Authors : B.K. Pramanik, Somlal Das, K. Subrata Pramani and A. Hatta
Abstract: The effect of rare gas (He, Ne, Ar, Kr and Xe) admixture on the emission intensity of N2/O2 gas discharge has been studied aiming to apply the UV emission for sterilization. N2/O2 discharge emits intensive UV light in the 200-400 nm region which has germicidal effect and so it can be used for sterilization purpose. Experiments were carried out with He, Ne, Ar, Kr and Xe gases at different percentages of concentration to enhance the intensity of the emission from N2/O2 discharge. It has been observed that at low concentration <5%, these gases have no effect on the emission intensity whereas the emission intensity in both the UV and visible ranges decrease as the rare gas concentration is increased. Rare gases behave as buffer gases which cause collisions with the other co-existing molecules and decrease the emission intensity.
B.K. Pramanik, Somlal Das, K. Subrata Pramani and A. Hatta, 2010. Effect of Rare Gas Admixture on N2 /O2 Gas Mixture Discharge. Journal of Engineering and Applied Sciences, 5: 347-353.