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Coupling experiments, using a gas feed near the lower hybrid current drive (LHCD) launcher, have been carried out in JET. An improvement in coupling for a given plasma - launcher distance can be obtained when the gas flow is large enough. During these experiments, modification of the wall recycling was observed and the relation with the observed improvement in coupling is presented.

Additional information

Authors: GONICHE M, CEA, CEN Cadarache, Saint-Paul-lez-Durance (FR);DOBBING J A, JET Joint Undertaking, Abingdon, Oxon (GB);SCHILD P, JET Joint Undertaking, Abingdon, Oxon (GB);SÖLDNER F X, JET Joint Undertaking, Abingdon, Oxon (GB);EKEDAHL A, Institute for Electromagnetic Field Theory and Plasma Physics, Chalmers University of Technology, Göteborg (SE)
Bibliographic Reference: Report: JET-R(97)14 EN (1997) 13pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon, OX14 3EA (GB)
Record Number: 199810437 / Last updated on: 1998-03-31
Original language: en
Available languages: en