PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Comparative Study on Excitation Temperature, Electron Temperature and Electron Density in an Atmospheric Argon Microwave Plasma |
WANG Zhong**, ZHANG Gui-Xin, LIU Cheng, JIA Zhi-Dong |
Department of Electrical Engineering, Tsinghua University, Beijing 100084
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Cite this article: |
WANG Zhong, ZHANG Gui-Xin, LIU Cheng et al 2014 Chin. Phys. Lett. 31 055203 |
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Abstract An infinite-volume of atmospheric argon microwave plasma is produced in the microwave plasma source based on the inductive coupling window-rectangular resonator under the input of the microwave power at 2.45 GHz. The excitation temperature of the plasma is studied by using the Boltzmann plot of Ar I lines in two different wavelength ranges while the electron temperature is researched by using line-to-continuum intensity ratio of Ar I lines. The electron density is compared by using the Stark broadenings of Ar I lines at 522.13 nm and 549.59 nm and Hβ line at 486.13 nm.
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Published: 24 April 2014
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PACS: |
52.80.Pi
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(High-frequency and RF discharges)
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52.50.Dg
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(Plasma sources)
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52.70.Kz
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(Optical (ultraviolet, visible, infrared) measurements)
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Abstract
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