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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1002

Title: Predicting gas decomposition in an industrialized pulsed CO2 laser
Authors: Forbes, A
Botha, L
Keywords: TEA lasers
Catalysts
Issue Date: Mar-2005
Publisher: International Society for Optical Engineering
Citation: Forbes, A and Botha, L. 2005. Predicting gas decomposition in an industrialized pulsed CO2 laser. Proceedings of SPIE, vol. 5777, pp 491-494
Abstract: A model is developed for the breakdown and regeneration of component gases in an industrialised TEA CO2 laser, both with and without internal catalysts, and is found to be in excellent agreement with experimental data. The laser was found to be stable at O2 levels in excess of 2%, whereas previously reported values suggest stable operation at values of less than 1%. This is thought to be related to the unusually high starting CO2 concentration of the gas mix, and the short time pulse of the laser output. Long term catalytic behaviour however shows a decay in the catalyst activity, corresponding to higher energy variation and lower average power.
Description: Copyright: 2005 International Society for Optical Engineering
URI: http://hdl.handle.net/10204/1002
ISSN: 0277-786X
Appears in Collections:Laser physics and technology
Laser materials processing
General science, engineering & technology

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