Initial result of successive SXR imaging measurement in low-A RFP

Akio Sanpei, Kensuke Oki, Mitsuru Nakamura, Akio Higashi, Hidehiko Motoi, Daisuke Fukahori, Haruhiko Himura, Sadao Masamune, Satoshi Ohdachi, Nobuhiro Nishino, Takumi Onchi, Ryuya Ikezoe

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A fast successive soft-X ray (SXR) imaging system where SXR camera and high-speed camera for the study of time evolution of magnetic islands has been constructed. A preliminary experimental result in which we observed tangential SXR images from quasi-periodic quasi-single helicity (QSH) state in low-aspect-ratio (low-A) reversed field pinch (RFP) is presented. We successfully obtained time evolution of SXR images from tangential port. By comparison obtained images with simulated images, we may conclude that the evolution of experimental SXR image suggests the rotating QSH RFP configuration. The filamentous configuration tends to be observed in QSH state rather than in multi-helicity (MH) state.

Original languageEnglish
Article number2406096
JournalPlasma and Fusion Research
Issue number1 SPECIAL ISSUE
Publication statusPublished - 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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