Life Time of Plasma States near Transition Boundary

• Itoh Sanae-I.

  Research Institute for Applied Mechanics, Kyushu University

• Itoh Kimitaka

  National Institute for Fusion Science

• Yagi Masatoshi

  Research Institute for Applied Mechanics, Kyushu University

Abstract

The stochastic trigger of the neoclassical tearing mode (NTM) in toroidal confinement plasmas by the background turbulence is studied. The life time is given by the inverse of the statistical average of transition rate. On the basis of the statistical theory of a plasma turbulence, the life time of the state free from the NTM is obtained. The dependence on the plasma parameters is explicitly shown. The beta limit by the NTM is found to be diffused. This gives a new insight for the database of operational boundary of toroidal plasmas.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 74 (3), 947-950, 2005

  THE PHYSICAL SOCIETY OF JAPAN

Keywords

• plasma turbulence
• transition
• life time
• toroidal plasma
• neoclassical tearing mode
• magnetic reconnection
• turbulence trigger
• probabilistic onset
• steady state operation

Details

• CRID: 1390001204185957888
• NII Article ID: 210000105916
• NII Article ID: 110001979472
• NII Book ID: AA00704814
• DOI: 10.1143/jpsj.74.947
• BIBCODE: 2005JPSJ...74..947I
• ISSN: 13474073
• ISSN: 00319015
• NDL BIB ID: 7282683
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7282683
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.74.947
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed