Abstract

Statistical emission maps of ferrous alloy samples were obtained by using stable spark discharge trains for improved sampling resolution. Large changes in emission intensities were observed for matrix and alloying elements as a function of position on the sample. By using several complementary experimental systems, the source of the changes in emission intensities was traced to the sample and was mainly due to changes in the sampling efficiency. Although large changes in emission intensities were observed, there were groups of correlating signals that followed one another. A correlation-based treatment of the emission map data provides analytically useful information including compensating for the sample-dependent changes in erosion of material from the sample electrode.

Application of fiber optic high repetition rate laser-ablation spark-induced breakdown spectroscopy on the elemental analysis of aluminum alloys

Xiaoyong He, Runhua Li, and Yuqi Chen
Appl. Opt. 58(31) 8522-8528 (2019)

Emission Characteristics of Vacuum Spark Discharges

J. C. Wahr, W. W. McCormick, and R. A. Sawyer
J. Opt. Soc. Am. 43(3) 151-156 (1953)

Analysis of the Excitation Characteristics of Spectra Emitted by Ferrous Alloys*

J. K. Hurwitz and J. Convey
J. Opt. Soc. Am. 42(1) 24-30 (1952)

Gold fineness measurement using single-shot spark assisted laser-induced breakdown spectroscopy

Mahdi Habibpour, Parviz Parvin, and Reza Amrollahi
Appl. Opt. 60(5) 1099-1109 (2021)

Optical emission enhancement using laser ablation combined with fast pulse discharge

Weidong Zhou, Kexue Li, Qinmei Shen, Qiaoling Chen, and Jingming Long
Opt. Express 18(3) 2573-2578 (2010)