1. 浙江大学热能工程研究所，能源清洁利用国家重点实验室，浙江 杭州 310027 2. UMR 6614 CNRS CORIA, Saint Etienne du Rouvray 76801, France
Spectroscopic Diagnostics of DC Argon Plasma at Atmospheric Pressure
TU Xin1，2,LU Sheng-yong1, YAN Jian-hua1,MA Zeng-yi1,PAN Xin-chao1,CEN Ke-fa1,CHERON Bruno2
1. Institute for Thermal Power Engineering，State Key Laboratory of Clean Energy Utilization，Zhejiang University，Hangzhou 310027， China 2. UMR 6614 CNRS CORIA，Saint Etienne du Rouvray 76801，France
Abstract：The optical emission spectra of DC argon plasma at atmospheric pressure were measured inside and outside the arc chamber. The electron temperature was determined from the Boltzmann plot, and the electron density was derived from Stark broadening of ArⅠ lines. The criteria for the existence of local thermodynamic equilibrium(LTE)in the plasma was discussed. The results indicate that the DC argon plasma at atmospheric pressure under our experimental conditions is in LTE.
[1] Bonizzoni G，Vassallo E. Vacuum，2002，64：327. [2] Conrads H，Schmidt M. Plasma Sources Sci. Technol.，2000，9：441. [3] Konjevic N. Plasma Sources Sci. Technol.，2001，10：356. [4] ZHAO Wen-hua，SHEN Yan，CHEN Li-ming(赵文华，沈 岩，陈黎明). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2004，24(8)：897. [5] TANG Yu-guo，LI Fu-tian(唐玉国，李福田). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，1996，16(1)：11. [6] Griem H R. Plasma Spectroscopy. New York: McGraw-Hill Book Company, 1964. [7] Griem H R. Spectral Line Broadening by Plasma. New York：Academic，1974. [8] ZHAO Wen-hua，TANG Huang-zai，TIAN Kuo, et al(赵文华，唐皇哉，田 阔, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2004，24(4)：388. [9] Goldbach C, Nollez G, Plomdeur P. J. Phys. B: Atom. Molec. Phys., 1977, 10(6): 1181. [10] Deron C. PhD Thesis, CNRS et Ecole Central de Paris, 2003(In French). [11] Griem H R. Phys. Rev.，1963，131(3)：1170. [12] Richard H H, Stanley L L. Plasma Diagnostic Techniques. New York：Academic，1965. [13] Drawin H W. High Pressures-High Temperatures，1970，2：359. [14] Nubbemeyer H. J. Quant. Spectrosc. Radiat. Transfer，1976，16：395.
