Denis completed a Bachelor of Science in 1994 with honours in Physics at UTAS.
His Honours thesis looked at computer modelling of compacity of random packings and investigation of scaling behaviour of random packings under percolation theory. From 1995 - 2003 Denis was Associate Lecturer in Applied Physics/Electronics, and 2002 - current is Associate Lecturer for Australain Maritime College in Engineering. From 2004 - current Denis became an Associate Lecturer in Human Life Sciences teaching Kinesiology, Physics and Radiation Science units.
Research Interests
Denis' current research is in numerical modelling in plasma physics for controlled fusion.
D. Visentin (PhD) - Rotating Magnetic Field Drive in Confined Plasmas (Doctorate)
Current drive schemes for controlled fusion use a rotating magnetic field (RMF) to drive current in a plasma column. The PhD project investigates the possibility of using two counter-RMFs to drive current for longer timescales, by allowing the electrons to be driven by one RMF, and the ions by a second RMF. The problem of RMF penetration and entrainment of the plasma is highly non-linear. This steady state has been shown to be accessible by a numerical simulation on a stationary plasma for a certain class of initial conditions, where these initial conditions can be made broader by allowing the RMFs to be frequency-modulated. Current progress is applying the RMFs to a preformed field-reversed configuration (FRC), where the plasma is allowed to move. The FRC can be maintained for time scales very much longer than the ion relaxation time. The outcome of this research, which determines the feasibility of this scheme, will effect reactor design and operation.
Teaching
Denis is unit coordinator for the Radiography units: Radiographic Fundamentals, Radiographic Instrumentation, units dealing with physics of Human Movement:Kinesiology, Biomechanics, and the applied Physics unit:Physics for Health Sciences
UnitsSelected Publications:- Visentin, D.C. and Hugrass, W.N, 2007, 'A Field Reversed Configuration Maintained by Two Counter-RMFs', submitted for publication to Plasma Phys. Control. Fusion
- Visentin, D.C. and Hugrass, W.N, 2005, 'Maintaining an FRC by two Counter-Rotating Magnetic Fields', Australian Institute of Physics 16th National Congress
- Visentin, D.C, 2003, 'Ion Motion Control in RMF Current Drive by Means of a Frequency Modulated Counter-RMF', Plasma Phys. Control. Fusion, 45, pgs. 1027
- Visentin, D.C. and Hugrass, W.N, 2003, 'Control of the Motion of the Ions in Rotating Magnetic Field Current Drive: 2. Transient Analysis', Plasma Phys. Control. Fusion, 45, pgs. 209
Full Publication List
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