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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:3
UID:UW-Physics-Event-4995
DTSTART:20190218T180500Z
DURATION:PT1H0M0S
DTSTAMP:20260306T232938Z
LAST-MODIFIED:20190131T214719Z
LOCATION:2241 Chamberlin Hall
SUMMARY:Energetic Particle Physics in the 3D Reversed-Field Pinch\, Pl
 asma Physics (Physics/ECE/NE 922) Seminar\, Philip Bonofiglo\, UW-Madi
 son
DESCRIPTION:The examination of fast ion behavior in 3D magnetic fields
  is of growing importance in fusion scenarios. In addition to applied 
 3D perturbations in the tokamak and the inherently 3D stellarator equi
 librium\, the RFP possesses the unique ability to spontaneously change
  from a 2D-axisymmetric equilibrium to a 3D-helical equilibrium known 
 as quasi-single helicity. A helical axis forms when the innermost reso
 nant tearing mode grows to an amplitude large enough to envelop the ma
 gnetic axis while the subdominant modes decrease in amplitude. The hel
 ical core results in a local reduction of the tearing-mode induced mag
 netic stochasticity characteristic of the standard RFP. Prior studies 
 have shown that a strong thermal transport barrier develops. This work
  presents the first comprehensive study of fast ion behavior in this s
 tate. An investigation of fast ion transport due to energetic particle
 -driven Alfvénic instabilities\, tearing-mode induced stochasticity\,
  and neoclassical effects will be discussed. 
URL:https://www.physics.wisc.edu/events/?id=4995
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