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The problem of electron mode structure and location in toroidal plasmas is examined. It is shown that only two basic forms exist: isolated modes that occur only at a particular radius, and general modes that occur at all radii. Isolated modes are always localised; typically general modes are also localised, though in special circumstances they may be extended. All modes have a discrete spectrum. These results are consistent with a diffusion coefficient having the Bohm scaling and decreasing with plasma rotational velocity shear.

Additional information

Authors: TAYLOR J B, AEA Fusion, Government Division, Culham, Abingdon, Oxon. (GB);WILSON H R, AEA Fusion, Government Division, Culham, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: UKAEA FUS 279 EN (1995) 8 pp.
Availability: Available from the Librarian, UKAEA, Culham Laboratory, Abingdon, Oxon. OX14 3DB (GB)
Record Number: 199510236 / Last updated on: 1995-02-21
Original language: en
Available languages: en