Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

"Online First" included
Without submitted and only approved publications
Only approved publications

32337 Publications
Complexation of Uranyl(VI) by Humic Substances in Absence and Presence of Sulfate
Schmeide, K.; Geipel, G.; Zänker, H.; Heise, K.-H.; Nitsche, H.;
  • Lecture (Conference)
    EC Project Meeting, Centre d´Etudes de Saclay Paris, France, 11.-12.05.1998

Publ.-Id: 2779 - Permalink


Photolysis of silicic acid and new particle formation
Rettig, D.; Merker, P.; Nitsche, H.;
  • Lecture (Conference)
    5th International Aerosol Conference Edinburgh, Scottland, 12.-18.09.1998

Publ.-Id: 2778 - Permalink


Speziationsbestimmung von Uran in umweltrelevanten Systemen mittels Röntgenabsorptionsspektroskopie
Reich, T.;
  • Lecture (Conference)
    Universität Leipzig, Fakultät für Chemie und Mineralogie Leipzig, Germany, 19.10.1998

Publ.-Id: 2777 - Permalink


Synchrotronstrahlungsuntersuchungen an Radionuklidsystemen
Reich, T.;
  • Lecture (Conference)
    GDCh-Fachtagung, FG Nuklearchemie Dresden, Germany, 07.-09.09.1998

Publ.-Id: 2776 - Permalink


X-ray Absorption Fine Structure Studies of Uranium in Environmental Systems
Reich, T.;
  • Lecture (Conference)
    Lawrence Berkeley National Laboratory Berkeley, CA, USA, 19.05. 1998

Publ.-Id: 2775 - Permalink


Application of X-ray Absorption Spectroscopy in Radioecology
Reich, T.; Bernhard, G.; Nitsche, H.;
  • Lecture (Conference)
    13th Radiochemical Conference Mariánské Lázne, Czech Republic, 19.-24.04.1998

Publ.-Id: 2774 - Permalink


Anwendung der Röntgenabsorptionsspektroskopie in der Radioökologie
Reich, T.;
  • Lecture (Conference)
    Zentrumsseminar "Anwendung der Synchrotronstrahlung" Forschungszentrum Rossendorf e.V., Rossendorf, Germany, 08. 01. 1998

Publ.-Id: 2773 - Permalink


Metal cluster formation on bacterial surface layer proteins
Pompe, W.; Mertig, M.; Kirsch, R.; Raff, J.; Selenska-Pobell, S.;
  • Lecture (Conference)
    Euroconference: Bacterial-Metal/Radionuclide Interaction Rossendorf/Dresden, Germany, 02.-04.12.1998

Publ.-Id: 2772 - Permalink


Einfluß von Huminstoffen auf das Migrationsverhalten radioaktiver und nichtradioaktiver Schadstoffe unter naturnahen Bedingungen. (IFR-Teilbericht zum BMBF-Verbundprojekt-Abschluß)
Pompe, S.; Heise, K.-H.; Bernhard, G.; Nitsche, H.;
  • Lecture (Conference)
    BMBF-Projektmeeting, FZ Karlsruhe Karlsruhe, Germany, 22.-23.10.1998

Publ.-Id: 2771 - Permalink


Erste Ergebnisse aus Säulenexperimenten zur Untersuchung des Migrationsverhaltens von Uran(VI) im System GoHy-532 / Gorlebensand
Pompe, S.; Artinger, R.;
  • Lecture (Conference)
    BMBF-Projektmeeting Universität Mainz, Institut für Kernchemie Mainz, Germany, 12.03.1998

Publ.-Id: 2769 - Permalink


Characterization of a Sulfate-Reducing Bacterium which is able to Reduce Uranium
Pietzsch, K.; Panak, P.; Hard, B. C.; Babel, W.;
  • Lecture (Conference)
    Uranium Mining and Hydrogeology II Freiberg,Germany, 15.-17.09.1998

Publ.-Id: 2768 - Permalink


Bacteria from uranium mining waste piles: Complex formation of Thiobacillus ferrooxidans with U(VI)
Panak, P.;
  • Lecture (Conference)
    Uranium Mining and Hydrogeology II Freiberg, Germany, 15.-17.09.1998

Publ.-Id: 2767 - Permalink


Environmental Nuclear Chemistry: Uranium Speciation by Laser Fluorescence and X-ray Absorption Spectroscopy
Nitsche, H.;
  • Lecture (Conference)
    European Synchrotron Radiation Facility (ESRF) Grenoble, France, Oct. 1998

Publ.-Id: 2766 - Permalink


Application of Synchrotron Radiation Techniques to Radionuclide Studies
Nitsche, H.; Reich, T.; Hennig, C.; Roßberg, A.; Geipel, G.; Denecke, M. A.; Baraniak, L.; Panak, P.; Abraham, A.; Mack, B.; Selenska-Pobell, S.; Bernhard, G.;
  • Lecture (Conference)
    Euroconference and NEA Workshop: Actinide-XAS-98 Grenoble, France, 04.-06.10.1998
  • Contribution to proceedings
    Speciation, Techniques and Facilities for Radioactive Materials at Synchrotron Light Sources pp. 15-27 (OECD Publications 2, Paris Cedex, France) Workshop Proceedings Grenoble, France, 4-6 October 1998

Publ.-Id: 2764 - Permalink


Radionuclide Migration and Transport in the Vadose Zone: R&D Needs in Measurements and Modelling
Nitsche, H.; Brendler, V.;
  • Lecture (Conference)
    Fourth Intern. Symposium and Exhibition on Environmental Contamination in Central and Eastern Europ, Warsaw, Poland, 15.-17.09.1998

Publ.-Id: 2763 - Permalink


Data transferability into numerical models and sources of uncertainty
Nitsche, H.;
  • Lecture (Conference)
    EC-Cluster Workshop "Radionuclide Transport/Retardation Processes" Brussels, Belgium, 19.-20.03.1998

Publ.-Id: 2762 - Permalink


Molecular characterization of several Thiobacillus ferrooxidans strains recovered from an uranium mine waste pile in Germany
Kutschke, S.; Groudeva, V.; Selenska-Pobell, S.;
  • Lecture (Conference)
    Euroconference: Bacterial-Metal/Radionuclide Interaction Rossendorf/Dresden, Germany, 02.-04.12.1998

Publ.-Id: 2761 - Permalink


A Monochromator Feedback System
Hennig, C.;
  • Lecture (Conference)
    14th CRG Club Meeting Grenoble, France, 19.-20.10.1998

Publ.-Id: 2760 - Permalink


Synthetic Humic Acids for Radioecological Environmental Research
Heise, K.-H.; Bubner, M.; Pompe, S.; Nitsche, H.;
  • Lecture (Conference)
    Joint European International Isotope Society Conference Bad Soden, Germany, 24.-26.06.1998

Publ.-Id: 2759 - Permalink


Speciation of Uranium - Determination and Calculation under Natural Conditions Uranium Mining and Hydrogeology II
Geipel, G.; Rutsch, M.; Bernhard, G.; Brendler, V.; Nitsche, H.;
  • Lecture (Conference)
    Freiberg, Germany, 15.-17.09.1998

Publ.-Id: 2758 - Permalink


The Radiochemistry Safety System at ROBL
Funke, H.;
  • Lecture (Conference)
    14th CRG Club Meeting Grenoble, France, 19.-20.10.1998

Publ.-Id: 2757 - Permalink


The Radiochemistry Experimental Station at the Rossendorf Beamline (ROBL)
Funke, H.; Reich, T.; Bernhard, G.; Brendler, V.; Claussner, J.; Hüttig, G.; Matz, W.; Neumann, W.; Oehme, W.;
  • Lecture (Conference)
    Euroconference and NEA Workshop: Actinide-XAS-98 Grenoble, France, 04.-06.10.1998

Publ.-Id: 2756 - Permalink


Characterization of the Deformation Field Near the Crack-Tip after Bending by Small Angle X-ray Scattering
Böhmert, J.; Große, M.;
The inhomogeneous deformation field ahead the crack tip of pre-cracked and bended Charpy-V specimens was monitored by scanning with a highly focussed X-ray beam at the Synchrotron Radiation Facility (ESRF). The measured scattering pattern shows two characteristic features:
- streak-like anisotropic scattering with different symmetry
- isotropic scattering.
The streaks are produced by scattering at the grain boundaries. The slope of the Guinier plot of the scattering intensity in the streaks yields an effective scattering thickness of the grain boundary of 1.4 nm. The isotropic scattering intensity can be explained as scattering at the dislocation structure. Its dependence on the scattering vector follows a Porod law with exponents between -3.3 and -2.8. The local distribution of both the integral scattering intensity and the Porod exponent reflect the shape of the plastic zone ahead of the crack tip.
The results demonstrate that small angle X-ray scattering with a scanning microfocussed beam provides a new method to characterize inhomogeneous deformation states with a resolution of few micrometers.
  • Lecture (Conference)
    Conference of the Federation of European Material Societies EUROMAT'99, Sept. 1999, Munich, Microstructural Investigation and Analysis, EUROMAT, Vol. 4, B. Jouffrey and J. Svejcar (Editors), DGM, Weinheim, 2000, pp. 114-120
  • Contribution to proceedings
    Conference of the Federation of European Material Societies EUROMAT'99, Sept. 1999, Munich, Microstructural Investigation and Analysis, EUROMAT, Vol. 4, B. Jouffrey and J. Svejcar (Editors), DGM, Weinheim, 2000, pp. 114-120

Publ.-Id: 2755 - Permalink


Sortion of Uranium (VI) onto schwertmannite
Arnold, T.; Bernhard, G.; Nitsche, H.;
  • Lecture (Conference)
    Europ. Res. Conf. "Geochemistry of Crystal Fluids. Characterization of reactive transport in natural systems"; Aghia Pelaghia, Greece, 22. - 27. 05. 1998

Publ.-Id: 2754 - Permalink


Applications of XAFS Spectroscopy to Specation Problems in Environmental Radiochemistry
Allen, P. G.; Shuh, D. K.; Bucher, J. J.; Edelstein, N. M.; Reich, T.;
  • Lecture (Conference)
    Euroconference and NEA Workshop: Actinide-XAS-98 Grenoble, France, 04.-06.10.1998

Publ.-Id: 2752 - Permalink


Terminal Nitrido Ligands - Lewis Bases for the Coordination Chemist
Abram, U.;
  • Lecture (others)
    University of Graz, Austria, 14.05.1998

Publ.-Id: 2751 - Permalink


Crystal Structure Determination for Everybody
Abram, U.;
  • Lecture (others)
    University of Santiago de Compostela, Spain, 03.02.1998

Publ.-Id: 2750 - Permalink


Synthesis and Stereochemistry of the Spin Adducts of a New Chiral Spin Trap, 3,5-Diphenyl-5-methylpyrroline-1-oxide
Matasyoh, J. C.; Abram, U.; Schuler, P.; Stegmann, H. B.;
  • J. Magnet. Resonance 36, 422 (1998)

Publ.-Id: 2749 - Permalink


XANES Investigation of Chemical States of Nitrogen in Polyaniline
Hennig, C.; Hallmeier, K. H.; Szargan, R.;
  • Synthetic Metals 92/2, 161 (1998)

Publ.-Id: 2748 - Permalink


Die Rolle von Huminsäuren in der Umwelt
Heise, K.-H.; Pompe, S.; Schmeide, K.; Bubner, M.; Nitsche, H.;
  • Contribution to HZDR-Annual report
    Wissenschaftlich-Technische Berichte / Forschungszentrum Rossendorf; Jahresbericht 1997, FZR-240, S. 30-35 (1998)

Publ.-Id: 2747 - Permalink


Darstellung, Strukturen und Photolyse von Rheniumisocyanato-Komplexen
Bonfada, E.; Strähle, J.; Abram, U.;
  • Z. anorg. allg. Chem. 624, 757 (1998)

Publ.-Id: 2746 - Permalink


Synthesis and structures of technetium(I) and rhenium(I) tricarbonyl complexes with bis(diphenylthiophosphoryl)-amide, {M[(Ph2PS)2N](CO)3(CH3CN)} (M = Tc, Re)
Abram, U.; Abram, S.; Schibli, R.; Alberto, R.; Dilworth, J. R.;
  • Polyhedron 17, 1303 (1998)

Publ.-Id: 2745 - Permalink


[NBu4][ReNCl4]: Facile synthesis, structure, electron paramagnetic resonance spectroscopy and reactions
Abram, U.; Braun, M.; Abram, S.; Kirmse, R.; Voigt, A.;
  • J. Chem. Soc. Dalton Trans. 1998, 231

Publ.-Id: 2744 - Permalink


A man-made element’s brilliant career
Abram, U.;
  • Science Spectra 12, 58 (1998)

Publ.-Id: 2743 - Permalink


Computer simulation and RBS/C studies of high dose N+ and Al co-implantation in 6H-SiC
Kharlamov, V. S.; Kulikov, D. V.; Trushin, Y. V.; Yankov, R. A.; Voelskow, M.; Petzoldt, J.; Skorupa, W.;
  • Contribution to external collection
    Proc. SPIE-The Int.Society for Optical Engineering 3345 (1998) 260

Publ.-Id: 2742 - Permalink


Strukturuntersuchungen an Mischkristallen V1-xNbxO2
von Woedtke, F.; Reich, T.; Denecke, M. A.; Nitsche, H.; Oppermann, H.;
  • Lecture (Conference)
    9. Tagung Festkörperanalytik, Chemnitz, Germany, 23.-26.06.1997

Publ.-Id: 2741 - Permalink


Thermoanalytical Investigations on the Oxidizing Degradation of Natural and Synthetic Humic Acids and their Calcium and Uranyl Complexes
Schuster, G.; Bubner, M.; Pompe, S.; Heise, K.-H.; Nitsche, H.;
  • Lecture (Conference)
    12. Ulm-Freiberger Kalorimetrietage, Freiberg, Germany, 19.-21.3.1997

Publ.-Id: 2740 - Permalink


Bacteria from uranium mining waste pile: Interactions with U(VI)
Panak, P.; Hard, B. C.; Pietzsch, K.; Kutschke, S.; Röske, K.; Selenska-Pobell, S.; Bernhard, G.; Nitsche, H.;
  • Lecture (Conference)
    Actinides ‘97, Baden-Baden, Germany, 21.-26.09.1997
  • J. Alloys and Compounds 271-273, 262 (1998)

Publ.-Id: 2739 - Permalink


Complexation of Uranium(VI) with the Siderophore Desferrioxamine B
Czerwinski, K.; Denecke, M. A.; Pompe, S.; Moll, H.; Reich, T.; Nitsche, H.;
  • Lecture (Conference)
    Migration'97, Sendai, Japan, 26.-31.10.1997

Publ.-Id: 2738 - Permalink


ROBL - a CRG Beamline for Radiochemistry and Materials Research at the ESRF
Matz, W.; Schell, N.; Bernhard, G.; Schlenk, R.; Pröhl, D.; Funke, H.; Betzl, M.; Brendler, V.; Claußner, J.; Dienel, S.; Eichhorn, F.; Hüttig, G.; Krug, H.; Neumann, W.; Nitsche, H.; Oehme, W.; Prokert, F.; Reich, T.; Reichel, P.; Strauch, U.; Denecke, M. A.;
  • Lecture (Conference)
    SR50 - Highlights in X-ray Synchrotron Radiation Research, Grenoble, France, Oct. 17 - 20, 1997
  • Journal of Synchrotron Radiation (1999) 6, 1076-1085

Publ.-Id: 2737 - Permalink


Characterization of the Submicron Particles in the Kranichsee Moor Water
Zänker, H.; Hüttig, G.; Richter, W.; Nitsche, H.;
  • Lecture (Conference)
    Second Project Meeting of the EU project "Effects of Humic Substances on the Migration of Radionuclides: Complexation and Transport of Actinides", British Geological Survey, Nottingham, United Kingdom, 13.-14.11.1997

Publ.-Id: 2736 - Permalink


Plasma-source ion implantation compared with glow-discharge plasma nitriding of stainless steel
Günzel, R.;
  • Lecture (others)
    City University of Hong Kong, October 13, 1997

Publ.-Id: 2735 - Permalink


Computersimulationen zur Schichtabscheidung von Bornitrid
Albe, K.;
  • Lecture (others)
    Inst. f. Oberflächen- und Mikrostrukturphysik, TU Dresden, Dresden, Germany, August 1, 1997

Publ.-Id: 2734 - Permalink


Colloid Chemistry of Humic Acid
Zänker, H.;
  • Lecture (Conference)
    First Project Meeting of the FU project "Effects of Humic Substances on the Migration of Radionuclides: Complexation and Transport of Actinides", Forschungszentrum Karlsruhe, Institut f. Nukleare Entsorgungstechnik; Karlsruhe, Germany, 03.-04.03.1997

Publ.-Id: 2733 - Permalink


A combination of atomic and continuum computational models describing the evolution of nanoclusters
Strobel, M.; Heinig, K.-H.; Möller, W.;
  • Lecture (Conference)
    E-MRS Spring Meeting, Strasbourg, France, June 16 - 20, 1997

Publ.-Id: 2732 - Permalink


Faszination Transactinidenforschung
Vahle, A.;
  • Lecture (Conference)
    On the occasion of the awarding of the "Doktorandenpreis der WBL", Köln, Germany, 30.10.1997

Publ.-Id: 2731 - Permalink


Hochtemperaturgaschromatographie mit Spurenmengen der Homologen des Elementes 106 im O2-H2O(g)/SiO2(s) -System
Vahle, A.;
  • Lecture (Conference)
    On the occasion of the awarding of the "Georg-Helm-Preis", TU Dresden, Germany, 08.10.1997

Publ.-Id: 2730 - Permalink


Evidence for relativistic effects in the chemistry of element 104
Türler, A.; Eichler, B.; Gäggeler, H. W.; Hübener, S.; Jost, D. T.; Lebedev, V.; Timokhin, S. N.; Yakushev, A. B.; Zvara, I.;
  • Lecture (Conference)
    Actinides'97, Baden-Baden, Germany, 21.-26.09.1997

Publ.-Id: 2729 - Permalink


X-ray Absorption Fine Structure of Actinides in Concentrated Electrolytes
Shuh, D. K.; Allen, P. G.; Bucher, J. J.; Edelstein, N. M.; Denecke, M. A.; Reich, T.; Nitsche, H.;
  • Lecture (Conference)
    Actinides'97, Baden-Baden, Germany, 21.-26.09.1997

Publ.-Id: 2728 - Permalink


Anwendung von XAFS-Spektroskopie in der Radioökologie
Reich, T.;
  • Lecture (others)
    Institut für Experimentalphysik II, Universität Würzburg, Würzburg, Germany, 21.11.1997

Publ.-Id: 2727 - Permalink


EXAFS Studies of Uranium Sorption on Mineral Surfaces
Reich, T.;
  • Invited lecture (Conferences)
    2nd German-Russian Symposium on Electron and X-ray Spectroscopy, Berlin, Germany, 02.-05.11.1997, invited

Publ.-Id: 2726 - Permalink


Untersuchung zur Strahlenbelastung des medizinischen Personals bei [18F]FDG-PET-Studien
Linemann, H.; Will, E.; Beuthien-Baumann, B.;
Untersucht wurde die Strahlenbelastung des medizinischen Personals bei wesentlichen Arbeitsschritten von PET-Untersuchungen. Die Wirksamkeit von selbst entwickelten Strahlenschutzeinrichtungen und Arbeitsanweisungen wurde geprüft.
Methode: Die Personendosis und die Handdosis wurde für die einzelnen Arbeitsschritte bei [18F]FDG-Untersuchungen mit direkt ablesbaren Personendosimetern bzw. Thermolumineszenzdosimetern gemessen. Ergänzend wurden Ortsdosisleistungsmessungen durchgeführt.
Ergebnisse: Die mittlere Personendosis pro PET-Untersuchung betrug für die Spritzenpräparation 1 Sv, für die Injektion 3 Sv, für die Blutabnahme sowie für die Patientenlagerung und -betreuung je 6 Sv. Als mittlere Handdosis pro PET-Untersuchung wurden bei der Spritzenpräparation 710 Sv für die rechte und linke Hand und bei der Injektion 13 Sv für die rechte sowie 27 Sv für die linke Hand ermittelt. Alle Werte wurden unter Verwendung der im PET-Zentrum Rossendorf eingesetzten Strahlenschutzvorrichtungen und -maßnahmen gemessen.
Schlußfolgerung: Die entwickelten Strahlenschutzvorrichtungen gewährleisten die sichere Einhaltung der Jahresgrenzwerte für die Personendosis. Eine Ausnahme bildet die hohe Handdosis bei der Spritzenpräparation. Hier sollte eine automatische oder fernbedienbare Fülleinrichtung eingesetzt werden, wenn mit mehr als etwa 500 PET-Untersuchungen im Jahr gerechnet wird.

The aim of the investigation was the identification of those working steps with the highest radiation exposure for the medical personnel during [18F]FDG-PET studies and to evaluate the effectiveness of radiation protection devices and instructions applied.
Methods: The personal dose and hand dose were measured for each working procedure during [18F]FDG-PET studies using electronic personal dosimeters and thermoluminescent dosimeters respectively. Additionally, measurements of the radiation level in proximity of the patient were taken.
Results: The mean personal dose resulting from syringe preparation was 1 µSv/syringe, from injection 3 µSv/patient, from blood sampling during quantitative studies 6 µSv/study, and from positioning and handling of the patient 6 µSv/study. The mean hand dose per syringe preparation was 710 µSv for each hand. The mean hand dose during injection was 13 µSv for the right hand and 27 µSv for the left hand. All above mentioned values were measured applying the routine radiation shielding in use in our PET center.
Conclusion: With the developed radiation shielding and means to reduce radiation exposure applied the allowed annual dose for medical personnel are not exceeded. One exception could be the hand dose resulting from syringe preparation. If more than 500 PET investigations per year are expected, an automatic or remote filling device should be considered.
Keywords: PET, Strahlenbelastung, Personal, Personendosis, Handdosis, Abschirmung

PET, radiation exposure, medical personnel, personnel dose, hand dose, radiation shielding

  • Nuklearmedizin 39, 3/2000 (2000) 77-81

Publ.-Id: 2725 - Permalink


Ion bombardment induced relaxation of strained AlGaAs/GaAs heterostructures studied by the complementary use of RBS-channeling and X-ray synchrotron radiation
Turos, A.; Wieteska, K.; Wierzchowski, W. K.; Wendler, E.; Wesch, W.; Strupinski, W.; Grötzschel, R.;
  • Lecture (Conference)
    13th Int. Conf. on Ion Beam Analysis (IBA-13), Lisboa, Portugal, July 27 - Aug. 1, 1997

Publ.-Id: 2723 - Permalink


Actinide Chemistry at the Dedicated Rossendorf Beamline (ROBL) at the ESRF
Reich, T.; Nitsche, H.;
  • Invited lecture (Conferences)
    27. Jounees des Actinides, Dijon, France, 26.-29.4.1997, invited

Publ.-Id: 2722 - Permalink


Atomistic simulation of ion implantation into real 2d structures
Schmidt, B.; Posselt, M.; Strecker, N.; Feudel, T.;
  • Lecture (Conference)
    Int. Workshop on Challenges in Predictive Process Simulation (ChiPPS'97), Wandlitz, Germany, Aug. 17 - 20, 1997

Publ.-Id: 2721 - Permalink


Melanoidine - Chemisch modifizierbare Funktionalitätsmodelle zur Untersuchung des Komplexbildungsverhaltens von Huminsäuren
Pompe, S.;
  • Lecture (Conference)
    Forschungszentrum Karlsruhe, Institutsseminar INE, Karlsruhe, Germany, 17.09.1997

Publ.-Id: 2720 - Permalink


Fortschrittsbericht über die Synthese von Huminsäuren und deren Komplexbildungsverhalten gegenüber Uranylionen
Pompe, S.; Heise, K.-H.;
  • Lecture (Conference)
    Workshop zum Forschungsvorhaben: Einfluß von Huminstoffen auf das Migrationsverhalten radioaktiver und nichtradioaktiver Schadstoffe unter naturnahen Bedingungen, Saarbrücken, Germany, 10.07.1997

Publ.-Id: 2719 - Permalink


Erste Stabilitätsuntersuchungen an synthetischen und natürlichen Huminsäuren
Pompe, S.;
  • Lecture (Conference)
    Workshop zum Forschungsvorhaben: Einfluß von Huminstoffen auf das Migrationsverhalten radioaktiver und nichtradioaktiver Schadstoffe unter naturnahen Bedingungen, Saarbrücken, Germany, 10.07.1997

Publ.-Id: 2718 - Permalink


Melanoidine als definierte Huminsäureanaloga für Komplexbildungsuntersuchungen
Pompe, S.;
  • Lecture (Conference)
    Workshop:Geochemische Modellierung radiotoxische und chemisch-toxische Stoffe in natürlichen aquatischen Systemen, Forschungszentrum Karlsruhe, Institut für Nukleare Entsorgungstechnik, Karlsruhe, Germany, 23.-24.04.1997

Publ.-Id: 2717 - Permalink


lnterdisciplinary Nuclear Chemistry: Applications to Actinide Environmental Chemistry and Studies of the Chemical Properties of the Heaviest Elements
Nitsche, H.;
  • Invited lecture (Conferences)
    University of California Berkeley, Chemistry Department, Berkeley, CA, USA, January 1997, invited

Publ.-Id: 2716 - Permalink


Basic Research for Environmental Remediation: Speciation and Complexation of Aqueous Uranium
Nitsche, H.;
  • Invited lecture (Conferences)
    LLNL, Glenn T. Seaborg Institute tor Transactinium Science, Livermore, CA, USA, January 1997, invited

Publ.-Id: 2715 - Permalink


Actinides in the Environment
Nitsche, H.;
  • Invited lecture (Conferences)
    The Robert A. Welch Foundation Conference on Chemical Research, XXXXI The Transactinide Elements, Houston, USA, October 1997, invited

Publ.-Id: 2714 - Permalink


Moderne interdisziplinäre Entwicklungen in der Radiochemie.
Nitsche, H.;
  • Invited lecture (Conferences)
    Technische Universität München, Naturwissenschaftliche Fakultät München, Germany, January 1997, invited

Publ.-Id: 2713 - Permalink


Characterization of drills implanted with nitrogen plasma immersion ion implantation
Mändl, S.; Günzel, R.; Möller, W.; Hilke, R.; Knösel, E.; Künanz, K.;
  • Lecture (Conference)
    SMMIB 97, Gatlinburg, TE, USA, Sept. 1997

Publ.-Id: 2712 - Permalink


Fortschrittsbericht: Direktmessung alpha-aktiver Nuklide in Bauschutt zur Freigabeentscheidung
Nebelung, C.; Bernhard, G.; Nitsche, H.;
  • Lecture (Conference)
    7. Sitzung Arbeitskreis: Freimessung von Anlagenteilen und Bauschutt aus dem Abbau kerntechnischer Anlagen des Brennstoffkreislaufes, Köln, Germany, 12.05.1997

Publ.-Id: 2711 - Permalink


Phase formation of iron silicides during ion beam synthesis
Dobler, M.; Reuther, H.; Betzl, M.; Möller, W.;
  • Lecture (Conference)
    Int. Conf. Appl. Mössbauer Effect, Rio de Janeiro, Sept. 14 - 20, 1997

Publ.-Id: 2710 - Permalink


Investigation of Humic Acid Complexation Behavior with Uranyl Ions Using Modified Synthetic and Natural Humic Acids
Pompe, S.; Schmeide, K.; Bubner, M.; Geipel, G.; Heise, K.-H.; Bernhard, G.; Nitsche, H.;
We investigated the influence of phenolic OH groups on the complexation behavior of humic acids (HA's) with UO22+ ions at pH 4. Starting from the synthetic HA type M1, the natural HA Aldrich, and the natural HA Kranichsee, we synthesized modified HA's with blocked phenolic OH groups by derivatization with diazomethane. The partial blocking of phenolic OH groups was confirmed by a radiometric method which quantitatively determined the functional groups and by FTIR spectroscopy. The complexation behavior of the modified and unmodified HA's with UO22+ ions was investigated by time-resolved laser-induced fluorescence spectroscopy. The experimental data were evaluated with the metal ion charge neutralization model. We determined comparable complexation constants for all HA's. Two modified HA's (type M1 and Aldrich) had significantly lower loading capacities with UO22+ ions (10.5 ± 0.9 % and 9.7 ± 1.6 %, respectively) than the corresponding unmodified HA's (18.0 ± 2.0 % and 17.5 ± 1.6 %, respectively). This indicates that the blocking of the phenolic OH groups changes the complexation behavior of the HA's.
Keywords: Humic acid, synthetic humic acid, modified humic acid, phenolic OH groups, complexation, uranium
  • Radiochimica Acta 88 (2000) 553-558

Publ.-Id: 2709 - Permalink


XAS-Datenanalyse mit Hilfe von FEFF-Rechnungen
Hennig, C.;
  • Lecture (Conference)
    Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Leipzig, Germany, 11.11.1997

Publ.-Id: 2708 - Permalink


Laser lnduced Photoacoustic Spectroscopy using Solid State Tunable Lasers (OPO)
Geipel, G.; Brachmann, A.; Rutsch, M.; Brendler, V.; Bernhard, G.; Nitsche, H.;
  • Lecture (Conference)
    LLNL, Glenn T. Seaborg Institute for Transactinium Science, Livermore, CA, USA, 19.11.1997

Publ.-Id: 2707 - Permalink


XAFS Studies of the lnteraction of Radionuclides with Environmentally Relevant Materials
Denecke, M. A.;
  • Lecture (others)
    Forschungszentrum Karlsruhe, Institut für Nukleare Entsorgungstechnik, Karlsruhe, Germany, 20.11.1997

Publ.-Id: 2706 - Permalink


XAFS Investigations on Uranium(VI) Complexed with Carboxylates and Sorbed onto SiIica or Minerals
Denecke, M. A.;
  • Lecture (Conference)
    European Synchrotron Radiation Facility, Grenoble, France, 15.09.1997

Publ.-Id: 2705 - Permalink


EXAFS Investigations on Uranium(VI) Complexed with Carboxylates or Humates and Sorbed onto Silica
Denecke, M. A.;
  • Lecture (Conference)
    Argonne National Laboratory, Argonne, IL, USA, 11.03.1997
  • Lecture (Conference)
    Hamburger Synchrotronstrahlungslabor, HASYLAB Hamburg, Germany, 19.03.1997

Publ.-Id: 2703 - Permalink


Vergleichende Untersuchungen der Funktionalität von synthetischen Huminsäuren und Aldrich-Huminsäure
Bubner, M.; Pompe, S.; Heise, K.-H.; Nitsche, H.;
  • Lecture (Conference)
    Arbeitstagung der Deutschen Gesellschaft für Moor- und Torfkunde e.V., Bad Elster, Germany, 04.-05.09.1997

Publ.-Id: 2702 - Permalink


Computer-simulation and RBS/C studies of high-dose N+ and Al+ co-implantation in 6H-SiC
Yankov, R. A.; Voelskow, M.; Kreißig, U.; Kulikov, D. V.; Pezoldt, J.; Skorupa, W.; Trushin, Y.; Kharlamov, V. S.; Tsigankov, D. N.;
  • Techn. Phys. Lett. 23 (1997) 617 (Russian version - Pis'ma v ZhTF 23 (No 16) (1997) 6)

Publ.-Id: 2701 - Permalink


Einbindung geochemischer Speziationsmodule in Risk-Assessment Software
Brendler, V.;
  • Lecture (Conference)
    Workshop: Geochemische Modellierung, Karlsruhe, Germany, 22.-24.04.1997

Publ.-Id: 2700 - Permalink


Uranium Sorption on Phyllite
Arnold, T.;
  • Lecture (Conference)
    NEA International Meeting on Chemical Modeling of Sorption in the Field of Radioactive Waste Management, Oxford, Great Britain, 06-08.05.1997

Publ.-Id: 2699 - Permalink


Sorption von U(VI) auf Ferrihydrit
Arnold, T.;
  • Lecture (Conference)
    Workshop: Geochemische Modellierung, Karlsruhe, Germany, 23.-24.04.1997

Publ.-Id: 2698 - Permalink


Identification of an uranium surface species sorbed onto ferrihydrite by TRLFS (Time-resolved Laser-induced Fluorescence Spectroscopy)
Arnold, T.;
  • Lecture (Conference)
    Workshop: The Münster workshop on Mineral Surface Science, Münster, Germany, 02.-04.04.1997

Publ.-Id: 2697 - Permalink


An XAFS Investigation of the Formation of Actinide Aquo and Chloro Complexes
Allen, P. G.; Shuh, D. K.; Bucher, J. J.; Edelstein, N. M.; Reich, T.;
  • Lecture (Conference)
    214th American Chemical Society National Meeting, Las Vegas, NV, USA, 07.-11.9.1997

Publ.-Id: 2696 - Permalink


Nitrido Ligands as Bridges between Main Group and Transition Metals
Abram, U.;
  • Lecture (Conference)
    St. Annes Conference 1997 Oxford, Oxford, England, 17.12.1997

Publ.-Id: 2695 - Permalink


Technetium - ein künstliches Element erobert das Krankenhaus
Abram, U.;
  • Lecture (others)
    Johannes-Gutenberg-Universität Mainz, Institut für Kernchemie Mainz, Germany, 26.11.1997

Publ.-Id: 2694 - Permalink


Koordinierte Nitridoliganden - Lewis-Säuren für den Komplexchemiker
Abram, U.;
  • Lecture (others)
    Universität Potsdam, Institut für Anorganische Chemie, Potsdam, Germany, 06.11.1997

Publ.-Id: 2693 - Permalink


Structural mechanisms of the mechanical degradation of Ti-Al-V alloys: in-situ study during annealing
Berberich, F.; Matz, W.; Richter, E.; Schell, N.; Kreißig, U.; Möller, W.;
Aim of the work is to investigate the structural mechanisms of the enhanced hardness of the technical alloy Ti-6Al-4V due to N+ implantation and its degeneration. Ti-6Al-4V samples were implanted with doses (1 - 6) x 1017 N+/cm2 at 80 keV. The structural implications of the loss of hardness during annealing were studied by in-situ XRD-experiments with synchrotron radiation. Additional sample characterisation was performed by SEM, ERDA and Vickers hardness. The hardness reduction due to annealing is caused by phase transformation from TIN to Ti2N as well as by rearrangements in the alpha-Ti and beta-Ti phase of the alloy.
Keywords: Ti-6Al-4V, ion implantation, XRD, hardness
  • Poster
    11th International Conference on Surface Modification of Metals by Ion Beams, Beijing, China, September 19-24, 1999.
  • Surface and Coatings Technology 128-129 (2000) 450-454
  • Poster
    Symposium 25 Jahre Strukturforschung am Lehrstuhl Prof. J. Peisl, LMU München, 12.-13.Nov. 1999
  • Contribution to proceedings
    11th International Conference on Surface Modification of Metals by Ion Beams, Beijing, China, September 19-24, 1999.

Publ.-Id: 2692 - Permalink


Metallkomplexe in der Medizin
Abram, U.;
  • Lecture (Conference)
    Workshop für Bioanorganische Chemie, Technische Universität Dresden Dresden, Germany, 22.10.1997

Publ.-Id: 2691 - Permalink


Coordinated Nitrido Ligands - Lewis Bases for the Coordination Chemist
Abram, U.;
  • Lecture (Conference)
    University of Montevideo Montevideo, Uruguay, 29.09.1997

Publ.-Id: 2690 - Permalink


Report January 1998 - June 1999 Project-Group ESRF-Beamline (ROBL-CRG)
Matz, W.;
Bi-annual report on the activities at the ROssendorf BeamLine (ROBL) at the ESRF in Grenoble. The report contains selected contributions on actual research topics, a list of all scheduled experiments, and short experimental reports.
Keywords: ROBL, synchrotron radiation, radiochemistry, materials science, X-ray- absorption-spectroscopy, X-ray-diffraction
  • Open Access LogoWissenschaftlich-Technische Berichte / Forschungszentrum Rossendorf; FZR-275 September 1999

Downloads:

Publ.-Id: 2689 - Permalink


Technetium - a Man-made Element Conquers the Hospital
Abram, U.;
  • Lecture (Conference)
    Federal University of Brasilia, Department of Chemistry Brasilia, Brazil, 18.09.1997
  • Lecture (Conference)
    Federal University of Santa Maria, Department of Chemistry, Santa Maria, Brazil, 23.09.1997

Publ.-Id: 2688 - Permalink


Nitridobrücken zwischen Rhenium und Elementen der 3. Hauptgruppe
Abram, U.;
  • Lecture (others)
    Technische Universität Dresden, Institut für Analytische Chemie Dresden, Germany, 10.07.1997

Publ.-Id: 2687 - Permalink


Nitridoliganden als Lewis-Säuren in der Koordinationschemie
Abram, U.;
  • Lecture (others)
    Universität Oldenburg, Fachbereich Chemie Oldenburg, Germany, 08.07.1997

Publ.-Id: 2686 - Permalink


Technetium- und Rheniumkomplexe mit Thioharnstoffen und ihren Derivaten
Abram, U.;
  • Lecture (Conference)
    Leipziger Treffen für Koordinationschemie Leipzig, Germany, 20.-21.05.1997

Publ.-Id: 2685 - Permalink


Gold(III)-Komplexe mit 2-(N,N-Dimethylaminomethyl)phenyl - Darstellungen, Strukturen und Reaktionen
Abram, U.; Mack, J.; Ortner, K.;
  • Lecture (Conference)
    Chemiedozententagung 1996 Berlin, Germany, 16.-19.03.1997

Publ.-Id: 2684 - Permalink


Entwicklung huminsäureähnlicher Melanoidine als Funktionalitätsmodelle für Huminsäuren und ihr Vergleich mit Fluka-Huminsäure hinsichtlich ihres Komplexbildungsverhaltens gegenüber Uran(VI)
Pompe, S.;
  • Other report
    TU Dresden, Germany, 1997

Publ.-Id: 2683 - Permalink


Proton irradiation effects in silicon devices
Simoen, E.; Vanhellemont, J.; Alaerts, A.; Claeys, C.; Gaubas, E.; Kaniava, A.; Ohyama, H.; Sunaga, H.; Nashiyama, I.; Skorupa, W.;
  • Contribution to external collection
    Proc. of the 7.Int.Symp. on "Recent progress in Accelerator Beam Applications", Takasaki, Japan, JAERI-Conf. 97-003, p. 224

Publ.-Id: 2682 - Permalink


Zur Wechselwirkung von Uran mit Silicat in wäßrigen Systemen
Moll, H.;
  • Other report
    TU Dresden, Germany, 1997

Publ.-Id: 2681 - Permalink


Ion beam synthesis by high dose tungsten implantation into 6H-SiC
Weishart, H.; Schöneich, J.; Voelskow, M.; Skorupa, W.;
  • Contribution to external collection
    MRS Symp. Proc. 438 (1997) 283

Publ.-Id: 2680 - Permalink


Zeitaufgelöste laser-induzierte Floureszenzspektroskopie zur Charakteristik der Wechselwirkung des Uranylions mit Huminsäuren und Carboxylatliganden
Brachmann, A.;
  • Other report
    TU Dresden, Germany, 1997

Publ.-Id: 2679 - Permalink


Synthese von Nitrenkomplexen mit N-Trimethylsilylanilin. III. Charakterisierung und Kristallstruktur von [Re(NPh)(OsiMe3)Cl(NH2Ph)(py)2][ReO] und trans-[Re2O3(py)4]
Wittern, U.; Strähle, J.; Abram, U.;
  • Z. anorg. allg. Chem. 623, 218 (1997)

Publ.-Id: 2678 - Permalink


X-ray Photoelectron Study of the lnteraction of UO2(ClO4)2 with Calcite and Diabase Minerals in Water Solutions
Teterin, Y. A.; Ivanov, K. E.; Baev, A. S.; Nefedov, V. I.; Geipel, G.; Reich, T.; Nitsche, H.;
  • Poverkhnost 4-5, 202 (1997

Publ.-Id: 2677 - Permalink


A superconducting RF gun: Current status of the Drossel cooperation
Janssen, D.; Buettig, H.; Bushuev, A.; Karliner, M.; Konstantinov, S.; Kruchkov, J.; Myskin, O.; Petrov, V.; Sedlyarov, I.; Tribendis, A.; Volkov, V.; vom Stein, P.; Vogel, H. P.; Matheisen, A.; Pekeler, M.; Sandner, W.; Will, I.;
The Drossel collaboration was established for the development of a low emittance high average current injector for the ELBE project. The injector is based on a photocathode RF gun with a superconducting cavity. The high average current is especially important for applied research and other applications. First tests of the gun cavity has been done at DESY TTF.
Keywords: Drossel cooperation, superconducting RF gun, DESY TTF, applied research, photocathode, high average current
  • Poster
    European Conference on Application of Accelerators in Research and Technology, Dresden, July 1999; P1 - 159

Publ.-Id: 2676 - Permalink


Thermochromatography of Heavy Actinides - Determination of the Sublimation Enthalpy of Es
Taut, S.; Hübener, S.; Eichler, B.; Gäggeler, H. W.; Schädel, M.; Zvara, I.;
  • Radiochimica Acta 78, 33-38 (1997)

Publ.-Id: 2675 - Permalink


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