Ion heating experiment by a helical antenna in a fast-flowing plasma

Akira Ando, Yohei Hosokawa, Motoi Hatanaka, Hiroyuki Tobari, Kunihiko Hattori, Masaaki Inutake

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Ion cyclotron resonance heating by radio-frequency (RF) waves, which are excited by a helically wound antenna, is observed for the first time in a fast-flowing plasma in the HITOP device. Dispersion relations of propagating waves are obtained experimentally and compared with theoretical ones. Stored energy W and ion temperature clearly increase during the RF pulse. Heating efficiency is compared for various magnetic field configurations and strengths without any clear indication of the cyclotron resonance. This suggests that ion-ion collisional effect is dominant in the high-density plasma. When a ratio of ion cyclotron frequency to ion-ion collision one becomes high, features of ion cyclotron resonance are clearly observed.

Original languageEnglish
Pages (from-to)601-604
Number of pages4
JournalThin Solid Films
Publication statusPublished - 2006 May 26


  • Electric propulsion
  • Helical antenna
  • Ion heating
  • MPD plasma


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