BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-4972
DTSTART:20190315T203000Z
DURATION:PT1H0M0S
DTSTAMP:20260416T125654Z
LAST-MODIFIED:20190312T140327Z
LOCATION:2241 Chamberlin Hall
SUMMARY:The long way to steady state fusion plasmas - the superconduct
 ing stellarator device Wendelstein 7-X\, Physics Department Colloquium
 \, Thomas Klinger\, Max-Planck-Institut für Plasmaphysik and Greifswa
 ld University
DESCRIPTION:Stellarators are disruption-free and inherently capable to
  operate in steady-state. The optimized superconducting stellarator de
 vice Wendelstein 7-X (major radius 5.5 m\, minor radius 0.5 m\, 30m3 p
 lasma volume) restarted operation after the assembly of a graphite hea
 t shield and 10 inertially cooled island divertor modules. With 2.5 T 
 magnetic field on axis and 8 MW micro wave heating power\, high perfor
 mance divertor plasmas are generated that allow one to establish the s
 cientific basis for the extrapolation to a next step device. Wendelste
 in 7-X was designed for steady-state high-power operation\, more speci
 fically for 1800 s at 10 MW input power. This talk summarizes the phys
 ics results obtained during the recent first operation phases\, notabl
 y high density and performance discharges\, stellarator physics optimi
 zation\, and island divertor operation. We also discuss the key physic
 s subjects for optimized stellarators and briefly review the construct
 ion of such a first-of-a-kind device.
URL:https://www.physics.wisc.edu/events/?id=4972
END:VEVENT
END:VCALENDAR