Modeling of Pulsed Direct-Current Glow Discharge
Modeling of Pulsed Direct-Current Glow Discharge
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DOI:
10.1088/1009-0630/12/4/13
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发表时间:
2010-08
影响因子:
1.7
通讯作者:
Du Mu;Zheng Ya-ru;Fan Yu-jia;Zhang Nan;Li Cheng-sen;Wang De-zhen
中科院分区:
文献类型:
--
作者:
Du Mu;Zheng Ya-ru;Fan Yu-jia;Zhang Nan;Li Cheng-sen;Wang De-zhen
A self-consistent model was adopted to study the time evolution of low-voltage pulsed DC glow discharge. The distributions of electric field, ion density and electron density in nitrogen were investigated in our simulation, and the temporal shape of the discharge current was also obtained. Our results show that the dynamic behaviors of the discharge depends strongly on the applied pulse voltage, and the use of higher pulse voltages results in a significantly increase of discharge current and a decrease of discharge delay time. The current-voltage characteristic calculated by adjusting secondary electron emission coefficient for different applied pulse voltage under the gas pressure of 1 Torr is found in a reasonable agreement with the experimental results.