TY - CONF A1 - Hahn, Oliver T1 - Archäometrie contra Restaurierung - die Beduetung der Naturwissenschaften bei der Entscharfung eines Konfliktes T2 - Jahrestagung Archäometrie und Landesamt für Denkmalpflege T2 - Jahrestagung Archäometrie und Landesamt für Denkmalpflege CY - Mainz, Deutschland DA - 2015-03-25 PY - 2015 AN - OPUS4-32911 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver A1 - Goedicke, Ch. A1 - Fuchs, R. A1 - Horn, I. T1 - Archäometrie und Denkmalpflege 2003 T2 - Archäometrie und Denkmalpflege, Kurzberichte 2003, Staatliche Museen zu Berlin T2 - Archäometrie und Denkmalpflege, Kurzberichte 2003, Staatliche Museen zu Berlin CY - Berlin, Germany DA - 2003-03-12 PY - 2003 AN - OPUS4-3305 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver T1 - Biozide in der Museumsluft - Analytik, Interpretation und Bewertung T2 - Extrakt des 6. N.i.Ke.-Workshops am DHM T2 - Extrakt des 6. N.i.Ke.-Workshops am DHM CY - Berlin, Germany DA - 2013-06-11 PY - 2013 AN - OPUS4-30113 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ketelsen, T. A1 - Hahn, Oliver A1 - Golle, U. A1 - Wintermann, C. A1 - Melzer, C. A1 - Dietz, Georg T1 - Blindness and Insight. The Rhetoric of Connoisseurship and the Investigation of Materiality. N2 - The aim of the lecture is to present the productive interplay of connoisseurs and material analysis using the example of selected drawings from the Rembrandt collection of the Klassik Stiftung Weimar. We try to determine the point at which the question of the materiality of the drawings makes sense in the traditional discourse of connoisseurship. On the one hand, this involves the question of authorship – Rembrandt – or not? – and the locating of attributed drawings in the context of the work. On the other hand, it is about making drawing processes visible, characterizing ways of drawing and workshop practices as well as distinguishing different forms of reworking and copying within the Rembrandt workshop. The material analyses culminate in the question of whether Rembrandt’s inks can be distinguished at all. It becomes apparent that the newly gained knowledge about the materiality of the drawing no longer reveals itself to the “mere” view of the connoisseur. Rather, it is only generated by the digital image. The rhetoric of connoisseurs must therefore be contrasted with the necessity of a hermeneutics of the digital image. The envisaged “material turn” of drawing science is thus simultaneously able to take up the critique of the question of authorship, which has been growing ever more recently, and to transfer it to a more comprehensive perspective of aesthetics of production. T2 - Drawings by Rembrandt. Connecting art history, science and conservation CY - Amsterdam, Rijksmuseum, The Netherlands DA - 06.02.2020 KW - Rembrandt KW - Drawings KW - Non-destructive testing KW - Inks KW - Paper PY - 2020 AN - OPUS4-50384 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver A1 - Wintermann, C. A1 - Dietz, Georg A1 - Golle, U. A1 - Ketelsen, T. A1 - Melzer, C. T1 - Braune Tinten – Geschichte und Materialität N2 - Eine Vielzahl unterschiedlicher Materialien findet für die Gestaltung von Zeichnungen Verwendung. So sind es insbesondere „braune Tinten“, welche die Zeichnungen dominieren. Der Vortrag möchte zunächst einen kurzen Überblick über die Terminologie und die Kunsttechnologie farbiger Tinten geben, um den Kosmos dieser Vielfältigkeit und auch deren Vergänglichkeit zu illustrieren. Der zweite Teil des Vortrags ist dann den sogenannten Bistertinten und deren analytischen Nachweisen gewidmet. Es handelt sich um Zeichentinten, die aus den wasserlöslichen Bestandteilen von Kaminruß gewonnen werden. Die farbliche Bandbreite reicht von gelb-orange bis braun. Zuweilen wurden diese Tinten mit weiteren Pigmenten versetzt, um eine bestimmte Farbtiefe zu erzielen. T2 - 29. Treffen der Grafikrestauratoren CY - Weimar, Germany DA - 25.10.2019 KW - Zerstörungsfreie Prüfung KW - Zeichenmaterialien KW - Archäometrie PY - 2019 AN - OPUS4-49731 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cohen, Zina A1 - Schlanger, J. A1 - Hahn, Oliver A1 - Rabin, Ira T1 - Cairo Genizah documents of the 11th century: analysis of writing materials N2 - The Cairo Geniza is an “archive” discovered in the 19th century in Ben Ezra Synagogue in Fustat, a district in Old Cairo (Egypt). The collection of mostly Jewish documents that vary in genres, languages and writing supports contains a large number of early medieval Hebrew manuscripts. The Geniza provides sources for the literary, linguistic, historical studies of the various aspects Jewish life. As the documents attest, at least two Jewish communities co-existed in Fustat up to 11th century: a so-called Babylonian and Palestinian. These communities had different leaders, different traditions and lived independently. The differences seem to manifest themselves also in the paleographical, codicological and some material properties of the manuscripts produced by each community. The aim of this project is to compare the inks used in the Jewish documents depending on different variables: support (paper, parchment), purpose of the manuscript (legal, private, religious), provenance of the scribe. For the determination of the inks type and composition we had to choose non-invasive, non-destructive and portable techniques to analyze the corpus directly on-situ. The analyses were carried out with a micro-X-ray spectrometer ArtTAX® (Bruker GmbH) and a digital stereomicroscope features built-in LED illumination at 395 nm and 940nm, Dino Lite. We would like to stress that though the methods of material analysis listed above have been successfully employed in the field of cultural heritage and conservation including ancient and medieval manuscripts they have not yet been used to study fragments from the Cairo Genizah. Therefore, we believe that this research project is a pioneering study that will provide new insights into the history of Hebrew writing materials, their production techniques and materials and, thus, contribute new data to the field of Hebrew paleography. T2 - Konferenz Art&Archaeology2018 – 3rd International Conference CY - Jerusalem, Israel DA - 09.12.2018 KW - XRF KW - Ink KW - Manuscripts KW - Cairo Genizah KW - Reflectography PY - 2018 AN - OPUS4-47100 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wolff, Timo A1 - Hahn, Oliver A1 - Malzer, W. A1 - Waldschläger, U. A1 - Kanngießer, B. T1 - Characterisation of microspot excitation for quantitation in X-ray fluorescence analysis with X-ray tubes T2 - EXRS 2006 T2 - EXRS 2006 CY - Paris, France DA - 2006-06-19 PY - 2006 AN - OPUS4-13236 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver A1 - Malzer, W. A1 - Kanngießer, B. T1 - Characterization of iron gall inks in historical manuscripts and music compositions using X-ray fluorescence spectrometry T2 - art 2002 - 7th International Conference on Non-destructive Testing and Microanalysis for the Diagnostics and Conservation of the Cultural and Environmental Heritage, Congress Centre Elzenveld T2 - art 2002 - 7th International Conference on Non-destructive Testing and Microanalysis for the Diagnostics and Conservation of the Cultural and Environmental Heritage, Congress Centre Elzenveld CY - Antwerp, Belgium DA - 2002-06-02 PY - 2002 AN - OPUS4-3452 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver A1 - Kanngießer, B. A1 - Malzer, W. T1 - Characterization of Iron Gall Inks in Historical Manuscripts and Music Compositions using X-Ray Fluorescence Spectrometry T2 - 7th International Conference on Non-Destructive Testing and Microanalysis for the Diagnostics and Conservation of the Cultural and Environmental Heritage, art2002 T2 - 7th International Conference on Non-Destructive Testing and Microanalysis for the Diagnostics and Conservation of the Cultural and Environmental Heritage, art2002 CY - Antwerp, Belgium DA - 2002-06-03 PY - 2002 AN - OPUS4-5865 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Hahn, Oliver A1 - Malzer, W. A1 - Kanngießer, B. A1 - Beckhoff, B. A1 - Waldschläger, U. T1 - Characterization of Iron Gall Inks in Historical Manuscripts and Music Compositions using X-Ray Fluorescence Spectrometry T2 - Spectrometry EDXRS 2002, Book of abstracts of the European Conference on Energy Dispersive X-Ray T2 - Spectrometry EDXRS 2002, Book of abstracts of the European Conference on Energy Dispersive X-Ray CY - Berlin, Germany DA - 2002-06-16 PY - 2002 AN - OPUS4-5866 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -