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Influence of gas's flux on ionization efficiency in dielectric barrier discharge ion source

GAO Lei1,TANG Fei2,WANG Xiao-hao2,XIONG Ji-jun1(1.Key Laboratory of Instrumentation Science & Dynamic Measurement,North University of China,Taiyuan 030051,China;2.State Key Laboratory of Precision Measurement Technology and Instruments,Department of Precision Instrument and Mechanology,Tsinghua University,Beijing 100084,China)  
The method of experimentation is used to research the ionization efficiency in dielectric barrier discharge ion source in condition of gas's different flux.The object of this experiment is the standard mixtures gases of ethanol in nitrogen.Research findings show that the ionization efficiency of this ion source is diminished with when the gas's flux is increased.For example,when the flux is 60 L/h,the ionization efficiency is as high as 33 %,but ionization efficiency is decreased tempestuously with the increasing of flux.Once the flux overstep about 160 L/h,the decreasing trend of the ionization efficiency gets smaller.When the flux reaches the maximum(400 L/h) the ionization efficiency gets the minimum(about 3.5 %).
【Fund】: 国家科学仪器设备升级改造专项计划资助项目(2006JG004900)
【CateGory Index】: TH843
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Chinese Journal Full-text Database 2 Hits
1 ;Application Research of Dielectric Barrier Discharge to Produce Plasma[J];High Voltage Engineering;2002-S1
2 Xu Feng Wang Hailong Guan Yafeng **(Laboratory of modern Analytical Chemistry and Microinstrumentation, Dalian Ins titute of Chemical Physics, Chinese Academy of Sciences, Dalian 116012, China);Progress in Ion Mobility Spectrometry[J];Progress In Chemistry;2005-03
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