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Application of response surface methodology to laser-induced breakdown spectroscopy: influences of hardware configuration

Cowpe, JS, Astin, JS, Pilkington, RD, Hill, AE, Longson, M and Robinson, T 2007, 'Application of response surface methodology to laser-induced breakdown spectroscopy: influences of hardware configuration' , Spectrochimica Acta Part B: Atomic Spectroscopy, 62 (12) , pp. 1335-1342. (In Press)

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    Abstract

    Response Surface Methodology (RSM) was employed to optimise LIBS analysis of single crystal silicon at atmospheric pressure and under vacuum conditions (pressure ~10-6mbar). Multivariate analysis software (StatGraphics 5.1) was used to design and analyse several multi-level, full factorial RSM experiments. A Quality Factor (QF) was conceived as the response parameter for the experiments, representing the quality of the LIBS spectrum captured for a given hardware configuration. The QF enabled the hardware configuration to be adjusted so that a best compromise between resolution, signal intensity and signal noise could be achieved. The effect on the QF of simultaneously adjusting spectrometer gain, gate delay, gate width, lens position and spectrometer slit width was investigated, and the conditions yielding the best QF determined.

    Item Type: Article
    Uncontrolled Keywords: LIBS, response surface methodology, silicon, optimization, hardware
    Themes: Subjects / Themes > Q Science > QC Physics
    Subjects outside of the University Themes
    Schools: Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre
    Colleges and Schools > College of Science & Technology
    Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering
    Journal or Publication Title: Spectrochimica Acta Part B: Atomic Spectroscopy
    Publisher: Elsevier
    Refereed: Yes
    ISSN: 05848547
    Related URLs:
    Depositing User: H Kenna
    Date Deposited: 19 Oct 2007 12:30
    Last Modified: 20 Aug 2013 16:47
    URI: http://usir.salford.ac.uk/id/eprint/404

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