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An atmospheric pressure plasma torch is generated with a hollowneedle-to-plate dielectric barrier discharge and the electron densities in the inside and at the surface of the plasma torch are measured by optical emission spectroscopy (OES). A plasma torch with 1cm long is generated in atmospheric ambient when argon gas is introduced through the hollwneedle. The Stark broadenings of Hα and ArⅠ(696.54 nm) lines, which are decomposed from the experimental profiles by using deconvolution method, are used to estimate the corresponding electron densities. The electron densities are 1.0×1015 cm－3 and 3.78×1015 cm－3 corresponding to the Stark broadening of Hα and ArⅠ(696.54 nm) lines, respectively. The electron density calculated from the Stark broadening of Hα is the same as that at the surface of the plasma because Hα line originates from the dissociation and the excitation of H\-2O at the plasma torch surface where argon can meet with atmosphere. While the electron density calculated from the Stark broadening of ArⅠ(696.54 nm)line is the same as that in the insid of plasma.
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Keywords:
- plasma torch /
- electron density /
- gas temperature /
- Stark broadening
[1] NozakiT, UnnoY, MiyazakiY, OkazakiK 2001 J. Phys. D: Appl. Phys. 34 2504
[2] Yang J, Xu Y Q, Zhu L M 2008 Acta Phys . Sin. 57 1788 (in Chinese) [杨 涓、许映乔、朱良明 2008 57 1788]
[3] Fantz U, Wünderlich D 2006 New Journal of Physics 8 301
[4] Wang Q, Doll F, Donnelly V, Economou D J, Sadeghi N, Franz G F 2007 J. Phys. D: Appl. Phys. 40 4202
[5] Zhang H C, Lu J, Ni X W 2009 Acta Phys . Sin. 58 4034 (in Chinese) [张宏超、陆 建、倪晓武 2009 58 4034]
[6] Zhang X H,Huang J, Liu X D,Peng L, Sun Y, Chen W, Feng K C, Yang S Z 2009 Acta Phys . Sin. 58 1595 (in Chinese) [张先徽、黄 骏、刘筱娣、彭 磊、孙 岳、陈 维、冯克成、杨思泽 2009 58 1595]
[7] Zhang Y,Gu B,Wang W C,Peng X W,Wang D Z 2009 Acta Phys . Sin. 58 5532 (in Chinese) [张 燕、顾 彪、王文春、彭许文、王德真 2009 58 5532]
[8] Wang C,Fang Z H,Sun J R, Wang W,Xiong J 2008 Acta Phys. Sin. 57 7770 (in Chinese) [王 琛、方智恒、孙今人、王 伟、熊 俊 2008 57 7770]
[9] Ding Z F, Sun J Z, Wang D Z, Wu J, Zhang J, Zhang P Y 2008 Chin. Phys. B 17 1848
[10] Moisan M, Ferreira C M, Hajlaoui Y, Henry D, Hubert J, Pantel R, Ricard A, Zakrazewski Z 1982 Revue Phys. Appl. 17 707
[11] Kunze K, Miclea M, Musa G, Franzke J, Vadla C, Niemax K, 2002 Spectrochimica Acta B 57137
[12] Abdellatif G, Imam H. 2002 Spectrochimica Acta B:Atomic Spectroscopy 57 1155
[13] Griem H R 1964 Plasma spectroscopy (New York:McGraw-Hill) p492
[14] Wujec T, Olchawa W, Halenka J, Musielok J 2002 Phys. Rev. E 6 066403
[15] Guo Q C, Liu L Y, Wang D Z, Zhang J L 2010 Chin. Phys. B 19 2653
[16] Konjevic ' N 2001 Plasma Sources Sci. Technol.10 356
[17] Pellerin S, Musiol K, Pokrzywka B, Chapelle J 1996 J. Phys. B:At.Mol.Opt.Phys. 29 3911
[18] Ying M J, Xia Y Y, Sun Y M, Lu Q M, Zhao M W, Liu X D 2003 Applied Surface Science 207 227
[19] Kiriu S, Miyazoe H, Takamine F, Sai M, Choi J H, Tomai T, Terashima K 2009 Appl . Phys. Lett. 94 191502
[20] Yanguas-Gil A, Focke K, Benedikt J, von Keudella A 2007 J. Appl. Phys. 101 103307
[21] Pellerin S, Musiol K, Pokrzywka B, Chapelle J1996 J. Phys. B 29 3911
[22] Potekhin A Y, Chabrier G, Gilles D, 2002 Phys. Rev. E 65 1
[23] Luque J, Crosley D R 1999 LIFBASE: Database and spectral simulation (version 1.5), SRI International Report No. MP 99—009 (1999)
[24] Yubero C, García M C, Calzada M D 2006 Spectrochimica Acta Part B 61 540
[25] Dong L F, Qi Y Y, Liu W Y, Fan W L 2009 J. Appl. Phys. 106 013301
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[1] NozakiT, UnnoY, MiyazakiY, OkazakiK 2001 J. Phys. D: Appl. Phys. 34 2504
[2] Yang J, Xu Y Q, Zhu L M 2008 Acta Phys . Sin. 57 1788 (in Chinese) [杨 涓、许映乔、朱良明 2008 57 1788]
[3] Fantz U, Wünderlich D 2006 New Journal of Physics 8 301
[4] Wang Q, Doll F, Donnelly V, Economou D J, Sadeghi N, Franz G F 2007 J. Phys. D: Appl. Phys. 40 4202
[5] Zhang H C, Lu J, Ni X W 2009 Acta Phys . Sin. 58 4034 (in Chinese) [张宏超、陆 建、倪晓武 2009 58 4034]
[6] Zhang X H,Huang J, Liu X D,Peng L, Sun Y, Chen W, Feng K C, Yang S Z 2009 Acta Phys . Sin. 58 1595 (in Chinese) [张先徽、黄 骏、刘筱娣、彭 磊、孙 岳、陈 维、冯克成、杨思泽 2009 58 1595]
[7] Zhang Y,Gu B,Wang W C,Peng X W,Wang D Z 2009 Acta Phys . Sin. 58 5532 (in Chinese) [张 燕、顾 彪、王文春、彭许文、王德真 2009 58 5532]
[8] Wang C,Fang Z H,Sun J R, Wang W,Xiong J 2008 Acta Phys. Sin. 57 7770 (in Chinese) [王 琛、方智恒、孙今人、王 伟、熊 俊 2008 57 7770]
[9] Ding Z F, Sun J Z, Wang D Z, Wu J, Zhang J, Zhang P Y 2008 Chin. Phys. B 17 1848
[10] Moisan M, Ferreira C M, Hajlaoui Y, Henry D, Hubert J, Pantel R, Ricard A, Zakrazewski Z 1982 Revue Phys. Appl. 17 707
[11] Kunze K, Miclea M, Musa G, Franzke J, Vadla C, Niemax K, 2002 Spectrochimica Acta B 57137
[12] Abdellatif G, Imam H. 2002 Spectrochimica Acta B:Atomic Spectroscopy 57 1155
[13] Griem H R 1964 Plasma spectroscopy (New York:McGraw-Hill) p492
[14] Wujec T, Olchawa W, Halenka J, Musielok J 2002 Phys. Rev. E 6 066403
[15] Guo Q C, Liu L Y, Wang D Z, Zhang J L 2010 Chin. Phys. B 19 2653
[16] Konjevic ' N 2001 Plasma Sources Sci. Technol.10 356
[17] Pellerin S, Musiol K, Pokrzywka B, Chapelle J 1996 J. Phys. B:At.Mol.Opt.Phys. 29 3911
[18] Ying M J, Xia Y Y, Sun Y M, Lu Q M, Zhao M W, Liu X D 2003 Applied Surface Science 207 227
[19] Kiriu S, Miyazoe H, Takamine F, Sai M, Choi J H, Tomai T, Terashima K 2009 Appl . Phys. Lett. 94 191502
[20] Yanguas-Gil A, Focke K, Benedikt J, von Keudella A 2007 J. Appl. Phys. 101 103307
[21] Pellerin S, Musiol K, Pokrzywka B, Chapelle J1996 J. Phys. B 29 3911
[22] Potekhin A Y, Chabrier G, Gilles D, 2002 Phys. Rev. E 65 1
[23] Luque J, Crosley D R 1999 LIFBASE: Database and spectral simulation (version 1.5), SRI International Report No. MP 99—009 (1999)
[24] Yubero C, García M C, Calzada M D 2006 Spectrochimica Acta Part B 61 540
[25] Dong L F, Qi Y Y, Liu W Y, Fan W L 2009 J. Appl. Phys. 106 013301
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