Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/43749
Citations
Scopus Web of ScienceĀ® Altmetric
?
?
Type: Journal article
Title: Laser diagnostics of welding plasma by polarization spectroscopy
Author: Lucas, O.
Alwahabi, Z.
Linton, V.
Meeuwissen, K.
Citation: Applied Spectroscopy, 2007; 61(5):565-569
Publisher: Soc Applied Spectroscopy
Issue Date: 2007
ISSN: 0003-7028
1943-3530
Statement of
Responsibility: 
Owen Lucas, Zeyad T. Alwahabi, Valerie Linton, and Karel Meeuwissen
Abstract: The application of polarization spectroscopy (PS) to detect atomic species in an atmospheric pressure welding plasma has been demonstrated. PS spectra of Na atoms, seeded in the shielding gas flow of a gas tungsten arc welding (GTAW) plasma, are presented at different pump beam energies. The nature of the PS technique was found to be very efficient in suppressing the high background emission associated with the welding plasma. The PS spectral profiles appear to be Lorentzian and Lorentzian cubed for high and low pump beam energy, respectively. The effect of beam steering, due to the thermal gradient in the interaction plasma zone, was addressed. It was found that there is 2% unavoidable error in the detectable PS signal.
Keywords: Gases; Refractometry; Spectrum Analysis; Materials Testing; Lasers; Algorithms; Hot Temperature
RMID: 0020070750
DOI: 10.1366/000370207780807740
Published version: http://www.opticsinfobase.org/abstract.cfm?URI=as-61-5-565
Appears in Collections:Mechanical Engineering publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.