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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:1
UID:UW-Physics-Event-8273
DTSTART:20230517T160000Z
DTEND:20230517T180000Z
DTSTAMP:20260414T033132Z
LAST-MODIFIED:20230424T184808Z
LOCATION:B343 Sterling
SUMMARY:Investigating the Collisionless Kinetic Regime with the New TR
 EX Drive Cylinder\, Preliminary Exam\, Paul Gradney
DESCRIPTION:The Terrestrial Reconnection EXperiment (TREX) at the Wisc
 onsin Plasma Physics Laboratory (WiPPL) can reliably reach the collisi
 onless kinetic regime by driving an induced magnetic field through a c
 ylindrical coil geometry. The enhanced drive reduces the effects of co
 llisionality in the experiment\, such that electron pressure anisotrop
 y is expected to develop unimpeded by Coulomb collisions. Comparing th
 e upgraded Drive Cylinder to the previous 4-coil TREX configuration\, 
 the reconnection current layer is a factor of two longer\, with an abs
 olute system size of L/di = 15\, and increases the reconnection rate f
 rom Erec ~ 100V/m to 900V/m. These improved parameters allow the Drive
  Cylinder to reach a Lundquist number of S = 10^5\, the highest value 
 achieved by a dedicated reconnection experiment. In this parameter spa
 ce\, the Drive Cylinder can explore plasma physics dynamics that are m
 ore applicable to the collisionless settings in many space physics phe
 nomenon\, such as planetary magnetospheres.
URL:https://www.physics.wisc.edu/events/?id=8273
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