METHOD AND DEVICE FOR OPTICAL RADIATION SPECTROSCOPY OF LASER-EXCITED FLUID

摘要

FIELD: physics. ^ SUBSTANCE: invention concerns method of optical radiation spectroscopy of fluid excited by impulse laser focused on its surface. The method claimed by the invention involves scanning of analysed zone with a laminar gas flow with such speed and cross-section that enables the flow to remove plasma residues suspended in gas as a result of the first laser impulse impact, before the second laser impulse comes. ^ EFFECT: improved repeatability and precision of spectroscopic analysis. ^ 11 cl, 4 dwg