turbulence in Fusion Plasmas |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Electron density
Materials science Turbulent transport Cyclotron Fusion plasma Mode (statistics) Electron Condensed Matter Physics Neutral beam injection Electron density fluctuation Magnetic field law.invention Heliotron J O-mode reflectometry law Radial correlation length Atomic physics Reflectometry |
| Zdroj: | Plasma and Fusion Research, 15:2054. Japan Society of Plasma Science and Nuclear Fusion Research (JSPF) |
| ISSN: | 1880-6821 |
| Popis: | The radial correlation length Lr of electron density fluctuations has been measured using a two-channel Omode reflectometer system in the helical-axis fusion plasma experimental device Heliotron J. The experimental results show that Lr is around 1.4 n 0.7mm in three different magnetic field bumpiness configurations (i.e. low, medium and high) for the low-density electron cyclotron heating (ECH) discharges. In high-density neutral beam injection (NBI) discharges with HIGP and pellet injection, Lr is found to be around 1 n 0.2 mm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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