Streamer structures in experiment and modeling

Takuma Yamada, Makoto Sasaki, Naohiro Kasuya, Yoshihiko Nagashima, Shigeru Inagaki, Tatsuya Kobayashi, Masatoshi Yagi, Akihide Fujisawa, Sanae I. Itoh, Kimitaka Itoh

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Validation of modeling in meso-scale structure formation is undergoing by using multi-channel probe measurements and advanced analyzing techniques such as bispectrum. Study of meso-scale structures including streamers is important for understanding anomalous transports in magnetized plasmas. A streamer structure and its mediator mode were observed in the Large Mirror Device-Upgrade linear plasma. The mediator mode nonlinearly coupled with many other drift wave modes and generated a streamer structure by phase locking. The radial biphase profiles indicating the phase locking showed the radial elongation of the streamer structure. Modes having similar characteristics to the mediator were also found in a theoretical work based on the Hasegawa-Mima model and a numerical simulation code.

Original languageEnglish
Article number2401022
JournalPlasma and Fusion Research
Issue numberSPL.ISS.1
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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