Analytical laser ablation of solid samples for ICP, ICP-MS, and FAG-MS analysis

This invention is improved laser ablation of solid samples analyzed by inductively coupled plasma (ICP), ICP mass spectrometry, or flowing afterglow mass spectrometry. A mirror-with-hole eliminates chromatic aberration in sample viewing and allows rad-hardening for radiation hot cell analysis of nuc...

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Bibliographische Detailangaben
Hauptverfasser:	FRY ROBERT C, ARNOLD MADELINE J, HUGHES STEVEN K
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MACHINE TOOLS MEASURING METAL-WORKING NOT OTHERWISE PROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS SOLDERING OR UNSOLDERING TESTING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	This invention is improved laser ablation of solid samples analyzed by inductively coupled plasma (ICP), ICP mass spectrometry, or flowing afterglow mass spectrometry. A mirror-with-hole eliminates chromatic aberration in sample viewing and allows rad-hardening for radiation hot cell analysis of nuclear waste. Other attributes facilitate comprehensively rad-hardened laser ablation. Additional improvements include large, homogeneous laser spots, long-focus objective lenses, variable laser path length with built-in re-alignment, variable demagnification ratio, higher powered SMR lasers with larger spots enabling sensitive bulk solids analysis, demountable gravitationally self sealing stack assembly sample ablation cells, and laser ablation sample changers.