TY - JOUR A1 - Kanngießer, B. A1 - Mantouvalou, I. A1 - Malzer, W. A1 - Wolff, Timo A1 - Hahn, Oliver T1 - Non-destructive, depth resolved investigation of corrosion layers of historical glass objects by 3D Micro X-ray fluorescence analysis N2 - 3D Micro X-ray fluorescence analysis was used for the investigation of reverse-glass paintings. The material-specific combination used in reverse-glass paintings leads to damage phenomena reinforced by glass corrosion. To elucidate the mechanism of corrosion processes taking place in the glass object depth profiles of mobile elements are of interest. In order to obtain elemental depth profiles of such kind of fragile objects the method of choice should be non-destructive. Our first results demonstrate the usefulness of the 3D Micro-XRF measurements for this kind of investigations. The assumption that certain binding media may initiate corrosion processes beginning at the interface glass/binding material could be confirmed. KW - Cultural heritage KW - 3D-micro XRF KW - Glass corrosion KW - Quantification PY - 2008 U6 - https://doi.org/10.1039/b717286a SN - 0267-9477 SN - 1364-5544 VL - 23 SP - 814 EP - 819 PB - Royal Society of Chemistry CY - London AN - OPUS4-17544 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver A1 - Rabin, Ira A1 - Wolff, Timo A1 - Kanngießer, B. A1 - Malzer, W. A1 - Mantouvalou, I. A1 - Schade, U. A1 - Masic, Admir A1 - Weinberg, G. T1 - Non-destructive investigation of the dead sea scrolls N2 - The Dead Sea Scrolls belong to the most important cultural assets of mankind. Their long term preservation and study is a challenge that demands an interdisciplinary approach. As early as the 1950s natural scientists assisted the scholars in studying the scrolls. It was at this time that the first extensive study of the scroll material took place. It was found that most fragments were written not on leather but on parchment. In addition, a method for determining the age of the parchment was developed which is still of value today. In the 1990s the AMS-C14 method confirmed the palaeographic determination of the age of the manuscripts. The use of carbon ink throughout the scrolls is also consistent with the known scribal practices of that time. There are, however, manuscripts, and among them the famous Genesis Apocryphon Scroll, which exhibit ink corrosion, normally associated with iron-gall inks. Today, 60 years after their discovery, a community of scientists from the Jewish National and University Library (JNUL), the Technical University of Berlin (TU Berlin), the Federal Institute for Materials Research and Testing (BAM) and Fritz-Haber-Institute of the MPG (FHI) set out to scientifically investigate the finds of Qumran using the most modern methods. The results of the study will be used to determine the provenance of the texts as well as to contribute to their long-term preservation. A considerable part of the non-destructive investigation is taking place in the Berlin State Library and at the Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung , BESSY II. Preliminary investigations, performed at the BAM on some fragments, were used to evaluate the extent to which X-ray analytical methods can provide information regarding the geographical origin of the fragments and match the individual pieces. The interpretation of the measurement results is made more difficult by age and storage of the objects. It is believed that ageing processes as well as conservation methods have altered the samples in addition to the changes caused by environmental influences. In collaboration with the TU Berlin, the samples from the parchments found in the caves near Qumran were tested by means of three-dimensional synchrotron based X-ray fluorescence analysis (3D-SyXRF). The aim of this non-destructive investigation was the identification of the inorganic material used in the manufacture of the parchments. The XRF experiments are supported by the non-destructive analysis by means of synchrotron based infrared spectroscopy (SyFTIR) in collaboration with BESSY II as well as optical and electron microscopy in collaboration with Fritz-Haber-Institute (FHI). T2 - Art 2008, 9th International Conference CY - Jerusalem, Israel DA - 2008-05-25 KW - Cultural heritage KW - Archaeometry KW - Micro-XRF KW - Quantification KW - Parchment KW - DSS PY - 2008 IS - CD-ROM SP - 1 EP - 7 PB - ISAS International Seminars CY - Jerusalem, Israel AN - OPUS4-17547 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hahn, Oliver A1 - Wilke, M. A1 - Wolff, Timo T1 - Influence of aqueous calcium phytate/calcium hydrogen carbo-nate treatment on the chemical composition of iron gall inks KW - Archaeometry KW - Restoration KW - Conservation KW - Cultural heritage KW - Iron gall inks PY - 2008 SN - 0034-5806 SN - 1865-8431 VL - 29 SP - 155 EP - 162 PB - Saur CY - München AN - OPUS4-18573 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bjeoumikhov, A. A1 - Erko, M. A1 - Bjeoumikhova, Zemfira A1 - Erko, A. A1 - Snigireva, I. A1 - Snigirev, A. A1 - Wolff, Timo A1 - Mantouvalou, I. A1 - Malzer, W. A1 - Kanngießer, B. T1 - Capillary µFocus X-ray lenses with parabolic and elliptic profile KW - Synchrotron radiation KW - Capillary optics KW - Beamline optics PY - 2008 U6 - https://doi.org/10.1016/j.nima.2008.01.087 SN - 0168-9002 SN - 0167-5087 VL - 587 IS - 2-3 SP - 458 EP - 463 PB - North-Holland CY - Amsterdam AN - OPUS4-18922 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -