RadChem 2010

Session

Nuclear Analytical Methods 1

NAM1

Apr 19, 2010, 8:00 AM

Casino Conference Centre

181. Neutron and photon activation and ion beam techniques in geochemical characterization of moldavites and other impact glasses

Jiří Mizera (Nuclear Physics Institute, Academy of Sciences of the Czech Republic)

4/19/10, 8:00 AM

Nuclear Analytical Methods

Verbal

The study presents results of geochemical characterization of a large collection of tektites and other impact glasses. Impact glasses are produced through large meteoritic impacts by melting of surface materials. Tektites are impact glasses ejected from the impact site to distant strewn fields. The collection included namely moldavites from the major parts of the Central European tektite...

318. Determination of silicon in beer and beer processing materials by fast neutron activation analysis. Is beer a possible protective factor in preventing Alzheimer´s disease?

Dr Jan Kučera (Nuclear Physics Institute ASCR, Řež, Czech Republic)

4/19/10, 8:20 AM

Nuclear Analytical Methods

Verbal

Silicon is an essential element for organisms. Although the biochemical mechanisms remain obscure, dietary Si is considered important for growth and development of bone and connective tissues. Recently, it has been suggested that Si and silicic acid may decrease the bioavailability of aluminium by blocking its uptake through the gastrointestinal tract and by impeding reabsorption in kidney...

160. Prompt γ activation analysis as performed in Budapest

Dr Zsolt Révay (Institute of Isotopes)

4/19/10, 8:40 AM

Nuclear Analytical Methods

Verbal

Institute of Isotopes has been a major center in further development of Prompt Gamma Activation Analysis (PGAA). The paper describes the analytical procedure followed at Budapest. The analysis is based on the careful calibration of the detector system. The counting efficiency and non-linearity of the Compton-suppressed high-purity germanium detector is determined regularly, and enables the...

173. Upgrade of the prompt-γ activation analysis (PGAA) and neutron induced prompt-γ spectroscopy (NIPS) facilities of the Budapest research reactor

Dr László Szentmiklósi (Institute of Isotopes, Hungarian Academy of Sciences)

4/19/10, 9:00 AM

Nuclear Analytical Methods

Verbal

The Prompt-Gamma Activation Analysis (PGAA) and the Neutron Induced Prompt-gamma Spectroscopy (NIPS) facilities are located at the end of the guided beamline No.1. of the Budapest Research Reactor. In the last few years they were significantly upgraded. The partial replacement and realignment of the neutron guide elements resulted in a factor of four gain of the neutron flux. To make possible...