Predictive Modelling of Optimized Shear Scenarios for High Performance Experiments on JET
Modelling of lower hybrid current drive with transport calculations is performed with the JETTO transport code which has been upgraded by implementing the Fast Ray-Tracing Code to calculate self-consistent lower hybrid power deposition profiles. Heat and particle transport models that are able to reproduce the experimental JET temperature and density profiles are used in JETTO for predictive high performance modelling. Application of 3.5 MW LHCD power provides an inverted q-profile is monotonic during the flat-top phase. The results predict that the fusion power is about 60% higher for the high performance D-T plasmas in the optimized shear scenario with 3.5MW LHCD applied during the high performance phase than without LHCD at Bt=3.4T and Ip = 3.9 MA on JET. Also, width of the ITB is 0.25 -0.30 m larger and the ITB can be sustained for longer time with LHCD.
Bibliographic Reference: Report: JET-P(99)65, 23pp.
Availability: Available from the Librarian, JET Joint Undertaking, Abingdon (GB)
Record Number: 200011869 / Last updated on: 2000-03-21
Original language: en
Available languages: en