A simple device of generating glow discharge plasma in atmospheric pressure argon

Journal Article · Mon Oct 15 00:00:00 EDT 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2800814· OSTI ID:21013714

Xuechen, Li; Lifang, Dong; Na, Zhao; Zengqian, Yin; Tongzhen, Fang; Long, Wang ^[1]

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1. College of Physics Science and Technology, Hebei University, Baoding 071002 (China)

Atmospheric pressure glow discharge is realized in argon by using a plasma needle. With increasing the applied voltage, uniform plasma increases in scale from a small region near the needle tip to a plasma plume with a length of about 20 mm. The discharge mechanism is discussed based on the light emission waveforms from the plasma. Optical emission spectroscopy is used to determine excited electron temperature and vibrational temperature, and the results indicate that the excited electron temperature and the molecular vibrational temperature are about 6000 and 2300 K, respectively.

• OSTI ID: 21013714
• Journal Information: Applied Physics Letters, Vol. 91, Issue 16; Other Information: DOI: 10.1063/1.2800814; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ARGON
ATMOSPHERIC PRESSURE
ELECTRIC POTENTIAL
ELECTRON TEMPERATURE
EMISSION SPECTROSCOPY
GLOW DISCHARGES
ION TEMPERATURE
PHOTOLUMINESCENCE
PLASMA
PLASMA PRESSURE
VISIBLE RADIATION
WAVE FORMS