The Korall-1 atomic spectral analysis laser

A Nd-doped glass laser is used in conjunction with arc-discharge or spark-discharge generators to sample test materials, particularly nonconductive materials or alloys, in laser emission spectral analysis. The optics of the laser and microscope system (one 80X microscope-telescope subsystem for positioning the test specimen and for focus, one 16X microscope for the electrode setting) are presented in detail. Discharges evaporate the test sample on the electrodes. Laser power, degree of focusing, and electrode settings can be varied. Ordinary medium-dispersion spectrographs, ordinary photographic materials, and standard arc generators or spark generators can be employed in the analysis. Analysis time is fairly long, but can be shortened by carrying out sampling and evaporation in the discharge simultaneously.