Measurement of Stark broadening of Mn I and Mn II spectral lines in plasmas used for laser-induced breakdown spectroscopy

F. BREDICE, F. O. BORGES, H. SOBRAL, M. VILLAGRÁN MUÑIZ, H. O. DI ROCCO, G. CRISTOFORETTI, S. LEGNAIOLI, V. PALLESCHI, A. SALVETTI AND E. TOGNONI.

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY

Año: 2007 vol. 62 p. 1237 - 1245

0584-8547

In this paper, we present measurements of the line broadening of several Mn lines in the conditions of typical LIBS experiments.  Single and double pulse LIBS configurations are studied on a series of Fe-Mn alloy samples with Mn concentration ranging from 6% to 30%. The effects of self-absorption on the measured line broadenings are discussed in detail. The experimental measurements of line broadening of singly ionized manganese are presented and compared with the theoretical and experimental data present in the literature. For the first time, experimental measurements of neutral manganese line broadening are also presented.