Study of Plasma Temperature Measurements for Oxygen Discharge

	Study of Plasma Temperature Measurements for Oxygen Discharge
	Li Liu-cheng; Wang Zeng-qiang; Li Guo-fu; Duo Li-ping
刊名	spectroscopy and spectral analysis
	2011-10-01
卷号	31 期号:10 页码:2651-2654
关键词	Oxygen plasma Temperautre measurements Spectrum simulation Slit function
英文摘要	a radio-frequency discharge setup was constructed by two shell-shaped copper electrodes and a 30 cm long pyrex glass tube (i. d. =1. 65 cm) to examine the gas temperature of oxygen plasma in electric discharge oxygen iodine laser. the discharge was supplied by a 500 watt, 13. 56 mhz radio-frequency power. the gas pressure in the discharge cavity was 1 330 pa. the temperature of oxygen discharge plasma was measured by using the p branch of o(2)(b, nu=0) rotational emission spectrum. two methods were used to deduce the oxygen gas temperature. they are boltzman plotting method and computer simulating spectrum method, respectively. gauss fitting method was used to distinguish spectrum peaks for lower resolution spectrum. the spectrum peak area was used to characterize the optical emission intensity. the gas temperature of oxygen discharge plasma was obtained by boltzmann plotting method. alternatively, the optical emission spectrum was simulated by computer modeling with spectrometer slit function which was obtained by he-ne laser. consequently, the gas temperature of oxygen plasma was obtained by comparing the computer simulating spectrum and the experimentally observed spectrum according to the least square fitting rule. the measurement results with the two methods agree well. it was concluded that the simple optical technique can be used conveniently in the temperature diagnostics of oxygen radio-frequency discharge plasma.
WOS标题词	science & technology ; technology
类目[WOS]	spectroscopy
研究领域[WOS]	spectroscopy
收录类别	SCI
语种	英语
WOS记录号	WOS:000295556300013
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/142523]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Chem Lasers, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Li Liu-cheng,Wang Zeng-qiang,Li Guo-fu,et al. Study of Plasma Temperature Measurements for Oxygen Discharge[J]. spectroscopy and spectral analysis,2011,31(10):2651-2654.
APA	Li Liu-cheng,Wang Zeng-qiang,Li Guo-fu,&Duo Li-ping.(2011).Study of Plasma Temperature Measurements for Oxygen Discharge.spectroscopy and spectral analysis,31(10),2651-2654.
MLA	Li Liu-cheng,et al."Study of Plasma Temperature Measurements for Oxygen Discharge".spectroscopy and spectral analysis 31.10(2011):2651-2654.