EFFECTS OF ALFVEN WAVE HEATING ON BOTH CONFINEMENT AND IMPURITIES
Experiments on Alfven wave heating are being carried out on TCA at a power level up to the ohmic heating power, and with a pulse length of 30-60 msec. The applied frequency is 2.5 MHz. There is substantial heating of both electrons and ions, and a detailed power balance suggests that the heating rate is comparable with the rf power delivered by the antennae. There is a large increase in plasma density during the rf, which can reach more than 300 % in some conditions. This density increase is insensitive to the machine conditioning. There is an increase in the radiated power loss from the plasma centre without the lateral screens, and we show that this is independent of the number of antennae used.
Bibliographic Reference: SIXTH TOPICAL CONFERENCE ON RADIO FREQUENCY PLASMA HEATING, GALLAWAY GARDENS, PINE MOUNTAIN, GEORGIA (USA) - AUBURN UNIVERSITY, ALABAMA, MAY 13-15, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32135 ORA
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Record Number: 1989123071200 / Last updated on: 1987-01-01
Available languages: en