Absorption spectroscopy with an UHP-backlight system – an innovative and simple concept for particle density diagnostics in HID-lamps

Michael Westermeier, J. Reinelt, Cornelia Ruhrmann, Jürgen Mentel, Peter Awakowicz

Frontiers in Low Temperature Plasma Diagnostics 8


Aim of the presented work is the optimization of electrodes in high intensity discharge (HID) lamps by investigating the gas-phase emitter-effect. An innovative, simple and cheap absorption diagnostic setup will be presented consisting mainly of a strong UHP-backlight source. The new concept can replace the complex conventional laser absorption systems in special applications like HID diagnostic. Results are given exemplarily for particle density measurements in HID lamps.

tags: hidl