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Abstract

The main parameters of JET are summarised, showing that the most significant improvements are - the extension of 5 MA discharges to a flat top duration of 4.5 s - the obtention of stable discharges at qpsi approximately equal 2.1 with B-T=1.7T and I-p=3.5 MA in preparation of future operations at 7 MA a total input power to the plasma reaching 18 MW - a plasma energy content close to 6 MJ in both cases of limiter and separatrix limited plasmas - an increase of the temperature of the plasma: up to 12.5 keV for the peak deuterium temperature in low density rd discharges with NBI and up to 8 keV for the peak electron temperature in He discharges with ICRF. - a record value of the fusion parameter n-i(o) T-i(o)tau-E of 2.102om-3 keV/s obtained during separatrix limited plasmas with enhanced confinement (H mode). Section 1 of this summary presents the machine conditions, Section 2 addresses dedicated experiments performed on JET like pellet injection, ultra long sawteeth studies and magnetic separatrix operations. Section 3 is about global plasma behaviour such as impurities, density limit, plasma temperature, energy confinement time and thermonuclear reactivity. Section 4 describes briefly the future changes to be made to JET and the resulting prospects.

Additional information

Authors: JET TEAM, JET JOINT UNDERTAKING, ABINGDON (UK);LALLIA P P JET JOINT UNDERTAKING, ABINGDON (UK), JET JOINT UNDERTAKING, ABINGDON (UK)
Bibliographic Reference: WRITE TO THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON OX14 3EA (UK), MENTIONING REPORT JET-P(87)06, 1987
Record Number: 1989126025401 / Last updated on: 1989-01-01
Category: PUBLICATION
Available languages: en