Discharge ignition characteristics of pulsed radio-frequency glow discharges in atmospheric helium

Journal Article · Wed Jul 15 00:00:00 EDT 2009 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3184824· OSTI ID:21277277

Jianjun, Shi; Yeqing, Cai; Jie, Zhang; Ke, Ding; Jing, Zhang ^[1]

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1. State Key Lab for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, and College of Science, Donghua University, Shanghai 201620 (China)

An experimental study of radio-frequency (15 MHz) glow discharges in atmospheric helium modulated by pulses with repetition frequency of 500 kHz and duty cycle of 6% and 8% is presented in this paper. In each discharge burst, the discharge is restricted to operate in ignition phase with duration of one or two radio-frequency cycles. The ignition characteristics in terms of spatial-temporal evolution of discharge interelectrode structure and optical emission intensity are investigated by time resolved imaging. Optical emission intensities at lines of 706 and 777 nm are used to capture clearly the temporal evolution of energetic electrons and active specie of atom oxygen generated in discharge.

• OSTI ID: 21277277
• Journal Information: Physics of Plasmas, Vol. 16, Issue 7; Other Information: DOI: 10.1063/1.3184824; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
GLOW DISCHARGES
HELIUM
HIGH-FREQUENCY DISCHARGES
TAIL ELECTRONS
THERMONUCLEAR IGNITION