Comment on "Hydrogen Balmer beta: The separation between line peaks for plasma electron density diagnostics and self-absorption test". (July 2015)

• Record Type: Journal Article
• Authors: Gautam, Ghaneshwar; Surmick, David M.; Parigger, Christian G.
• Is Part Of: Journal of quantitative spectroscopy & radiative transfer. Volume 160(2015:Oct.)
• Page Start: 19
• Page End: 21
• Publication Date: 2015-07
• Subjects: Optical emission spectroscopy -- Stark broadening -- Hydrogen -- Plasma diagnostics -- Electron density; Spectrum analysis -- Periodicals; Radiation -- Periodicals; Analyse spectrale -- Périodiques; Rayonnement -- Périodiques; Radiation; Spectrum analysis; Periodicals; 543.0858
• DOI: 10.1016/j.jqsrt.2015.03.015
• Languages: English
• ISSNs: 0022-4073

Abstract

Abstract: In this letter, we present a brief comment regarding the recently published paper by Ivković et al., J Quant Spectrosc Radiat Transf 2015;154:1–8. Reference is made to previous experimental results to indicate that self absorption must have occurred; however, when carefully considering error propagation, both widths and peak-separation predict electron densities within the error margins. Yet the diagnosis method and the presented details on the use of the hydrogen beta peak separation are viewed as a welcomed contribution in studies of laser-induced plasma. Abstract : Highlights: Balmer series H β line for determination of electron density. Compare FWHM with peak-separation method. Apply to laser induced plasma characterization. Comment on self-absorption.