Overview of Wisconsin Plasma Physics Laboratory Research

POSTER

Abstract

We present an overview of recent and ongoing research projects at the Wisconsin Plasma Physics Laboratory, a multi-device collaborative research facility supporting experiments in basic, astrophysical, and fusion plasma science. Recently on MST, tokamak operation has been demonstrated with toroidal field up to 0.24 T and higher temperature compared to the 0.13 T field available previously. Fluctuations and radiative collapse events are studied in non-disruptive tokamak plasmas far above the Greenwald density limit. Stochastic heating of impurity ions to several times the electron temperature is studied in ultra-low-q plasmas. High frequency magnetic fluctuations ranging up to f_ce driven by runaway electron kinetic instabilities are studied in low-density tokamak plasmas using an internal B-dot probe. Initial results of compact toroid injection into tokamak plasmas are presented, as well as oscillating-field current drive experiments in RFP plasmas using a novel programmable power supply system. On the BRB, the onset of fast reconnection is observed in a mini-magnetopause, initiated by a topological bifurcation in the separatrix surfaces. Experiments injecting collimated, magnetized jets show different propagation speeds depending on background plasma conditions. Reconnection experiments utilizing a guide field exhibit signatures of pressure anisotropy and a diamagnetic shift in the current layer position. A system to drive a rotating magnetic dipole is installed on a test chamber in preparation for future experiments to generate a plasma wind on the BRB.

Presenters

  • Joseph R Olson

    University of Wisconsin - Madison

Authors

  • Joseph R Olson

    University of Wisconsin - Madison

  • Abdulgader F Almagri

    University of Wisconsin - Madison

  • Jay K Anderson

    University of Wisconsin Madison - Realta Fusion, Realta Fusion; University of Wisconsin - Madison, University of Wisconsin - Madison

  • Oscar Anderson

    University of Wisconsin - Madison

  • Benjamin Robert Antognetti

    University of Wisconsin - Madison

  • Emi K Bell

    University of Wisconsin - Madison

  • Brett Edward Chapman

    University of Wisconsin - Madison

  • Mike Clark

    University of Wisconsin - Madison

  • Daniel J Den Hartog

    University of Wisconsin - Madison

  • Shreya Dwivedi

    University of Wisconsin - Madison

  • Jan Egedal

    University of Wisconsin - Madison

  • Samuel James Farrar

    University of Wisconsin - Madison

  • Joseph B Flahavan

    University of Wisconsin - Madison

  • Rene Flores Garcia

    University of Wisconsin-Madison

  • Cary B Forest

    University of Wisconsin - Madison, Realta Fusion; University of Wisconsin - Madison

  • Paul Gradney

    University of Wisconsin - Madison

  • Donald J Holly

    University of Wisconsin - Madison

  • Aubrey V. Houser

    University of Wisconsin - Madison

  • Noah C Hurst

    University of Wisconsin - Madison

  • Armand Keyhani

    University of Wisconsin - Madison

  • Jeremiah Kirch

    University of Wisconsin-Madison

  • Landon Thomas Leopold Kohler

    University of Wisconsin - Madison

  • Sylvia Kmiec

    University of Wisconsin - Madison

  • Cameron Kuchta

    University of Wisconsin - Madison

  • Karsten J McCollam

    University of Wisconsin - Madison

  • Steve F Oliva

    University of Wisconsin - Madison

  • Carlos Ivan Ortiz-Salguero

    University of Wisconsin - Madison

  • Mikhail Reyfman

    University of Wisconsin - Madison

  • Constance Rouda

    University of Wisconsin - Madison

  • Isaac Ruder

    University of Wisconsin - Madison

  • John S Sarff

    University of Wisconsin - Madison

  • Brandon Schmall

    University of Wisconsin - Madison

  • Aarin Sehgal

    University of Wisconsin-Madison

  • Alex A Squitieri

    University of Wisconsin - Madison

  • Mark A Thomas

    University of Wisconsin - Madison

  • Patrick Tracy

    University of Wisconsin - Madison

  • Nivedan Vishwanath

    University of Wisconsin - Madison

  • John P Wallace

    University of Wisconsin - Madison

  • Paul L Wilhite

    University of Wisconsin-Madison

  • Xinyu Yu

    University of Wisconsin - Madison