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The Australian National University
PhD, Masters, Honours, Vacation Scholar
Fast switching polarization interferometers for high resolution spectroscopic imaging

The AIIM group has pioneered a range of novel optical instruments for coherence imaging applications in both science and industry. Using spatial or temporal multiplex methods, the systems are designed to capture only the essential 2-d colour information necessary to characterise the physical properties of a given scene. This project would continue and extend this work to the development of hybrid spatio-temporal mutliplex systems for the characterisation of more complex spectral scenes. The work would involve optical design and testing, LabVIEW software development and some signal processing.

Contacts:
Professor John Howard
Masters, Honours, Vacation Scholar
Mapping of Magnetic Field Configurations in H-1

The unique heliac plasma shape is generated by a carefully designed, fully three dimensional magnetic field. The magnetic field lines can be directly mapped by launching electrons, and collecting them on a 64 wire grid array. The data is tomographically inverted by existing algorithms. This apparatus has been recently upgraded, and the project is to map the magnetic field for various configurations, looking at sensitivity to small changes in current, formation of magnetic islands, and the chaotic region at the plasma edge.

Contacts:
A/Prof Boyd Blackwell
Professor John Howard
Masters, Honours, Vacation Scholar
Effect of different discharge conditions on the quality of the H-1 vacuum system

You will use the new computer controlled residual gas analyser to compare different regimes of glow discharge conditioning, baking, and pulsed discharge cleaning in their efficiency at removing carbon and oxygen from the internal walls of the H-1 vacuum vessel. This could be extended to analysing the visible spectral lines of full scale H-1 plasma to relate the discharge conditioning to the final improvement in plasma purity.

Contacts:
A/Prof Boyd Blackwell
Mr John Wach

Updated:  30 June 2010/Responsible Officer:  H-1 Facility Manager /Page Contact:  H-1 Website Administrator