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Abstract

Low density experiments with lower hybrid (LH) waves in the Frascati Tokamak (FT) have shown the presence of relativistic runaway electrons which are detected by hard x-ray and (photo) neutron emissions. The behaviour of these signals during the RF pulse can be explained in terms of the Anomalous Doppler Resonance on the primary LH waves which is effective on electrons having energy less or about 10 MeV.This effect is present independently on the density limit which determines the efficiency of the other resonance nu = k-//EL v-//EL, the latter being responsible for electron tail enhancement (up to about 300 keV) and for wave absorption, heating and current drive effects.

Additional information

Authors: SANTINI F, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);BARBATO E, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);DE MARCO F, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);PODDA S, CENTRO RICERCHE ENERGIA FRASCATI (ITALY);TUCILLO A CENTRO RICERCHE ENERGIA FRASCATI (ITALY), CENTRO RICERCHE ENERGIA FRASCATI (ITALY)
Bibliographic Reference: WRITE TO ENEA + SERVIZIO STUDI E DOCUMENTAZIONE, CENTRO RICERCHE ENERGIA FRASCATI, C.P. 65 + 00044 FRASCATI, ROMA (ITALY), MENTIONING REPORT 83.19/P, 1983
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