TY - JOUR A1 - Görner, Wolf A1 - Haase, Oskar A1 - Ostermann, Markus A1 - Segebade, Christian T1 - Instrumental analysis of phosphorus in organic material using high energy beta-counting after photoactivation (IPAA) N2 - C, N, O, F and P can be analyzed by instrumental photon activation analysis (IPAA) including decay curve analysis. The interference of 30P (T1/2 = 149.9 s) by 15O (T1/2 = 122.2 s) can be ruled out by direct positron measurement making use of the largely different maximum β+-energies of both nuclides (3.24 MeV and 1.73 MeV, respectively). Interference by carbon (11C) can be avoided by sub-threshold activation with 17 MeV bremsstrahlung. The short half-life of 30P allows a high productivity of the method. Reliability was demonstrated in the range of 0.2%–2% P (detection limit = 40 µg/g). Analysis of a certified reference material (BCR-CRM 063) yielded excellent agreement with the certified data. KW - Instrumental analysis KW - Phosphorus KW - Photon activation PY - 2008 DO - https://doi.org/10.1007/s10967-007-0441-5 SN - 0236-5731 SN - 1588-2780 SN - 1417-2097 VL - 276 IS - 1 SP - 251 EP - 255 PB - Elsevier Sequoia CY - Lausanne AN - OPUS4-19157 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Görner, Wolf T1 - Trance element fingerprints of coffee samples of different origin T2 - 11th International Conference on Modern Trends in Activation Analysis; University of Surrey CY - Guildford, England DA - 2004-06-20 PY - 2004 AN - OPUS4-6270 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Görner, Wolf A1 - Alber, D. A1 - Berger, Achim A1 - Haase, Oskar A1 - Monse, G. A1 - Segebade, Christian T1 - BEAMGAA - A chance for high precision analysis of big samples N2 - In activation analysis of traces in small samples, the non-equivalence of the activating radiation doses of sample and calibration material gives rise to sometimes tolerable systematic errors. Conversely, analysis of major components usually demands high trueness and precision. To meet this, beam geometry activation analysis (BEAMGAA) procedures have been developed for instrumental photon (IPAA) and neutron activation analysis (INAA) in which the activating neutron/photon beam exhibits broad, flat-topped characteristics. This results in a very low lateral activating flux gradient compared to known radiation facilities, however, at significantly lower flux density. The axial flux gradient can be accounted for by a monitor-sample-monitor assembly. As a first approach, major components were determined in high purity substances as well as selenium in a cattle fodder additive. T2 - 6th International Conference "Methods and Applications of Radioanalytical Chemistry" CY - Kailua-Kona, HI, United States of America DA - 2003-04-07 KW - Beam geometry activation analysis KW - Flux gradients KW - Measurement regime KW - Representativity KW - Big samples PY - 2005 DO - https://doi.org/10.1007/s10967-005-0660-6 SN - 0236-5731 SN - 1588-2780 SN - 1417-2097 VL - 263 IS - 3 SP - 791 EP - 796 PB - Elsevier Sequoia CY - Lausanne AN - OPUS4-6907 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Görner, Wolf A1 - Reinholz, Uwe T1 - Wasserstoffanalytik mit hochenergetischen Ionen KW - Wasserstoff KW - Ionenstrahlanalytik KW - Kernreaktionsanalyse PY - 2005 UR - http://archiv.aktuelle-wochenschau.de/2005/woche15/woche15.html IS - 15 SP - 1 EP - 11 PB - Gesellschaft Deutscher Chemiker CY - Frankfurt am Main AN - OPUS4-7324 LA - deu 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 DO - 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 - Görner, Wolf A1 - Merchel, Silke T1 - 20. Seminar Aktivierungsanalyse KW - Neutronenaktivierungsanalyse KW - Photonenaktivierungsanalyse KW - NAA KW - PAA KW - Reaktor KW - Spurenelemente PY - 2005 SN - 0939-0065 IS - 2 SP - 29 EP - 30 PB - Gesellschaft Deutscher Chemiker CY - Frankfurt, M. AN - OPUS4-7598 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Görner, Wolf T1 - BEAMGAA - A chance for high precision analysis of big samples T2 - 6th Int. Conf. Methods and Application of Radioanalytical Chemistry Journal of Radioanalytical and Nuclear Chemistry, Vol 263, No. 3 (2005) 791-796), ISSN 0236-5731 CY - Kailua, HI, USA DA - 2003-04-07 PY - 2003 AN - OPUS4-7718 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Görner, Wolf 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 T1 - Neue analytische Möglichkeiten mittels Synchrotronstrahlung - die BAM-line bei BESSY 2 T2 - IFW - Kolloquium CY - Dresden, Germany DA - 2003-05-13 PY - 2003 AN - OPUS4-3781 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Görner, Wolf 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 -