Ion cyclotron resonance heating (ICRH) start-up antenna for the mirror fusion test facility (MFTF-B)

Conference · Wed Oct 02 00:00:00 EDT 1985

OSTI ID:6485149

McCarville, T M; Romesser, T E

The purpose of the ICRH start-up antenna on MFTF-B is to heat the plasma and control the ion distribution as the density increases during start-up. The antenna, consisting of two center fed half turn loops phased 180/sup 0/ apart, has been designed for 1 MW of input power, with a goal of coupling 400 kW into the ions. To vary the heating frequency relative to the local ion cyclotron frequency, the antenna is tunable over a range from 7.5 to 12.5 MHz. The thermal requirements common to low duty cycle ICRH antennas are especially severe for the MFTF-B antenna. The stress requirements are also unique, deriving from the possibility of seismic activity or JxB forces if the magnets unexpectedly quench. Considerable attention has been paid to contact control at high current bolt-up joints, and arranging geometries so as to minimize the possibility of voltage breakdown.

• Research Organization: TRW, Inc., Redondo Beach, CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6485149
• Report Number(s): UCRL-92623; CONF-851102-2; ON: DE86002376
• Resource Relation: Conference: 11. symposium on engineering problems in fusion research, Austin, TX, USA, 18 Nov 1985
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTENNAS
ICR HEATING
MFTF DEVICES
BREAKDOWN
COUPLING
ELECTRIC POTENTIAL
ION DENSITY
START-UP
STRESSES
ELECTRICAL EQUIPMENT
EQUIPMENT
HEATING
HIGH-FREQUENCY HEATING
MAGNETIC MIRRORS
OPEN PLASMA DEVICES
PLASMA HEATING
THERMONUCLEAR DEVICES
700205* - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems