ECRH System and related diagnostics in W7-X
Event details
| Date | 18.03.2015 |
| Hour | 10:30 |
| Speaker | Dr. Mélanie Preynas, CRPP-EPFL |
| Location |
PPB 019
|
| Category | Conferences - Seminars |
The Wendelstein 7-X experiment is a high performance nuclear fusion device of the stellarator type which is designed for steady state operation. The commissioning of the machine has started in May 2014 and the first operation phase is scheduled for 2015. The main plasma heating system will be ECRH with the launch of up to 10MW cw microwave power at 140GHz in 2nd harmonic X- or O-mode. The machine is composed of five sections. In each of the sections 1 and 5 are installed two ECRH equatorial launchers. Such front steering launchers can quasi-optically transmit three individual 1 MW rf beams to the plasma for up to 30 minutes
Several protective diagnostics have been designed to ensure a safe operation of the ECRH system, such as sniffer probes measuring stray radiation level, waveguides embedded in the inner wall measuring non absorbed power and a video diagnostic.
After a short introduction of W7-X, the presentation will focus on the description of the ECRH system and the video diagnostic system developed as a protective diagnostic for ECRH operation.
Several protective diagnostics have been designed to ensure a safe operation of the ECRH system, such as sniffer probes measuring stray radiation level, waveguides embedded in the inner wall measuring non absorbed power and a video diagnostic.
After a short introduction of W7-X, the presentation will focus on the description of the ECRH system and the video diagnostic system developed as a protective diagnostic for ECRH operation.
Practical information
- Informed public
- Free
Organizer
- Prof. P. Ricci
Contact
- Prof. P. Ricci