DEVELOPMENT AND TESTING OF COMPONENTS FOR THE ASDEX AND W VII AS ICRF LONG PULSE HEATING
The ASDEX ICRF system has been in operation since November 1984 with pulses of 2xl.5 MW (6 MVA/17 kVp) and pulse lengths of up to 1.5 s. In the new operation phase of ASDEX pulses of 25 MVA/35 kVp with lenths of up to 10 s are envisaged. Powers of 50 MVA/50 kVp with a density of 280 kVA/cm2 were achieved in tests with a pulse length of 10 s. From operation to date and special investigations on the RF test bed we know that long pulses create major problems at various locations in the non-matched power line system between the antenna and stub tuners both in the 9" - 50 OMEGA pressurized and 6 1/8" - 25 OMEGA vacuum lines. The ICRH test bed was completed at the beginning of 1985 and affords the following testing facilities: For investigating ICRF vacuum components there is a vacuum vessel 1 m in diameter with magnetic fields of up to 1.2 T and a double-stub tuner system. The 1.5 MW/10 s generator, tunable between 30 and 115 MHz, and a 100 kW/100 ms generator with a fixed frequency of 50 MHz can be hooked up to this test bed. For investigating pressurized ICRF components there is a lambda/4 pressurized resonator which is operated with the 100 kW/100 ms generator.
Bibliographic Reference: 14TH SOFT CONFERENCE, AVIGNON (FRANCE), SEPT. 8-12, 1986 VOL. 1, PP. 715-722 1895 P., 1986, VOL. 1 AND VOL. 2, ISBN 0 08 034935 8 WRITE TO PERGAMON PRESS, HEADINGTON HILL HALL, OXFORD, OX3 0BW (UK), PRICE: UKL 220 (FOR BOTH VOLS.)
Record Number: 1989126046301 / Last updated on: 1989-01-01
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