Speaker
Prof.
Kouichi Tsuji
(Osaka City University)
Description
Kouichi Tsuji, Shota Aida, and Yuki Takimoto
Graduate School of Engineering, Osaka City University (OCU),
3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
A non-destructive elemental imaging is important for environmental, forensic, and material sciences. We will introduce a few approaches for x-ray elemental and chemical imaging in the laboratory at OCU.
The drawback of the scanning type XRF imaging would be a long acquisition time. Thus, a projection type XRF imaging has been studied. In my laboratory, we have developed WD-XRF imaging spectrometer using WDS spectrometer, a straight polycapillary optics, and x-ray CCD camera [1,2]. The advantage of WD-XRS is a high energy-resolution, approximately 40 eV [2]. Recently, we applied this technique for observation of corrosion process of metals in the acid solution.
In addition, we have studied full-field energy-dispersive type XRF (FF-ED-XRF) imaging spectrometer by taking useful advices from Dr. Romano [3]. In my presentation, the comparison of these XRF imaging techniques will be discussed. In all the cases, the straight type polycapillary optics play an important role for taking the XRF 1 : 1 images.
References
1. K. Tsuji, T. Ohmori, M. Yamaguchi, Wavelength Dispersive X-ray Fluorescence Imaging, Anal. Chem., 83 (2011) 6389-6394.
2. K. Tsuji, et al., Spectrochim. Acta Part B, 113 (2015) 43-53.
3. F.P. Romano, C. Caliri, L. Cosentino, S. Gammino, L. Giuntini, D. Mascali, L. Neri, L. Pappalardo, F. Rizzo and F. Taccetti, Anal. Chem, 86, (2014) 10892-10899.
Primary author
Prof.
Kouichi Tsuji
(Osaka City University)
