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Toroidal geometry affects the evolution of the component of the wave vector parallel to the magnetic field along the lower hybrid wave trajectories. In this paper such variations are investigated both analytically and numerically. The main parameters governing this phenomenon are found and the occurrence of upshift is elucidated. As a figure of merit an upshift factor is defined and discussed in a dimensionless parameters space in which all the LH experiments can be represented. As a final point it is discussed whether toroidal effects can fill the gap between the high phase velocity of the injected LH waves and the electron thermal velocity, by analysis of different experimental situations.

Additional information

Authors: BARBATO E, ENEA, Centro Ricerche Energia Frascati, Roma (IT);ROMANELLI F, ENEA, Centro Ricerche Energia Frascati, Roma (IT)
Bibliographic Reference: Report: RT/FUS/89/3 EN (1989) 20 pp.
Availability: Available from Servizio Studi e Documentazione, ENEA, Centro Ricerche Energia Frascati, C.P.65-00044 Frascati, Roma (IT)
Record Number: 199010348 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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