BROADENING OF THE LOWER HYBRID K(PARALLEL) SPECTRUM BY TOROIDAL EFFECTS
Toroidal geometry affects the evolution of k(parallel), 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 the phenomenon are found and the occurrence of k(parallel) - upshift within this scheme is explained. As a figure of merit a k(parallel)-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 and when toroidal effects can fill the gap between the high phase velocity of the injected LH waves and the electron thermal velocity, by analysing different experimental situations.
Bibliographic Reference: REPORT: RT/FUS/89/3 EN (1989) AVAILABLE FROM ENEA, CENTRO RICERCHE ENERGIA FRASCATI, C.P. 65 - 00044 FRASCATI, ROMA (IT)
Record Number: 1989128048900 / Last updated on: 1990-11-09
Available languages: en