Conveners
Session 10 - Radioanalytical Chemistry and Nuclear Analytical Techniques
- Zoltan Homonnay (Eotvos Lorand University, Hungary)
- Jan Kucera (Nuclear Physics Institute ASCR, Czech Republic)
Dr
Zsolt Revay
(Technische Universität München, Germany)
20/09/2012, 08:00
Radioanalytical Chemistry and Nuclear Analytical Techniques
Invited Lecture
The Forschungsneutronenquelle Heinz Maier-Leibnitz at Garching (FRM II) is one of the largest neutron research centers in the world with almost 30 high-end instruments. The Prompt Gamma Activation Analysis (PGAA) facility is located at the cold neutron beam with a flux of 6 x 10^10 cm-2 s-1, the highest beam flux reported. The instrument has been reconstructed recently to enable elemental...
Prof.
Elisabete De Nadai Fernandes
(Nuclear Energy Center for Agriculture, University of Sao Paulo, Brasil)
20/09/2012, 08:20
Radioanalytical Chemistry and Nuclear Analytical Techniques
Invited Lecture
Currently, Brazil has become a leader in development of science and technology for the agribusiness sector of sugarcane. The country has maintained a tradition of decades as the world's largest producer of sugarcane preferentially oriented to the production of sugar and ethanol. In addition, bioelectricity generated by the burning of bagasse is employed to power mills with electric power...
Dr
Rolf Zeisler
(NIST, USA)
20/09/2012, 08:40
Radioanalytical Chemistry and Nuclear Analytical Techniques
Invited Lecture
This review of a 40-year practice in neutron activation analysis (NAA) is intended to illustrate the mutual benefits drawn from the values of a unique analytical tool and the enabling properties provided with the reference materials. During this period NAA transitioned rapidly to instrumental multi-element procedures based on high resolution gamma-ray spectrometry with germanium detectors. On...
Dr
Richard Lindstrom
(National Institute of Standards and Technology, USA)
20/09/2012, 09:00
Radioanalytical Chemistry and Nuclear Analytical Techniques
Invited Lecture
Nuclear methods have well-established advantages in chemical analysis. Paradoxically, many of these advantages stem from the absence of chemistry in the analytical process. Nuclear reactions are often easier to understand than chemical reactions, and nuclear methods are usually direct, with simple equations relating the laboratory measurements to the sought-for composition. Neutron activation...
Prof.
A. CHATT
(Dalhousie University, Canada)
20/09/2012, 09:20
Radioanalytical Chemistry and Nuclear Analytical Techniques
Invited Lecture
Trace elements play an important role in biological activities of living matter. A considerable amount of data on the total trace element levels in various biological tissues already exists in the literature. However, trace elements are mainly incorporated in proteins in these systems. It is important to separate these protein-bound trace elements for the identification as well as...
Prof.
György Pátzay
(BME KKFT, Hungary)
20/09/2012, 09:40
Radioanalytical Chemistry and Nuclear Analytical Techniques
Oral Communications
There are some tanks at the nuclear power plant in Paks, Hungary containing sludge type radioactive waste containing more or less liquid phase too. The general physical and chemical charactersitics (density, pH, total solid, dissolved solid etc.) and chemical and radiochemical composition of these sludges are important information for volume reduction and solidification treatment of theese...
Dr
Mickael Mendes
(CEA, France)
20/09/2012, 09:55
Radioanalytical Chemistry and Nuclear Analytical Techniques
Oral Communications
The increase of traffics of illegal nuclear materials requires the improvement in nuclear forensics. The age of the sample, which corresponds to the determination of the date of the last purification, can give information about its origin. The aim of this work is to develop an efficient procedure which allows the determination of the age of micro-quantities. Dating micro-quantities of uranium...
Dr
Petra Kudejova
(Technische Universitaet Muenchen, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Garching, Germany)
20/09/2012, 10:10
Radioanalytical Chemistry and Nuclear Analytical Techniques
Oral Communications
The ultimate detection limits (DL) of the Prompt Gamma Activation Analysis (PGAA) method depend strongly on the amount and matrix of the measured sample as well as on the background signal contribution to the signal coming from the sample itself.
Recently, we have performed few experiments close to the detection limits for given elements at the high-flux-PGAA facility at FRM II in Garching....
Mr
Stefan Soellradl
(Paul Scherrer Institute & Universität Bern, Switzerland)
20/09/2012, 10:25
Radioanalytical Chemistry and Nuclear Analytical Techniques
Oral Communications
At the beam line of Prompt Gamma Activation Analysis (PGAA), one of the most powerful cold neutron beams in the world is available for experiments with neutrons. It offers unique possibilities to improve the detection limits, counting statistics and allows even the detection of trace elements and extremely small samples.
Problems arise, if relatively high amounts of high-cross-section...
Dr
Christian Schütz
(Institute for Nuclear Chemistry, University of Mainz, Fritz-Strassmann-Weg 2, D-55099 Mainz, Germany)
20/09/2012, 10:40
Radioanalytical Chemistry and Nuclear Analytical Techniques
Oral Communications
Category: Radioanalytical Chemistry and Nuclear Analytical Techniques
Type of presentation: Oral presentation
Comparison of Quantitative Neutron Capture Radiography, Inductively Coupled Plasma Mass Spectrometry, and
Prompt Gamma Activation Analysis for Boron Determination in Biological Samples
C. L. Schütz, C. Brochhausen, D. Iffland, J.V. Kratz, B. Kuczewski,
G. Otto, T. Schmitz,...
Dr
Steffen Happel
(TrisKem International, Bruz, France)
20/09/2012, 10:55
Radioanalytical Chemistry and Nuclear Analytical Techniques
Oral Communications
Due to its radiotoxicity there is a strong need for the determination of Sr-90 in environmental samples. One of the main pathways for Sr-90 ingestion is the consumption of water; accordingly the determination of Sr-90 in water samples is of special importance, in routine analysis for environmental monitoring as well as in emergency situations and contamination control. Rapid methods are of...
Dr
Céline Bouvier-Capely
(IRSN/PRP-HOM/SDI, France)
20/09/2012, 11:10
Radioanalytical Chemistry and Nuclear Analytical Techniques
Oral Communications
The general population is chronically exposed to uranium and polonium mainly through day-to-day food and beverage intake. The measurement of these naturally-occurring radionuclides in drinking water is important to assess their health impact. The methods currently used for these analyses require tedious sample preparation techniques (evaporation, precipitation, column separation...) and long...
