Optical emission from spark discharge in water : evaluation of plasma temperature

Timoshkin, I. V. and Given, M. J. and Wilson, M. P. and Wang, T. and MacGregor, S. J. and Bonifaci, N.; (2015) Optical emission from spark discharge in water : evaluation of plasma temperature. In: Proceedings of 22nd International Symposium on Plasma Chemistry. IPCS - International Plasma Chemistry Society, BEL, P-I-3-32-1-3.

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Abstract

High voltage spark discharges in water are characterised by intensive light emission which can be used for evaluation of plasma temperature in the discharge cavity. This paper presents a study of the plasma temperature of spark discharges in tap and distilled water as a function of the inter-electrode distance. The results show that plasma temperature reaches its maximum at a specific inter-electrode gap