The experimental study of the current pulse duration on the HID lamps luminance

Molecular Photochemistry

“…However, by using short pulses of current one can hope to obtain such a result and to modify of this fact the distribution of the atomic excitation and the spectral distribution of the radiation (mainly visible and ultraviolet). Former works showed that the form of the current wave imposed on the lamp could be selected so as to improve the production of the radiation (Chalek, 1981;Brates, 1987;Chammam et al, 2005;Mrabet et al, 2006;Bouslimi et al, 2009aBouslimi et al, , 2009c. It remains, for these sources, to optimize the parameters of excitation (form, amplitude, frequency, duration of pulses) according to those of the discharge (natural of the mixture gas, energy spectral distribution).…”