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Abstract

Lower hybrid electron heating and current drive has been successfully investigated in many experiments working at relatively low density. At higher densities ion heating has been observed less clearly and only in some devices. In view of these various experimental results, the physical implications coming from theory are reviewed in this paper. In particular, the main features of coupling, propagation and absorption of lower hybrid waves, as well as the related problems raised by the observations, are described in the various plasma density conditions. Main emphasis is given to the electron absorption regime far away from the lower hybrid resonance (or linear turning points), since this regime appears now very promising for plasma heating and current drive.

Additional information

Authors: SANTINI F ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY), ENEA, CENTRO RICERCHE ENERGIA FRASCATI (ITALY)
Bibliographic Reference: WRITE TO SERVIZIO STUDI E DOCUMENTAZIONE - ENEA, CENTRO RICERCHE ENERGIA FRASCATI, C.P. 65 - 00044 FRASCATI, ROMA (ITALY), MENTIONING REPORT RT/FUS/85/6, 1985
Record Number: 1989125010200 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en