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Abstract

High power combined NB + ICRF (H)D heating experiments have been carried out in the JET MKIIa divertor configuration, both in deuterium (DD) and in deuterium-tritium (DT) plasmas. Results from a wide range of RF injected power, up to 9.5MW, NB power up to 22MW, plasma currents, up to 4.2MA, and toroidal field values, up to 3.6T, show a clear improvement in electron temperature, DD reactivity and stored energy with respect to NB only discharges. High energy Neutral Particle Analyser (NPA) data show that acceleration of the injected NB Deuterons takes place at the second harmonic resonance. This is confirmed by numerical simulations with the PION code. Experiments have also been carried out in the D heating scenario. ICRF heating has been an essential ingrediant in the DT experiments in theELM-free Hot-ion regime, contributing to the achievement of a record fusion power of 16.1 MW and a record stored energy of 17MJ

Additional information

Authors: JET JOINT UNDERTAKING, ;UKAEA FUSION, ;ABINGDON (GB), ;EURATOM LISBON (PT), ;GENERAL ATOMICS, ;SAN DIEGO (US), ;TAEGU UNIVERSITY, ;TAEGU (KO),
Bibliographic Reference: Article: JET-P(99)04 (1999) 1-18
Record Number: 199910901 / Last updated on: 1999-06-18
Category: PUBLICATION
Original language: en
Available languages: en
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