Pulse, dc and ac breakdown in high pressure gas discharge lamps

被引：16
|
作者：
Beckers, J. [1 ]
Manders, F. [2 ]
Aben, P. C. H. [1 ]
Stoffels, W. W. [1 ]
Haverlag, M. [1 ,2 ]
机构：
[1] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands
[2] Philips Lighting, Adv Dev Lighting, NL-5611 BD Eindhoven, Netherlands
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2008年 / 41卷 / 14期
关键词：
D O I：
10.1088/0022-3727/41/14/144028
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An optical study of pulse, dc, and ac (50-400 kHz) ignition of metal halide lamps has been performed by investigating intensified CCD camera images of the discharges. The ceramic lamp burners were filled with xenon gas at pressures of 300 and 700 mbar. In comparison with dc and pulse ignition, igniting with an ac voltage decreases the ignition voltage by up to 56% and the breakdown time scales get much longer (similar to 10(-3) s compared with similar to 10(-7) s for pulse ignition). Increasing the ac frequency decreases the ignition voltages and changes the ionization channel shapes. External irradiation of UV light can have either an increasing or a decreasing effect on ignition voltages.
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页数：6
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