The first experiment of MPD Jet injection into GAMMA 10 plasma

Kazuya Ichimura, Yousuke Nakashima, Hisato Takeda, Katsuhiro Hosoi, Satoru Kigure, Shigehito Takahashi, Miki Iwamoto, Yasunari Hosoda, Mafumi Hirata, Ryuya Ikezoe, Kensuke Oki, Masayuki Yoshikawa, Mizuki Sakamoto, Tsuyoshi Imai, Makoto Ichimura

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Results of the first experiment of short pulse plasma injection by MPD (magneto plasma dynamic) Jet into GAMMA 10/PDX's longer pulse plasma are reported. In the experiment, a new method for plasma start-up without using plasma guns was applied. In this method, the main plasma of GAMMA 10/PDX was produced by ECRH (electron cyclotron resonance heating) and ICRF (ion cyclotron range of frequency). Then, MPD Jet plasma was injected into the main plasma along magnetic field line. As a result, density of the main plasma was increased and the end-loss flux was doubled. Flow velocity of the plasmoid injected by the MPD Jet was evaluated from the change of plasma density in each cell of the tandem mirror. The result indicated that the flow speed is several km/s. It is found that the plasmoid worked as strong fueling device which dramatically raises the density of plasma. Therefore injection of MPD Jet plasma into tandem mirror can be a useful tool to study physical phenomena of divertor and PWI.

Original languageEnglish
Article number3406098
JournalPlasma and Fusion Research
Issue numberSpecialIssue2
Publication statusPublished - 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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