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PRODID:UW-Madison-Physics-Events
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SEQUENCE:2
UID:UW-Physics-Event-8524
DTSTART:20231206T203000Z
DTEND:20231207T000000Z
DTSTAMP:20260414T025930Z
LAST-MODIFIED:20231204T175710Z
LOCATION:B343 Sterling or https://uwmadison.zoom.us/j/97642266849?pwd=
 ajZKWmQ0bVlmWkowYUdnWjBOdTdBdz09
SUMMARY:Towards Measurement of Pressure Anisotropy during Collisionles
 s Magnetic Reconnection\, Graduate Program Event\, Cameron Kuchta\, Ph
 ysics PhD Graduate Student
DESCRIPTION:The Terrestrial Reconnection EXperiment (TREX) at the Wisc
 onsin Plasma Physics Laboratory (WiPPL) studies collisionless magnetic
  reconnection [1]. We have developed a new Pressure Anisotropy (PA) pr
 obe consisting of 24 langmuir probes\; 12 outer tips collect plasma is
 otropically while the remaining 12 inner tips are shielded and receive
  plasma directionally. This allows us to measure plasma flows and pres
 sure anisotropy during reconnection. With recent upgrades to our exper
 iment\, we are now able to enter the collisionless kinetic regime of m
 agnetic reconnection in which we expect electron anisotropy effects to
  dominate the physics in the ion diffusion region. This regime is rele
 vant to reconnection in the magnetosphere. Embedded jets\, seen in lab
 oratory data\, are driven into the outflow of reconnection as expected
  from spacecraft observation\, theory\, and simulations [2]. We have a
 lso observed signatures of pressure anisotropy with the PA probe. Curr
 ent progress on probe design and analysis will be presented.<br>
\n<br
 >
\n[1] Olson et al. PRL (2016) 116\, 255001.Experimental Demonstratio
 n of the Collisionless Plasmoid Instability below the Ion Kinetic Scal
 e during Magnetic Reconnection [2] Wetherton et al. JGR Space Physics 
 (2021) 125\, e2020JA028604. https:// doi.org/10.1029/2020JA028604<br>

 \n<br>
\nThis material is based upon work supported by the U.S. Depart
 ment of Energy\, Office of Science\, Office of Fusion Energy Sciences 
 under Award Number DE-SC0018266 and DE-SC0020989. It is also based upo
 n work supported by NASA under award No. 80NSSC22K0556.
URL:https://www.physics.wisc.edu/events/?id=8524
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