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The influence of the Ne/Ar buffer gases on the XeI2 excimer radiation intensity in a dielectric barrier discharge at moderate pressures

L. C. CIOBOTARU1,* , C. POROSNICU1

Affiliation

  1. National Institute for Lasers, Plasma and Radiation Physics, Atomistilor 409, PO Box MG – 36, Magurele, Romania

Abstract

The paper presents the comparative results concerning the excimer intensity radiation emitted by a xenon-iodine gas mixture with and without buffer-gases, namely Ar and Ne, in a dielectric barrier discharge (DBD) at moderate pressure. The excimer radiation reaches an optimum for a given value of the gas mixture total pressure due to the existence of two antagonist processes: the “harpoon” reaction and the quenching reaction. Changes appear in the presence of the buffergas. Thus, the addition of the Ar to the XeI- excimer gas mixture diminishes the excimer radiation intensity while the Ne addition produces an enhancement of the emitted radiation..

Keywords

Excimer radiation, Buffer-gas, DBD- type discharge, UV source radiation.

Submitted at: Oct. 16, 2008
Accepted at: Dec. 10, 2008

Citation

L. C. CIOBOTARU, C. POROSNICU, The influence of the Ne/Ar buffer gases on the XeI2 excimer radiation intensity in a dielectric barrier discharge at moderate pressures, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 12, pp. 3172-3176 (2008)