Systematic Observations of 150 W Metal-Halide Arc Lamps Containing a Progression of Additive Chemistries
John J. Curry, Craig J. Sansonetti
With three complimentary diagnostic methods, we examined a series of 150 W metal-halide arc lamps containing a progression of additive chemistries: 1) pure Hg, 2) Hg + HgI2, 3) Hg + NaI, and 4) Hg + NaI + DyI3. We obtained spatial distributions of Hg using x-ray absorption imaging, spatial distributions of Dy and I using x-ray induced fluorescence, and core temperatures using optical emission spectroscopy. An identical series of lamps was examined by researchers at the University of Wisconsin using optical absorption and infrared emission spectroscopy. This work is part of the ALITE-II project, sponsored by the Electric Power Research Institute, whose goal is to identify and reduce infrared losses in metal-halide arc lamps.
Light Sources 2004
July 18-22, 2004
International Symposium on the Science and Technology of Light Sources
and Sansonetti, C.
Systematic Observations of 150 W Metal-Halide Arc Lamps Containing a Progression of Additive Chemistries, Light Sources 2004, Toulouse, FR
(Accessed December 10, 2023)