%0 Journal Article %K laser %K spectroscopy %K thermal %A David A Wruck %A Richard E Russo %A Robert J Silva %B Journal of Alloys and Compounds %D 1994 %F Laser %G eng %P 481-483 %R 10.1016/0925-8388(94)90966-0 %T Thermal lens spectroscopy of plutonium using laser diode and fiber optics %V 213-214 %8 10/1994 %X

A thermal lens spectrometer for the analysis of Pu(VI) in liquids is described. The use of fiber optics and a pulsed laser diode excitation source results in a compact system which can be adapted to measurements in process streams or in the field. The detection limit is 1 × 10−6 M Pu(VI) at 831 nm. The performance of the laser-diode-based spectrometer for Pu(VI) detection is comparable with that of dye-laser-based photothermal or photoacoustic spectroscopy.