High performance JET plasmas with pellet injectionFunded under: FP3-FUSION 11C
At the last IAEA Technical Committee Meeting at Gut Ising in October 1988, JET reported on the generation of confinement improved PEP (Pellet Enhanced Plasmas) modes by early injection of 4 mm deuterium pellets and subsequent central heating with about 8-10 MW of ion cyclotron radio frequency heating (ICRH) or combined ICRH/neutral beam injection (NBI) heating in otherwise L-mode type 3 MA discharges. Since then, JET has expanded these pulses to higher plasma currents, higher additional heating power levels, employment of larger pellet size and, particularly, has combined the PEP modes with H-mode plasmas, to obtain transient plasma performances approaching those of the best competing scenarios. This report presents recent experiments and findings with respect to the injection of both 4 mm and 6 mm pellets.
Bibliographic Reference: Report: JET-P(93)39 EN (1993) 6 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199311245 / Last updated on: 1994-11-29
Original language: en
Available languages: en