Metal halide discharge lamps under micro gravity conditions

W.W. Stoffels, G.M.W. Kroesen, C.H.J.M. Groothuis, A.J. Flikweert, T. Nimalasuriya, M. van Kemenade, P.C.M. Kemps, M.W.G. Bax, F.H.J. van den Hout, D. van den Akker, G.C.S. Schiffelers, J. Beckers, Erwin Dekkers, Jovita Moerel, P. Brinkgreve, M. Haverlag, R. Keijser, A. Kuipers

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Metal Halide Lamps are very efficient light sources based on a mercury plasma arc with metal halide salt additions. In spite of their high efficiency the lamps suffer from colour separation and instabilities, which currently hinders a large-scale use. These phenomena are caused by a complex interaction of convection and diffusion flows in the plasma. In order to unravel the various contributions experiments under micro gravity have been performed, where convection is absent. In this contribution the experiments as well as some first results are presented.
Original languageEnglish
Title of host publicationProceedings of the 27th International Conference on Phenomena in Ionised Gases (XXVII ICPIG 2005) 17-22 July 2005, Eindhoven, the Netherlands
EditorsE.M. Veldhuizen, van
Place of PublicationEindhoven
PublisherEindhoven University of Technology
ISBN (Print)90-386-2231-7
Publication statusPublished - 2005
Event27th International Conference on Phenomena in Ionized Gases (ICPIG 2005) - Eindhoven, Netherlands
Duration: 17 Jul 200522 Jul 2005


Conference27th International Conference on Phenomena in Ionized Gases (ICPIG 2005)
Abbreviated titleICPIG 2005


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