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Correlation Photoacoustic Measurement by Excitation with Synchrotron Radiation

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Abstract

Correlation photoacoustic spectroscopy was carried out in X-ray region using synchrotron radiation(SR) as an exciting source. Thermal diffusion in copper foils and in laminated samples was investigated. The characteristic rise and fall times of correlation spectra, τ0 and τf respectively, were found to be influenced by sample thickness with the maximum values at intermediate thicknesses (10 and 50 μm) for copper samples. This was interpreted as arising from the competing effect between the thermal diffusion within the sample and the thermal radiation from the sample surface. For the laminated samples, increases of τ0 and τf were observed with the increase of thickness of polymer layer on the copper substrate.

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Authors and Affiliations

  1. National Chemical Laboratory for Industry, Tsukuba, Ibaraki, 305, Japan

    Kenji Kato

  2. Department of Chemistry, The University of Tsukuba, Tsukuba, Ibaraki, 305, Japan

    Yoshinori Sugitani

Authors
  1. Kenji Kato
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  2. Yoshinori Sugitani
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Kato, K., Sugitani, Y. Correlation Photoacoustic Measurement by Excitation with Synchrotron Radiation. ANAL. SCI. 4, 59–62 (1988). https://doi.org/10.2116/analsci.4.59

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  • DOI: https://doi.org/10.2116/analsci.4.59

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