Rutherford backscattering spectrometry is used to determine the structure and composition of materials by measuring the backscattering of a beam of high energy ions (typically protons or alpha particles) impinging on a sample. Computer modeling of RBS is used for analysis of modeled structures created by molecular dynamics method.
The aim of the presentation is to discuss some fundamentals concerning the question of efficiency and scalability of numerical algorithms on computing cluster. The issues related to the development of such algorithms will be illustrated for the problem of solving system of linear equations with tridiagonal matrix derived from the approximation of transport linear differential equation. Application of the algorithm to finding the solutions of other partial differential equations will be also presented.
Serdecznie zapraszamy,
Most of us understand the fundamental role of experiment for scientific work. Physical experiments are rightfully associated with high costs of hardware, preparation, execution and analysis time. To optimize those constraints, Design of Experiments (DoE) methods are employed that allow to reduce the number of test samples (trials) and form conclusions based on statistical analysis of results.
Over the last decade, High Performance Computing (HPC) has become an attractive tool in nuclear safety analysis due to the fast progress in building large computing clusters. In particular, Computational Fluid Dynamics (CFD) technique is recognized as a valuable research tool for the analysis of the thermal-hydraulics phenomenon. However, the more advanced the code and the research problem, the time needed to obtain final results is respectively longer. Therefore, it is important to consider not only computational capabilities but also an efficient use of the available resources.
The aim of this work was to analyse selected issues related to the use of supercritical carbon dioxide as a cooling medium or even as a moderator in High Temperature Reactors. Extreme work conditions pose unique technological and material challenges. The most important differences between this cycle and the Brayton and Rankin cycles as well as potential solutions for key problems of the circuit in various configurations will be presented. In addition, an air cooling proposal will be discussed.
Serdecznie zapraszamy,
M. Dąbrowski, T. Kwiatkowski
The presentation will be based on the session of the Summer School on Nuclear Reactors, which was held in Karlsruhe, in August 2019. The author will make a short overview of ongoing projects around the world, especially Molten Salt Reactors, and small modular reactors, but not only. Different ideas of cogeneration energy production and different approaches to passive systems will be presented.
Serdecznie zapraszamy,
M. Dąbrowski, T. Kwiatkowski
1. Energetyka w Polsce, zmiany struktury paliwowej oraz wiekowej. Gaz jako paliwo, czy może być konkurencyjny w stosunku do węgla, energetyki jądrowej?
2. Polityka Energetyczna Polski do roku 2040, zakładana rola energetyki gazowej, jądrowej
3. Czy gaz w Polsce stanie się paliwem „przejściowym”. Jakie są plany dużych graczy związane z rozwojem energetyki gazowej
4. Czy szykuje się postęp w rozwoju turbin gazowych, energetyki jądrowej, odnawialnej?
5. Jakie okoliczności mogą sprzyjać zmianom miksu paliwowego w energetyce krajowej?
6. Podsumowanie
The Nuclear Non-Proliferation Treaty (NPT) is an international agreement in force since 1970, under which nuclear-weapon member states have undertaken not to sell this technology to countries that do not have it, and thus non-nuclear-weapon states have undertaken not to develop this technology for purposes other than research.
The treaty is divided into three pillars: non-proliferation, disarmament, and the right to peacefully use nuclear technology, which are interlinked by the 11 articles that make up the treaty.
