Partners
Contact
Dr. Melissa A. Denecke
Forschungszentrum Karlsruhe - INE Postfach 3640 - 76021 Karlsruhe Germany  + 49 (0) 7247 82 5536  + 49 (0) 7247 82 3927 |
Development of components for spatially resolved speciation studies at the INE-Beamline
Status
| Terminated |
- Planned from November 2004 till May 2006 |
Goals
The aim of this joint research project is to:
- enhance the development and the improvement of the optical components available at the FZK-INE-Beamline (a µ-focus option will be implemented to perform spatially resolved µ-XAFS and µ-XRD measurements);
- better the service of the INE-Beamline as an ACTINET Pooled facility.
Expected results
The impact of the project directly results from the intrinsic advantages of a focussed optics:
- the possibility to study smaller sample volumes, which is important when the activity level of the samples becomes too great to be handled on the present INE-Beamline (with an exemption level limit of 1,000,000-times);
- the combination of imaging techniques and spectroscopic information, X-Ray absorption and near edge structure spectroscopy;
- the crystalline phase identification of buried phases (or secondary phase “islands”) on a bulk surface, using scanning µ-XRD.
Publications
- Denecke M.A., Janssens K., Proost K., Rothe J., Noseck U..- Confocal micro-XRF and micro-XAFS studies of uranium speciation in a tertiary sediment from a waste disposal natural analogue site.- In: Environ. Sci. Technol., 39:7(2005), p. 2049-2058
- Terzano R., Spagnuolo M., Medici L., Vekemans B., Vincze L., Janssens K., Ruggiero P..- Copper stabilization by zeolite synthesis in polluted soils treated with coal fly ash- In: Environ. Sci. Technol., 39(2005), p. 6280-6287
Presentations
- Denecke M.A., "Microanalysis of Nuclear Samples at a Synchrotron", Workshop on fundamentals of microbeam analysis organized by the European Microbeam Analysis Society (EMAS) 13-16 May 2006/ Karlsruhe, Germany, 2006. Presentation
- Denecke M.A., "X-ray spectroscopic investigations related to high level nuclear waste disposal", Diamond 30 April 2006/ Chilton, England, 2006. Invited presentation
- Terzano R., Spagnuolo M., Vekemans B., Denolf W., Dorrinè W., Janssens K., Falkenberg G., Fiore S., Ruggiero P., "Combined use of different X-ray microanalytical techniques for the speciation of heavy metals in a polluted soil", International Conference of Environmental Chemistry 1-7 September 2005/ Rimini, Italy, 2005. Presentation
- Denecke M.A., "Confocal µ-XRF and µ-XAFS Studies of an Uranium-Rich Sediment from a Nuclear Waste Disposal Natural Analogue Site", Microscopy & Microanalysis 31 July 2005 - 4 August 2005/ Honolulu, Hawaii, 2005. Presentation
- Janssens K., "Speciation of Ni in the Monchegorsk aerosol", AIRMON05 - Fifth International Symposium on Modern Principles of Air Monitoring 12-16 June 2005/ Loen, Norway, 2005. Presentation
- Terzano R., Janssens K., Schalm O., Vincze L., Vekemans B., Spagnuolo M., "EPMA and m-SR-XRF characterization of zeolite particles synthesized in a soil polluted by copper and treated with fused coal fly ash", European Microbeam Analysis Society meeting 23-27 May 2005/ Firenze, Italy, 2005. Presentation
- Terzano R., Spagnuolo M., Medici L., Vekemans B., Janssens K., Ruggiero P., "Spectroscopic investigation on the chemical forms of Cu during the synthesis of Zeolite X at low temperature", FIST05 Meeting (Conference of the Italian Earth Science Federation) 20-25 May 2005/ Bologna, Italy, 2005. Presentation
- Janssens K., "SR Techniques: new and future applications", ESRF-CNRS Workshop on Synchrotron Radiation in Art and Archaeology 9-11 February 2005/ Grenoble, France, 2005. Presentation
- Denecke M.A., "Examples of actinide speciation using combined techniques", Symposium on Microanalysis by means of synchrotron radiation November 2004/ Antwerp, Belgium, 2004. Presentation
Reports
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