Didaktik 2009 – scientific programme

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DD: Fachverband Didaktik der Physik

DD 30: Postersitzung

DD 30.41: Poster

Wednesday, March 18, 2009, 14:00–16:30, Poster Saal 2

Educational X-ray experiments and XRF measurements with a modified, mobile system adapted for characterization of Cultural Heritage objects — •Ioannis Sianoudis¹, Eleni Drakaki², and Anno Hein³ — ¹Technological Educational Institute (TEI) of Athens, Dep. of Physics Chemistry & Material Technology, Ag. Spyridonos, 12210 Egaleo, Greece, jansian@teiath.gr — ²Physics Dep., NTUA, Athens, 15780, Greece, edrakaki@gmail.com — ³Institute of Materials Science, N.C.S.R. Demokritos, 15 310 Aghia Paraskevi, Greece, hein@ims.demokritos.gr

It is common to use valuable, sophisticated equipment, that has been acquired for other use, to be modified, adapted and developed for the needs of additional educational experiments, with greater didactic effectuality. We have developed a system, composed of parts from a portable system for XRF spectroscopy, aiming at: i) the formation of familiar and conventional laboratory exercises, like the verification of Moseley's law, Compton's law and Lambert-Beer's law; ii) the calibration with reference materials of the XRF experimental system, to be applied for accurate measurements of the elemental composition of objects of cultural interest. After the calibration of the experimental setup, indicative measurements of metal objects are shown, in order to discuss their spectra and their qualitative and quantitative analysis. The system and the applied experiments are designed as an educational package of laboratory exercises for students in physical sciences and especially adapted for the education of students who will work with Cultural Heritage, such as conservation scientists and archaeometrists.