A fundamental study of laser-induced breakdown spectroscopy using fiber optics for remote measurements of trace metals. Interim progress report

Technical Report · Wed Jan 01 00:00:00 EST 1997

DOI:https://doi.org/10.2172/13444· OSTI ID:13444

Goode, S R; Angel, S M

'The long-term goal of this project is to develop a system to measure the elemental composition of unprepared samples using laser-induced breakdown spectroscopy, LIBS, with a fiber-optic probe. From images shown in this report it is evident that the temporal and spatial behavior of laser-induced plasmas IS a complex process. However, through the use of spectral imaging, optimal conditions can be determined for collecting the atomic emission signal in these plasmas. By tailoring signal collection to the regions of the plasma that contain the highest emission signal with the least amount of background interference both the detection limits and the precision of LIBS measurements could be improved. The optimal regions for both gated and possibly non-gated LIBS measurements have been shown to correspond to the inner regions and outer regions, respectively, in an axial plasma. By using this data fiber-optic LIBS probe designs can be optimized for collecting plasma emission at the optimal regions for improved detection limits and precision in a LIBS measurement.'

• Research Organization: Univ. of South Carolina, Columbia, SC (US)
• Sponsoring Organization: USDOE Office of Environmental Management (EM), Office of Science and Risk Policy
• DOE Contract Number: FG07-96ER62305
• OSTI ID: 13444
• Report Number(s): EMSP-55205-97; ON: DE00013444
• Country of Publication: United States
• Language: English

Related Subjects

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Progress Report
Laser Spectroscopy
Ablation
Remedial Action
Decontamination
Decommissioning
High-Level Radioactive Wastes
Radioactive Wastes
Chemical Wastes
PROGRESS REPORT
LASER SPECTROSCOPY
ABLATION
REMEDIAL ACTION
DECONTAMINATION
DECOMMISSIONING
HIGH-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTES
CHEMICAL WASTES