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PRODID:-//Memento EPFL//
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SUMMARY:ECRH System and related diagnostics  in W7-X
DTSTART:20150318T103000
DTSTAMP:20260610T154918Z
UID:80b8435b55fac0b8c0fec2618ce684ac7072f58bbe51d569663de8f0
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Mélanie Preynas\, CRPP-EPFL\nThe Wendelstein 7-X experime
 nt is a high performance nuclear fusion device of the stellarator type whi
 ch is designed for steady state operation. The commissioning of the machin
 e has started in May 2014 and the first operation phase is scheduled for 2
 015. 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 machin
 e is composed of five sections. In each of the sections 1 and 5 are instal
 led 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\nSeveral protective diagnostics have been designed to ensure a
  safe operation of the ECRH system\, such as sniffer probes measuring stra
 y radiation level\, waveguides embedded in the inner wall measuring non ab
 sorbed power and a video diagnostic.\nAfter 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 ope
 ration.
LOCATION:PPB 019
STATUS:CONFIRMED
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