TY - GEN A1 - Berger, Achim A1 - Calligaro, T. A1 - Duval, A. A1 - Görner, Wolf A1 - Guerra, M.-F. A1 - Merchel, Silke A1 - Radtke, Martin A1 - Reiche, I. A1 - Riesemeier, Heinrich A1 - Roth, M. T1 - Study of Ag and Au based historical and archaeological objects by high energy Sy-XRF KW - Synchrotron KW - XRF analysis KW - Drawings KW - Archaeometry KW - Gold KW - Röntgenfluoreszenzanalyse KW - RFA KW - Zeichnungen KW - Archäometrie KW - Albrecht Dürer KW - gold PY - 2004 UR - http://www.helmholtz-berlin.de/media/media/oea/web/pr_webseite/druckschriften/berichte/bessy/annualreport2003.pdf#page=544 SN - 0179-4159 SP - 544 EP - 546 PB - Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung CY - Berlin AN - OPUS4-3507 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Berger, Achim A1 - Ecker, Klaus A1 - Görner, Wolf A1 - Merchel, Silke A1 - Procop, Mathias A1 - Radtke, Martin A1 - Riesemeier, Heinrich T1 - X-ray fluorescence analysis at the BAMline PY - 2002 UR - http://www.helmholtz-berlin.de/media/media/oea/web/pr_webseite/druckschriften/berichte/bessy/annualreport2001.pdf#page=253 SN - 0179-4159 SP - 253 EP - 254 PB - Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung CY - Berlin AN - OPUS4-1322 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Procop, Mathias A1 - Radtke, Martin A1 - Riesemeier, Heinrich T1 - SY-XRF in certification of a reference material at the BAMline PY - 2003 UR - http://www.helmholtz-berlin.de/media/media/oea/web/pr_webseite/druckschriften/berichte/bessy/annualreport2002.pdf#page=311 SN - 0179-4159 SP - 311 EP - 312 PB - Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung CY - Berlin AN - OPUS4-2492 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Reiche, I. A1 - Riederer, J. T1 - A closer look at Albrecht Dürer's drawings (1471-1528) PY - 2002 UR - http://www.helmholtz-berlin.de/media/media/oea/web/pr_webseite/druckschriften/infos/bessy/highlights2001.pdf#page=32 SN - 0179-4159 SP - 32 EP - 33 PB - Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung CY - Berlin AN - OPUS4-1323 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Berger, Achim A1 - Görner, Wolf A1 - Merchel, Silke A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Reiche, I. A1 - Riederer, J. T1 - Non-destructive investigations of Dürer's silver point drawings by Sy-XRF PY - 2002 UR - http://www.helmholtz-berlin.de/media/media/oea/web/pr_webseite/druckschriften/berichte/bessy/annualreport2001.pdf#page=292 SN - 0179-4159 SP - 292 EP - 293 PB - Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung CY - Berlin AN - OPUS4-1324 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Görner, Wolf A1 - Berger, Achim A1 - Merchel, Silke A1 - Pernicka, E. A1 - Radtke, Martin A1 - Reiche, I. A1 - Reinholz, Uwe A1 - Riederer, J. A1 - Riesemeier, Heinrich A1 - Wunderlich, C. H. T1 - Kunst- und Kulturgüter unter "Beschuss" T2 - Jahrestagung Zerstörungsfreie Materialprüfung 2004 CY - Salzburg, Österreich DA - 2004-05-17 KW - SY-RFA KW - PIXE KW - PIGE KW - PAA KW - Zerstörungsfreie Analyse KW - Silberstiftzeichnungen KW - Himmelsscheibe von Nebra KW - Indische Moghulmalereien PY - 2004 UR - http://www.ndt.net/article/dgzfp04/papers/p46/p46.htm SN - 3-931381-55-2 SP - 1(?) EP - 11(?) PB - DGZfP CY - Berlin AN - OPUS4-6897 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Merchel, Silke A1 - Berger, Achim T1 - Determination of nitrogen in boron carbide by instrumental photon activation analysis N2 - Boron carbide is widely used as industrial material, because of its extreme hardness, and as a neutron absorber. As part of a round-robin exercise leading to certification of a new reference material (ERM-ED102) which was demanded by the industry we analysed nitrogen in boron carbide by inert gas fusion analysis (GFA) and instrumental photon activation analysis (IPAA) using the 14N(γ,n)13N nuclear reaction. The latter approach is the only non-destructive method among all the methods applied. By using photons with energy below the threshold of the 12C(γ,n)11C reaction, we hindered activation of matrix and other impurities. A recently installed beam with a very low lateral activating flux gradient enabled us to homogeneously activate sample masses of approximately 1 g. Taking extra precautions, i.e. self-absorption correction and deconvolution of the complex decay curves, we calculated a nitrogen concentration of 2260 ± 100 µg g-1, which is in good agreement with our GFA value of 2303 ± 64 µg g-1. The values are the second and third highest of a rather atypical (non-S-shape) distribution of data of 14 round-robin participants. It is of utmost importance for the certification process that our IPAA value is the only one not produced by inert gas fusion analysis and, therefore, the only one which is not affected by a possible incomplete release of nitrogen from high-melting boron carbide. KW - Nitrogen KW - Reference materials KW - Gas fusion analysis KW - Photon activation analysis PY - 2007 U6 - https://doi.org/10.1007/s00216-007-1217-z SN - 1618-2642 SN - 1618-2650 VL - 388 IS - 2 SP - 385 EP - 389 PB - Springer CY - Berlin AN - OPUS4-16149 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Merchel, Silke A1 - Berger, Achim A1 - Görner, Wolf A1 - Radtke, Martin A1 - Reinholz, Uwe A1 - Riesemeier, Heinrich A1 - Vogl, Jochen A1 - Frisch, A. A1 - Reiche, I. T1 - Kunst- und Kulturgüter unter "Beschuss" T2 - GDCh-Jahrestagung Chemie 2003 ; Jahrestagung der Fachgruppe Nuklearchemie ; 19. Seminar Aktivierungsanalyse CY - München, Deutschland DA - 2003-10-06 PY - 2003 SN - 3-936028-14-1 N1 - Serientitel: Kurzreferate / GDCh-Jahrestagung Chemie 2003 – Series title: Kurzreferate / GDCh-Jahrestagung Chemie 2003 IS - 5 SP - 68 PB - Gesellschaft Deutscher Chemiker CY - Frankfurt am Main AN - OPUS4-2686 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Merchel, Silke A1 - Berger, Achim A1 - Görner, Wolf A1 - Radtke, Martin A1 - Riesemeier, Heinrich A1 - Reiche, I. A1 - Riederer, J. A1 - Duval, A. A1 - Guicharnaud, H. T1 - Non-Destructive Investigations of Dürer's Silver Point Drawings by Pixe and SY-XRF T2 - 7th International Conference on Non-destructive testing and Microanalysis for the Diagnostics and Conservation of the Cultural and Environmental Heritage ; art 2002 CY - Antwerp, Belgium DA - 2002-06-02 PY - 2002 UR - http://srs.dl.ac.uk/arch/publications/reiche/reiche_fullcorr.pdf SP - 82 AN - OPUS4-1400 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Radtke, Martin A1 - Berger, Achim A1 - Ecker, Klaus A1 - Merchel, Silke A1 - Procop, Mathias A1 - Riesemeier, Heinrich A1 - Görner, Wolf A1 - Reiche, I. T1 - Synchrotron induced X-ray fluorescence for trace element analysis T2 - Hamburg Workshop CY - Hamburg, Germany DA - 2002-09-16 PY - 2002 SN - 3-924330-53-0 SP - 1(?) PB - Gesellschaft Deutscher Chemiker AN - OPUS4-1525 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -