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 New-Wave 213 nm wavelength laser ablation unit |
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A LUV 213 laser ablation sample introduction system manufactured by New-Wave was installed in the Department in the spring of 2001. The LUV 213 laser source is a flash lamp-pumped Nd: YAG laser which produces a 200 mJ beam at 1064 nm. The laser beam is polarized and the passes through a series of harmonic resonators resulting in a final laser beam of up to 5 mJ of 213 nm ultraviolet light. The laser beam diameter (“spot size”) can be adjusted from 5 to 400 microns using a beam expander and iris. The sample stage position is controlled by the LUV 213’s computer and the laser ablation process is monitored using a digital camera. The sample stage is designed to hold thin sections, 25mm cores, and probe-type epoxy mounts. The Department of Geological Sciences’ laser ablation system in housed in the ICP Mass Spectrometry lab and can be readily interfaced with the Agilent 7500ce or IsoProbe. |
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