NDLI: Spark gap discharge properties measured by optical emission spectroscopy

Content Provider	IEEE Xplore Digital Library
Author	Reddy, C.S. Pasula, N. Sharma, A. Sarathi, R. Mittal, K.C.
Copyright Year	2014
Description	Author affiliation: Indian Inst. of Technol., Madras, Chennai, India (Sarathi, R.) \|\| Accel. & Pulse Power Div., Bhabha Atomic Res. Centre, Mumbai, India (Reddy, C.S.; Pasula, N.; Sharma, A.; Mittal, K.C.)
Abstract	The breakdown study of Spark gap has long been a research area of interest for many pulse power applications. The electron properties like electron density and temperature are essential for understanding of the discharge properties. These plasma properties can be measured effectively by using a non-invasive approach. Optical emission spectroscopy was employed to study a spark gap with pulse discharges, based on the measurement of certain line ratios. The inter-electrode distance of 10mm was used in the study. Argon, Nitrogen and helium gasses were used as dielectric medium at 0-2 $kg/cm^{2}$ pressure. An impulse voltage (double exponential pulse with a front time of 1.2μs and tail time of 50μs) is applied to the sparkgap of which electrodes are of rogowsky profile type and thickness of 15mm. The life time of the exited atoms are estimated for argon, nitrogen and Helium gas ambiance for varying pressure conditions. Based on the life time profiles, important plasma parameters such as the electron temperature and electron number density are determined by the intensity ratio of emission lines of excited atoms. It is observed that filling pressure influence strongly the plasma parameters. The obtained results are in agreement over a wide electron density range $10^{9}-10^{15}$ $cm^{-3}.$
Starting Page	458
Ending Page	461
File Size	207733
Page Count	4
File Format	PDF
ISBN	9781467373234
e-ISBN	9781479940479
DOI	10.1109/IPMHVC.2014.7287310
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spectroscopy spectroscopy Breakdown Discharges (electric) electron density Argon Helium Sparks Nitrogen Plasma temperature plasma temperature Spark gap
Content Type	Text
Resource Type	Article

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