Procházení Acta Polytechnica CTU Proceedings. 2022, vol. 37 dle data publikování

Zobrazují se záznamy 1-9 z 9

    • Proposal of point-wise power reconstruction for IRT-4M fuel assemblies in coupled Monte-Carlo calculations 

      Autor: Jíška, Pavel; Frýbort, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Current efforts to develop high-fidelity multi-physics tools for research reactors with IRT-4M fuel leads to the involvement of Monte-Carlo transport and subchannel thermo-hydraulic codes in the process of safety assessment. ...

    • Spectrometry of neutron field based on p(20)+Be source reaction 

      Autor: Kozic, Ján; Štefánik, Milan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The research deals with a spectrometry of neutron field based on the p(20)+Be source reaction. The p(20)+Be interaction stands for a nuclear reaction where protons accelerated to energy of 20 MeV bombard Be target. Produced ...

    • On the ongoing computation of the LVR-15 reactor fuel burnup 

      Autor: Pinta, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Isotopic composition of the LVR-15 reactor fuel changes significantly during the operation time. In order to enable Monte Carlo calculations of the LVR-15 core throughout any reasonable time period, the isotopic compositions ...

    • Determination of radionuclide impurities in pure beta radiation sources by semiconductor spectrometry 

      Autor: Novotný, Pavel
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      In many applications, the radionuclidic purity of a radioactive substance is a crucial property. It involves, for example, the production of radiopharmaceuticals or reference standards used in metrology. However, the ...

    • Reactor criticals and spent fuel systems similarities 

      Autor: Šikl, Matěj
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Many conservative assumptions for subcriticality assessment calculations have to be made in current calculations of spent fuel storage systems. This is due to a fact that there is no available database of benchmarks ...

    • Degradation of Cr-coated cladding under the simulated Loss-of-Coolant Accident phenomena 

      Autor: Červenka, Petr; Krejčí, Jakub; Cvrček, Ladislav; Manoch, František; Chalupová, Adéla; Halodová, Patricie; Gávelová, Petra
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The present study focuses on the evaluation of the mechanical properties degradation of Cr-coated Zr-alloy fuel cladding. The main objective of the work is to find a suitable methodology to evaluate the mechanical properties ...

    • The characterization of the collimated beams of fast neutrons with the clid detection system 

      Autor: Ansorge, Martin; Novák, Jan; Majerle, Mitja; Kozic, Ján
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      A new detection device for the measurements of light ions (p, d, t, α) emitted as the products of the nuclear reactions induced by fast neutrons (5-33 MeV) was recently developed at the Nuclear Physics Institute of the ...

    • Modelling of fission gas release in UO2 doped fuel using transuranus code 

      Autor: Gonzalez, Jheffry; Ševecek, Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The expected benefits from Cr-doped fuel are improved retention of fission gases within the pellets due to its large grain size. To demonstrate this, several experiments have been carried out by Halden reactor and Studsvik. ...

    • SUBSALS: a subchannel thermal-hydraulic code for IRT type fuel analysis 

      Autor: Adámek, Tomáš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The LVR-15 research reactor is operated with a tube type fuel IRT-4M. Due to fuel’s unique concentric square annular shape with, coolant flow is subject to significant pressure driven crossflow. Detailed calculation of ...