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Plasma Surface Interactions Research at UW-Madison
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DIONISOS
Picture of Dionysos Dynamics of IONic Implantation & Sputtering On Surfaces

Goal: Accurately measure the real-time response of the PFC material surface to plasma bombardment using in-situ high-energy ion beam analysis.

October 13, 2005: Helicon plasma column on target! read more...

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The Lab
Picture of the lab Look around our 1.7 MV tandem ion accelerator.
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Particle Transport
Transport Picture The interaction between plasmas and surfaces is complicated by the turbulent nature of plasma transport across magnetic fields in a fusion device. This picture shows filaments of dense plasma (red) extending out to surfaces far away from the confined plasma. Such interactions could greatly limit the lifetime of walls in a fusion reactor that operates 24/7.
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Disruption Mitigation
Disruption Picture The avoidance and mitigation of disruptions are critical issues for advancing the tokamak concept as a viable magnetic fusion energy source. A disruption is initiated by some global instability that causes a rapid (~10-3 s) thermal quench of the plasma kinetic energy. The resulting resistive plasma causes the confining poloidal magnetic field to decay during the current quench.
PSI group publications, presentations, and reports.
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Check out our new laboratory logbook. Read about our lab operations. Lab users can log in and post updates.
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UW Logo Prof. Dennis Whyte
University of Wisconsin - Madison
1500 Engineering Dr., Madison WI 53706 USA
Tel: (608) 262-4854
E-mail: whyte@engr.wisc.edu
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