RadChem 2018

Session

NAM 5

NAM.5

18 May 2018, 10:30

Casino Conference Centre

Conveners

NAM 5

• Pavol Povinec (BIONT a.s.)
• Nora Vajda (RadAnal Ltd.)

615. Determination of iron concentration in brain tissues using PIXE method

Ján Pánik (Institute of Medical Physics, Biophysics, Informatics and Telemedicine, Faculty of Medicine, Comenius University, 813 72 Bratislava)

18/05/2018, 10:30

Nuclear Analytical Methods

Verbal

Particle Induced X-rays Emission (PIXE) analysis is non-destructive method used in many fields of interest. With this method, an absolute concentration of investigated elements can be determined at ppm levels. Collaboration between the Medical Faculty and the CENTA laboratory was set up to use PIXE analysis for determination of iron concentrations in rabbit and human brain tissues, which...

578. Alpha-spectrometry in aqueous solution

Dominik Krupp (HS Mannheim - University of Applied Sciences)

18/05/2018, 10:45

Nuclear Analytical Methods

Verbal

Contemporary alpha ray spectrometry suffers from number of shortcomings: e.g. high time consumption, requirement of expensive chemicals and electrodeposition equipment as well as changing electrodeposition yields. Nevertheless, these and other unfavorable aspects have to be accepted to obtain decay informations about the alpha particle emitting radionuclides.
The aim of our current project is...

596. Comparison of 3 radio-imagers (Cyclone™/Beaver™/µ-imager™ DFINE) to characterize radioactive emissions of 3H, 14C and natural Uranium samples.

Sophie Billon (Université de Poitiers, UMR 7285 CNRS, IC2MP)

18/05/2018, 11:00

Nuclear Analytical Methods

Verbal

Radio-imagers, mainly dedicated to biological and medicine applications, can be used to reconstruct 2D mapping of radioactivity on a surface. The resulting image, called Digital Autoradiography (DA), gives a non destructive analysis of radioactivity.
Recently, a new scope for the radio-imagers has emerged: nuclear facilities decommissioning. Indeed, in such context, surface contamination...

680. Methodology for the preparation and validation of plutonium age dating materials

Dr Zsolt Varga (European Commission, Joint Research Centre, Directorate for Nuclear Safety and Security)

18/05/2018, 11:15

Nuclear Analytical Methods

Verbal

The present work describes a method for the preparation and validation of plutonium age dating reference materials [1]. The prepared reference samples can be used to validate experimental protocols for determining the production date of plutonium via the 234U/238Pu, 235U/239Pu, 236U/240Pu and 241Am/241Pu chronometers. The starting material was prepared using reactor-grade plutonium, which was...

625. Characterization concept for the disposal of radioactively contaminated mercury wastes from the decommissioning of nuclear facilities

Larissa Klaß (Forschungszentrum Jülich GmbH)

18/05/2018, 11:30

Nuclear Analytical Methods

Verbal

The disposal of mercury from nuclear applications that contains radionuclides due to contamination or neutron activation is very challenging, not only due to its radiotoxicity but also due to its high chemotoxicity and mobility in the environment. Elemental mercury has been used in several nuclear facilities, for example as coolant and shielding material in early fast reactors, as sealant in...

630. Study of phosphate species in soils by radioisotopic labeling

Prof. Noemi M Nagy (Imre Lajos Isotope Laboratory, Department of Physical Chemistry, University of Debrecen)

18/05/2018, 11:45

Nuclear Analytical Methods

Verbal

The nutrient cycle of soils is mainly determined by the concentration of macro and micro nutrients in the soil solution directed by the interactions between the solid phase of soil and the soil solution. These interactions are essential in case of nutrients, such as phosphate anion, strongly binding some soil components. Phosphate anion can precipitate with different cations (e.g. iron,...