Investigation of post-discharge processes in nitrogen at low pressure
- University of Nis, Faculty of Electronic Engineering, Aleksandra Medvedeva 14, 18000 Nis (Serbia)
- University of Belgrade, School of Electrical Engineering, Bulevar Kralja Aleksandra 73, 11000 Belgrade (Serbia)
The processes which are a consequence of neutral active particles presence in post-discharge nitrogen-filled tube at 13.3 mbar pressure have been analyzed. The analysis has been performed based on the experimental data of electrical breakdown time delay as a function of afterglow period {tau}. The most significant parameters such as applied voltage, discharge current, time, and exposure to radiation have been varied. It has been shown that the increase in applied voltage and discharge time, as well as exposure to UV radiation, leads to the decrease of the mean value of electrical breakdown time delay t{sub d}. This decrease occurs for {tau}>70 ms, when N({sup 4}S) atoms play a dominant role in breakdown initiation. The increase in discharge current leads to the decrease of t{sub d} values for {tau}{<=}70 ms, when positive ions dominantly induce breakdown. The most important reactions which lead to formation of positive ions and neutral active particles are also presented in the paper.
- OSTI ID:
- 22075535
- Journal Information:
- Physics of Plasmas, Vol. 19, Issue 12; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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