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The Australian National University

D-H experiments in H-1

Honours, Masters, PhD
D-H experiments in H-1

The difference in physical behaviour of normal and ‘heavy’ Hydrogen (Deuterium [1p,1n]) ions in a magnetised plasma is much greater than for other elemental isotopes because the mass disparity is so great. For example, H is much more strongly adsorbed into vacuum vessel metallic surfaces than D, while D typically shows a 20-40% longer ion energy confinement time than H.  Coherence interferometry is a very sensitive and efficient way to monitor the relative concentrations of H and D, which can be also be controlled by individual gas feeds, gas puff valves and supersonic injectors. The project will involve development of fast imaging spectroscopic systems based on coherence interferometry to measure and study the spatial evolution of the relative concentration of the isotopes in 0.5T radio-frequency heated H-1 plasmas.

Contacts:
Professor John Howard

Updated:  01 July 2010/Responsible Officer:  H-1 Facility Manager /Page Contact:  H-1 Website Administrator