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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-8275
DTSTART:20230501T170000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T033314Z
LAST-MODIFIED:20230425T165348Z
LOCATION:2241 Chamberlin Hall
SUMMARY:Initial Results from the DIII-D Negative Triangularity Campaig
 n\, Plasma Physics (Physics/ECE/NE 922) Seminar\, Kathreen Thome\, Gen
 eral Atomics
DESCRIPTION:Negative Triangularity (NT) is a potentially transformativ
 e scenario for fusion energy with its high-performance core\, L-mode-l
 ike edge\, and low-field-side divertors that could readily scale to an
  integrated reactor solution free of ELMs. Benefits of the NT shape we
 re originally demonstrated on the TCV tokamak and high-performance has
  been previously achieved on DIII-D\, which motivated the installation
  of graphite-tile armor on the low-field-side lower outer wall to atta
 in high-power diverted plasmas with strong negative triangularity. In 
 early 2023\, a dedicated multiple-week experimental campaign was condu
 cted to qualify the NT scenario for future reactors. During this campa
 ign\, high confinement (H98y\,2≥1)\, high current (q95<3)\, and high
  normalized pressure plasmas (βN~3) were achieved at high-injected-po
 wer in strongly NT-shaped plasmas with δavg= - 0.5 and a lower outer 
 divertor X-point during a dedicated experimental campaign on DIII-D th
 at also demonstrated high normalized density (ne/nGW≤2) and a detach
 ed divertor\, all while maintaining a non-ELMing NT-edge. Further resu
 lts on performance\, stability\, transport\, and core-edge integration
  will be presented. 
URL:https://www.physics.wisc.edu/events/?id=8275
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