Technological problems and salutations for the FTU LH RH system
Description
The lower hybrid, electron mode, additional heating system (LHRH) for the Frascati Tokamak Upgrade (FTU), is designed to inject 8 MW, 1 se, radiofrequency power pulses at 8 GHz into the plasma. The system is composed by eight identical modules, each one delivering 1 MW of RF power to the plasma through an antenna cosisting of two 8*8 rectangular waveguides grills. Gyrotrons have been chosen as the most suitable generators to have large unit power (500 kW) and good performances in presence of high load VSWR. Technological problems arise from the RF coupling structures because of the high frequency of operation increases the complexity of the system and requires the development of small size copper-stainless steel coextruded waveguides with single ceramic window inside
Additional details
Publishing Information
- Imprint Title
- Contributions to the 14th Symposium on fusion technology
- Imprint Pagination
- 105 p.
- Journal Page Range
- p. 59-64.
- Report number
- ENEA-RT-FUS--86-7
Conference
- Title
- 14. Symposium on fusion technology.
- Dates
- 8-12 Sep 1986.
- Place
- Avignon (France).
INIS
- Country of Publication
- Italy
- Country of Input or Organization
- Italy
- INIS RN
- 19010380
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AUXILIARY HEATING; FT TOKAMAK; LOWER HYBRID HEATING; POWER SUPPLIES
- Descriptors DEC
- CLOSED PLASMA DEVICES; ELECTRONIC EQUIPMENT; EQUIPMENT; HEATING; HIGH-FREQUENCY HEATING; PLASMA HEATING; THERMONUCLEAR DEVICES; TOKAMAK DEVICES