Discovering Vanished Paints and Naturally Formed Gold Nanoparticles on 2800 Years Old Phoenician Ivories Using SR-FF-MicroXRF with the Color X-ray Camera

摘要: Phoenician ivory objects (8th century B.C., Syria) from the collections of Badisches Landesmuseum, Karlsruhe, Germany, have been studied with full field X-ray fluorescence microimaging, using synchrotron radiation (SR-FF-microXRF). The innovative Color Camera (CXC), a full-field detection device (SLcam), was used at beamline ANKA facility (ANKA-FLUO, KIT, Germany) to noninvasively study trace metal distributions surface archeological objects. outstanding strength imaging technique CXC is capability record XRF spectrum spatial resolution 48 μm on zone size 11.9 × 12.3 mm2 (264 264 pixels). For each analyzed region, 69696 spectra were simultaneously recorded. principal elements detected are P, Ca, and Sr, coming material itself; Cu, characteristic pigments; Fe Pb, representing sediments or Mn, revealing deposited soil minerals; Ti, i...