Plasma filamentation in the Rijnhuizen tokamak RTP

N.J. Lopes Cardozo, F.C. Schüller, C.J. Barth, C.C. Chu, F.J. Pijper, J. Lok, A.A.M. Oomens

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Evidence for small scale magnetic structures in the Rijnhuizen tokamak RTP is presented. These are manifest through steps and peaks in the electron temperature and pressure, measured with multiposition Thomson scattering. During central electron cyclotron heating, several filaments of high pressure are found in the power deposition region. They live hundreds of microseconds. Near the sawtooth inversion radius a "step" in the temperature profile occurs. Further out, quasiperiodic structures are observed, in both Ohmic and heated discharges.
Original languageEnglish
Pages (from-to)256-259
JournalPhysical Review Letters
Issue number2
Publication statusPublished - 11 Jul 1994
Externally publishedYes


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