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The latest results obtained in the JET experiment are summarised. Discharges with the fusion triple product n(D)(0).tau(E).T(i)(0) approx. 9.5 +/- 0.5x1.0 E20 s.keV/m3 have been achieved. In deuterium plasmas the reaction rate is R(DD) approx. 7.3 x 1.0 E16/s, corresponding to Q(DD) approx. 2.4x1.0 E-3. Simulations of the fusion yield in mixed deuterium and tritium plasmas predict Q(DT) to be between 0.85 and 0.95. This is close to the point of break-even and within a factor 6 of the value required for ignition. These results have been obtained by careful optimisation of the tokamak operating conditions and by exploiting various new machine facilities to improve plasma purity and enhance the efficiency of ion cyclotron heating. The results of detailed experiments to improve understanding of tokamak physics are also reported.

Additional information

Authors: JET TEAM, JET Joint Undertaking, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: JET-P(90)74 EN (1990) 16 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199110632 / Last updated on: 1994-12-02
Original language: en
Available languages: en