Conveners
Student Poster Appetizers: SPA 1
- Kateลina Fialovรก (Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Department of Nuclear Chemistry)
- Lukรกลก Ondrรกk
Student Poster Appetizers: SPA 2
- Lukรกลก Ondrรกk
- Kateลina Fialovรก (Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Department of Nuclear Chemistry)
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Fynn Sรถren Sauerwein16/05/2022, 15:30SPA
In recent years, much effort has been invested in recycling of minor actinides from PUREX raffinate solutions. Hydrophilic N-donor ligands such as tetrasodium-3,3',3'',3'''-([2,2'-bipyridine]-6,6'-diylbis(1,2,4-triazine-3,5,6-triyl))tetrabenzenesulfonate (SO3-Ph-BTBP) are used for selective separation of Am(III) from Cm(III) and other trivalent fission lanthanides by smart...
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Claudia Sieber (Helmholtz Zentrum Dresden-Rossendorf)16/05/2022, 15:35SPA
Radionuclide speciation inside long-term radioactive waste repositories needs to be understood in order to ensure effective containment of the waste. Organic ligands originating from the degradation of organic components inside such a repository can possibly affect the mobility of radionuclides in solution. The present study focuses on nitrilotriacetic acid, NTA, as a model molecule and...
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Tamara Gajลกt16/05/2022, 15:40SPA
Superplasticizers are organic cement additives often used in construction as they improve the properties of concrete. The engineered barriers in repositories for radioactive waste often include cementitious materials. Superplasticizers and their radiolytic and hydrolytic breakdown products and how they might affect the transport properties of radionuclides represent a concern in the long-term...
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Karol Koฤan (Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague)16/05/2022, 15:45SPA
The batch sorption method of measuring radionuclide distribution between the crushed, sieved solid phase and liquid phase is commonly used for obtaining sorption coefficients Rd/Kd. These are often crucial input parameters used in reactive transport models for estimating a possible future radionuclide release from a radioactive waste repository [1]. Therefore, it is extremely important to...
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Nina Huittinen (Helmholtz-Zentrum Dresden - Rossendorf)16/05/2022, 15:50SPA
This contribution provides an overview of a current research network funded by the German Federal Ministry of Education and Research (BMBF), entitled โFundamental investigations of actinide immobilization by incorporation into solid phases relevant for final disposalโ โ AcE. The AcE project aims at understanding the incorporation and immobilization of actinides (An) in crystalline,...
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Mr Vรกclav Znamรญnko (Department of Analytical Chemistry, Faculty of Chemical Engineering, University of Chemistry and Technology, Prague, Technickรก 5, 166 28 Praha 6)16/05/2022, 15:55SPA
The decommissioning of nuclear facilities will produce all levels of radioactive waste, including intermediate- and high-level waste that is not allowed to be disposed of in low- and intermediate-level radioactive waste repositories. Therefore, it is necessary to find infill materials used in a deep geological repository that will make it safe for the environment for a long period of time. The...
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Marta Bureลกovรก (CTU FNSPE)16/05/2022, 16:00Poster
Cement-based materials are used as engineering barriers for low-level and intermediate-level radwaste and in high-level radwaste disposal as facilities or buffer materials. To evaluate the long-term safety of radioactive waste repositories, it is necessary to describe the behavior of stored radionuclides that will be present, such as europium used as an analog of trivalent actinoids. The...
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1104. Characterization of radium-containing compounds in the human digestive tract for decorporationMr Ahmadabdurahman Shamoun17/05/2022, 15:30SPA
Radionuclides ingested with food may accumulate in the human body and pose a potential health risk. Radium is a naturally occurring radionuclide, which may be present in drinking water and in certain foods in larger quantities up to ca. 10 Bq kg-1 [1]. Daily consumption of only a few Brazil nuts, which can have activity concentrations of > 200 Bq kg-1 caused by radium [2], may lead to an...
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Ioannis Ioannidis (University of Cyprus)17/05/2022, 15:35SPA
ABSTRACT
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The desorption of uranium from microplastic surfaces has been investigated as a function of pH in aqueous solutions under ambient conditions. In addition, the effect of complexing ligands (e.g. EDTA, NTA, Citrate) on the desorption from plastic surfaces (including the plastic containment surface) has been studied. The evaluation of the experimental data indicate that the solution pH... -
Ioannis Ioannidis (University of Cyprus)17/05/2022, 15:40SPA
ABSTRACT
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The paper describes an alternative approach for the determination of uranium, radium-226 and potassium levels in Brazil nuts. Potassium analysis was performed by a NaI detector using 1-gram of nutโs ashes, radium analysis was carried out by radon emanation measurements after EDTA-mediated ash dissolution, and uranium levels were determined by alpha spectroscopy after acidic... -
Natasha Chipanovska (Department for Low and Medium Energy Physics, Joลพef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia)17/05/2022, 15:45SPA
Krลกko Nuclear Power Plant (KNPP) is located in south โ eastern part of Slovenia, on the left bank of the Sava River. Emissions of the operational Pressurized Water Reactor (PWR) are mainly 14C and 3H. The dam for the Breลพice Hydroelectric Power Plant (BHPP) constructed few kilometres downstream has caused changes in the local climate parameters and hydrology around KNPP. The simultaneous...
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Miriam Mindovรก17/05/2022, 15:50SPA
The nuclear forensic analysis deals with tracing the origin of nuclear materials found outside the regulatory control. Each material contains a different amount and type of radionuclides that are characteristic of each type of material. This unique composition and characteristic parameters are used to identify unknown samples. They are referred to as โfingerprintsโ due to their uniqueness....
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Mr Robson C. Lima (Nuclear Energy Center for Agriculture, University of Sรฃo Paulo, Piracicaba SP Brazil)17/05/2022, 15:55SPA
Domestication of dogs and cats took place thousands of years ago, altering the behavior and physiology of animals. Since then, the number of pets has increased year after year, reaching nowadays 471 million dogs and 373 million cats in the world. On average, half of a pet's cost of living is related to food, mainly dry kibble. The existence of exclusive pet foods is relatively recent. The...
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Mr Gustavo Nazato Furlan (Nuclear Energy Center for Agriculture, University of Sรฃo Paulo)17/05/2022, 16:00SPA
Sugarcane has been a versatile crop in Brazil and an integral part of its economy by providing key components such as sugar, ethanol and energy. It is the number one source of renewable energy, accounting for 17% of total energy consumption. Sugar is the countryยดs fourth largest export commodity. Brazil is the worldโs largest sugar producer with 34.65 million tons in 2021, maintaining its...
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Efthalia Georgiou17/05/2022, 16:05SPA
Abstract
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The removal of Th(IV) from aqueous solutions by oxidized biochar fibres derived from palm tree fibers (OBF) has been investigated at pH 3 and under ambient conditions by batch type experiments and FTIR spectroscopy. The experimental data have shown that the Th(IV) adsorption by OBF is well fitted by the Langmuir isotherm model (qmax= 0.18 mol kg-1 or 42 g kg-1), is an entropy-driven... -
Jan Houzar (Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, 115 19 Prague, Czech Republic)17/05/2022, 16:10SPA
Chemical decontamination of nuclear facilities generates large volumes of low-level radioactive waste. Following worldwide efforts to reduce spent chemical reagents and radioactive waste volumes, new methods of regeneration and reuse of spent decontamination solutions are studied. This work focuses on the usage of ionic liquids (ILs) as an organic phase in solvent extraction of strontium from...
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Kateลina Fialovรก (FNSPE CTU in Prague)17/05/2022, 16:15SPA
Diglycolamides are frequently used as extraction agents in many fields of nuclear and separation chemistry including nuclear waste management, nuclear fuel reprocessing, radioanalytical chemistry, radioecology or nuclear medicine. They are tridentate ligands with extraction abilities to extract trivalent ions, mainly lanthanides and actinides [1].
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This ability can be beneficial in separation... -
Chao Ma17/05/2022, 16:20SPA
Chromium-51 (51Cr) is an attractive radionuclide in the clinical application for labelling of red blood cells, diagnosis of gastrointestinal bleeding and assessing life span of red cells. This work reports that synthesis of two chromium based metal-organic frameworks (MOFs) as radiation targets to produce high specific activity 51Cr production utilizing the Szilard-Chalmers effect. First, the...
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Michal Sakmรกr (Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Department of Nuclear Chemistry)17/05/2022, 16:25SPA
Targeted alpha particle therapy (TAT), which uses radionuclides emitting alpha particles is one of the promising possibilities for the treatment of a broad range of malignancies. A short range of alpha particles in soft tissues (approx. 50-100 ฮผm) and high linear energy transfer (LET) allows to destroy tumor cells effectively. Precise targeting by appropriate carrier should ensure efficient...
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Alลพbฤta Horynovรก (CTU in Prague, FNSPE, Department of Nuclear Chemistry)17/05/2022, 16:30SPA
Specific and unique equipment โ decontamination loop - for the practical training of the students in the field of decontamination was devised and designed at the Department of Nuclear Chemistry, CTU in Prague, and it was manufactured by Wood Nuclear Slovakia s.r.o.
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The decontamination loop is a modular system intended for study of various decontamination methods and procedures. For this... -
Chiara Timperanza (University of Gothenburg)17/05/2022, 16:35SPA
To enhance the therapeutic efficacy of radioimmunotherapy of cancer, several pretargeting strategies have been developed. In pretargeted radioimmunotherapy, the tumour is pretargeted with a modified monoclonal antibody that has affinity for both, tumour antigen and radiolabeled carrier. A big challenge in cancer treatment is the elimination of occult disseminated tumour cells, in this context...
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Marta Bureลกovรก (CTU FNSPE)SPA
Cement-based materials are used as engineering barriers for low-level and intermediate-level radwaste and in high-level radwaste disposal as facilities or buffer materials. To evaluate the long-term safety of radioactive waste repositories, it is necessary to describe the behavior of stored radionuclides that will be present, such as europium used as an analog of trivalent actinoids. The...
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