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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-7957
DTSTART:20221010T170000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T073948Z
LAST-MODIFIED:20221005T134007Z
LOCATION:1610 Engineering Hall
SUMMARY:The plasma density as the main lever to controlling fusion rea
 ctors\, Plasma Physics (Physics/ECE/NE 922) Seminar\, Saskia Mordic\, 
 William & Mary
DESCRIPTION:Fusion energy promises to produce clean and safe electrici
 ty on a large scale\, but it still faces some challenges.). The fusion
  gain in a tokamak is directly linked to the density of the plasma. Ho
 wever\, due to the high temperatures and densities\, it impossible to 
 fuel the plasma core in a fusion reactor\, as all neutral particles wi
 ll ionize at the edge of the device. Without any direct fueling in the
  core of a tokamak\, the plasma density is fully controlled by transpo
 rt perpendicular to the confining magnetic field surfaces. In this tal
 k I will show how cross-field transport is dominated by turbulence in 
 the plasma core by comparing experiments with existing models. These m
 odels capture how various types of turbulence influence transport and 
 thus the density profile. While the density profile in the core is ful
 ly determined by turbulent transport\, at the plasma edge\, the pictur
 e is more complicated. At the edge of the tokamak\, turbulent transpor
 t effects intermingle directly with fueling through ionization of the 
 surrounding gas. Sustaining a high-density plasma\, which is opaque to
  neutrals is not dissimilar to a minority navigating the fusion and pl
 asma community. The talk will be interwoven with personal experiences\
 , statistics and best practices to achieve a healthy fusion community 
 and reduce the opaqueness for minorities to succeed.
URL:https://www.physics.wisc.edu/events/?id=7957
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