3D dysprosium density in the metal-halide lamp measured by emission and laser absorption spectroscopy in a centrifuge at 1-10g

A.J. Flikweert, T. Nimalasuriya, G.M. Thubé, G.M.W. Kroesen, W.W. Stoffels

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

The metal-halide lamp is a High Intensity Discharge (HID) lamp with a high efficiency. The salt additive (DyI3) acts as prime radiator. The present lamp suffers from non-uniform light output, caused by diffusion and convection processes. To gain a better understanding of the lamp, the convection is varied by vaying the gravity. The latest addition is a centrifuge (diameter 3 metres), whisch can go up to 10g. Lateral Dy profiles and radial temperature profiles are obtained by means of emission spectoscopy. In addition, laser absorption spectroscopy is used to obtain a 2D Dy density image. The first results will be presented.
Originele taal-2Engels
TitelLight Sources 2007: Proceedings of the 11th International Symposium on the Science and Technology of Light Sources, 20-24 May, 2007, Shanghai, China
Plaats van productieShanghai, China
UitgeverijIntitute of Physics Publishers
Pagina'sCP121-391/392
StatusGepubliceerd - 2007
Evenement11th International Symposium on the Science and Technology of Light Sources - Shanghai, China
Duur: 20 mei 200724 mei 2007

Congres

Congres11th International Symposium on the Science and Technology of Light Sources
Land/RegioChina
StadShanghai
Periode20/05/0724/05/07

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