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The recent advances in techniques for diagnosing the internal structure of tokamak plasmas, particularly soft X-ray imaging, electron cyclotron emission and transmission interferometry, are reviewed. These advances have had a major impact on our understanding of tokamak relaxation phenomena, in particular sawtooth oscillations, which is described. Further improvement in diagnostics are in progress and those which are likely to be of benefit in this area of tokamak research are identified.

Additional information

Authors: COSTLEY A E, JET Joint Undertaking, Abingdon, Oxon (GB)
Bibliographic Reference: Report: JET-P(88)30 EN (1988)
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 198910478 / Last updated on: 1994-12-01
Original language: en
Available languages: en