The Excitation and the OH Band Rotation Temperatures of a Plasma Jet Light Source

抄録

Methods of the measurement of the excitation and the rotation temperatures under a variety of discharge conditions were reported in detail. Two sorts of the discharge gases, which were Ar-N₂ and Ar, were compared. Effects of the desolvation of solution samples, the additions of KCl to the samples and the observed points of different heights etc., on the temperatures' changes were discussed. Lateral and radial distributions of the spectral line intensities were measured. These two distributions in the case of the excitation temperature had a same inclination which was flat in the center of the discharged plasma. But in the case of the OH band rotation temperature, the radial intensity distribution was ringlike in the outer side of the discharged plasma, and the temperature measurement was possible only in this area. The partial pressures of OH in the discharge gas were calculated. From thermochemical calculations, intensity changes of the OH band according to temperature changes were obtained and these coincide with the above results.