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 - JOUR A1 - Dudek, Gabriele A1 - Alber, D. A1 - Pritzkow, Wolfgang A1 - Riebe, Gundel A1 - Vogl, Jochen A1 - Görner, Wolf T1 - Determination of the beta- branching ratio of 64Cu by mass spectrometric investigations of the decay products in neutron transmuted copper N2 - The ?- branching ratio of 64Cu was determined by investigating the resulting decay products in copper doped by neutron transmutation. The numbers of 64Zn and 64Ni atoms were analyzed using isotope dilution analysis combined with thermal ionization mass spectrometry. A ?- branching ratio of (38.06±0.30)% was obtained, which agrees with the study of Kawada (Appl. Radiat. Isot. 37 (1) (1986) 7) to a higher accuracy. However, our result differs from the value cited in the NUDAT database of (39.0±0.3)%. KW - NTD KW - Copper KW - Zinc KW - Nickel KW - Branching ratio KW - Cu-64 KW - TIMS KW - IDMS KW - Isotope dilution KW - Thermal ionization mass spectrometry KW - Neutron transmutation doping PY - 2002 U6 - https://doi.org/10.1016/S0969-8043(01)00180-4 SN - 0883-2889 SN - 0969-8043 N1 - Geburtsname von Dudek, Gabriele: Wermann, G. - Birth name of Dudek, Gabriele: Wermann, G. VL - 56 SP - 145 EP - 151 PB - Elsevier CY - Amsterdam AN - OPUS4-7221 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dudek, Gabriele A1 - Görner, Wolf A1 - Gawlik, D. A1 - Alber, D. T1 - Use of neutron transmutation doping for the preparation of a new candidate reference material for zinc determination in metallic copper N2 - A new application of neutron transmutation doping is described. The method is useful to prepare graded zinc contents in highly pure copper materials. The research reactor BER II at the Hahn-Meitner-Institute, Berlin served as a neutron source. The zinc content produced in the samples was analyzed by determining the 65Zn-activity via gamma-spectrometry. Simultaneously irradiated flux monitors were used to determine the neutron flux density. Since cylindrical sample geometries are favorable for a reference material application in optical emission (OE) spectroscopy, the spatial distribution of the induced activity in a cylinder with a diameter of 8 mm and a length of 35 mm was investigated. PY - 2000 U6 - https://doi.org/10.1023/A:1006723718395 SN - 0236-5731 SN - 1588-2780 SN - 1417-2097 N1 - Geburtsname von Dudek, Gabriele: Wermann, G. - Birth name of Dudek, Gabriele: Wermann, G. VL - 245 IS - 1 SP - 87 EP - 90 PB - Elsevier Sequoia CY - Lausanne AN - OPUS4-11230 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dudek, Gabriele A1 - Pritzkow, Wolfgang A1 - Riebe, Gundel A1 - Görner, Wolf A1 - Alber, D. T1 - Characterization of neutron transmuted zinc traces in pure copper materials by isotope dilution mass spectrometry N2 - The neutron transmutation doping (NTD) of highly pure copper with zinc was investigated as a promising means of achieving controlled gradation of the zinc content in the range 1-20 wg g-1. The doping process leads to the enrichment of two stable isotopes 64Zn and 66Zn in a ratio which differs from that of natural isotopic distribution. Mass spectrometric investigations by thermal ionization mass spectrometry (TIMS) were performed to validate the results obtained by gamma spectrometry. The investigations included both determination of the isotopic ratios of the doped zinc isotopes and the analysis of the accumulated zinc contents by isotope dilution (ID) analysis. Thereby a sample-specific correction of the blank could be performed because the isotope 68Zn was not influenced, because of the transmutation process. The results obtained by TIMS prove the strict proportionality of the doped zinc content, in the range 5 to 20 wg g-1, to the neutron fluence. Comparison with gamma spectrometric results showed a very good agreement within the uncertainties. PY - 2001 U6 - https://doi.org/10.1007/s002160100784 SN - 0937-0633 N1 - Geburtsname von Dudek, Gabriele: Wermann, G. - Birth name of Dudek, Gabriele: Wermann, G. VL - 370 IS - 5 SP - 606 EP - 611 PB - Springer CY - Berlin AN - OPUS4-1145 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Görner, Wolf A1 - Berger, Achim A1 - Haase, Oskar A1 - Segebade, Christian A1 - Alber, D. T1 - BEAMGAA - An instrumentall answer to the demand of high accuracy T2 - MARC VI CY - Kailua, HI, USA DA - 2003-04-07 PY - 2003 AN - OPUS4-3780 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Görner, Wolf A1 - Berger, Achim A1 - Haase, Oskar A1 - Segebade, Christian A1 - Alber, D. T1 - BEAMGAA - A change for high precision analysis of big samples T2 - GDCh - Jahrestagung Chemie 2003, 19. Seminar Aktivierungsanalyse CY - Munich, Germany DA - 2003-10-06 PY - 2003 AN - OPUS4-3790 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -