Pulse, dc and ac breakdown in high pressure gas discharge lamps
| Autor: | J Job Beckers, WW Winfred Stoffels, Pch Paul Aben, M Marco Haverlag, F Freddy Manders |
|---|---|
| Přispěvatelé: | Elementary Processes in Gas Discharges |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Gas-discharge lamp
Acoustics and Ultrasonics business.industry chemistry.chemical_element Halide Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Pulse (physics) Electric discharge in gases Ignition system Optics Xenon chemistry law Ionization business Voltage |
| Zdroj: | Journal of Physics D: Applied Physics, 41(14), 144028-1/6. Institute of Physics |
| ISSN: | 0022-3727 |
| Popis: | 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 (~10-3 s compared with ~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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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