Results 141 to 150 of about 139,180 (187)

Neutron activation analysis of Tibetan traditional medicinal pills at the VR-1 training reactor

Radiation Physics and Chemistry, 2019
Abstract The nuclear analytical methods provide the research techniques usually used in hard sciences such as physics, chemistry, engineering and technology, or natural sciences and technology, but it is very rare to use them in social sciences and humanities. The Czech Technical University (CTU) in Prague operates the VR-1 training reactor primarily
Milan Štefánik, Ľubomír Sklenka, Martin Cesnek, Marcel Miglierini, Jan Rataj   +4 more
semanticscholar   +5 more sources

Study of the parameters of the pulse shape method and experimental test of diamond based detector at the VR-1 reactor

Annals of Nuclear Energy, 2020
Abstract Diamond crystal-based detector for neutron flux measurement is a promising solution as a fast, small and stable detector especially suited for fast transient measurements. The work aims to test the method and to find the best parameters of the pulse shape analysis for the thermal neutron detection. The developed diamond detectors were tested
Ondřej Novák, Ľubomír Sklenka, M. Pomorski, Clément Lynde   +3 more
semanticscholar   +4 more sources

Study of dietary supplements compositions by neutron activation analysis at the VR-1 training reactor

Radiation Physics and Chemistry, 2017
Abstract The VR-1 training reactor operated by the Czech Technical University in Prague is utilized mainly for education of students and training of various reactor staff; however, RD each brand is represented by several different batches of pills. All pills were irradiated together with the standard activation etalons in the vertical channel of the ...
Milan Štefánik, Ján Rataj, Ondřej Huml, Ľubomír Sklenka   +3 more
semanticscholar   +4 more sources

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Validation of the Serpent2 code for the VR-1 reactor core calculation

2020 21st International Scientific Conference on Electric Power Engineering (EPE), 2020
The VR-1 reactor core safety characteristics calculations are performed by standardized MCNP code, however due to license requirements, it is desired to replace it by the Serpent2 code. In order to do that, Serpent2 calculation must be standardized by State office of nuclear safety.
Jan Frybort, Ondrej Novak
openaire   +3 more sources

Measurement of fast neutron spectrum in the radial channel of VR-1 research reactor

Radiation Physics and Chemistry, 2023
Zdeněk Matěj, Michal Košťál, Evžen Losa, Ondřej Huml, Milan Štefánik, Tomáš Bartoň, František Cvachovec, Filip Mravec, Václav Přenosil   +8 more
semanticscholar   +3 more sources

Software for protection system of VR-1 training reactor

Journal of Systems and Software, 2009
The article deals with the software for a new protection system of the VR-1 training reactor which consists of the independent power protection and the operational power measuring systems. Both systems are computer-based, and they are diverse in sensors, hardware and software.
M. Kropík, Monika Jurickova
openalex   +3 more sources

Broomstick experiment with copper in VR-1 reactor

Annals of Nuclear Energy
Michal Košťál, Evžen Losa, Tomáš Czakoj, S.P. Simakov, Marek Zmeškal, Martin Schulc, Jan Šimon, Vojtěch Rypar, Evžen Novák, František Cvachovec, Filip Mravec, Václav Přenosil, Peter Krásný, R. Capote, Zdeněk Matěj   +14 more
semanticscholar   +3 more sources

Equipment for neutron measurements at VR–1 Sparrow training reactor

Applied Radiation and Isotopes, 2009
The VR-1 sparrow reactor is an experimental nuclear facility for training, student education and teaching purposes. The sparrow reactor is an educational platform for the basic experiments at the reactor physic and dosimetry. The aim of this article is to describe the new experimental equipment EMK310 features and possibilities for neutron detection by
Antonín Kolros, Ondřej Huml, Martin Kříž, Josef Kos   +3 more
openalex   +4 more sources

Neutron activation analysis of meteorites at the VR-1 training reactor

Radiation Physics and Chemistry, 2020
Abstract Samples of space objects were characterized using instrumental neutron activation analysis (NAA) combined with conversion electron Mossbauer spectrometry. Fragments of Moldavites, Muonionalusta meteorite and Sikhote-Alin meteorite were irradiated in the thermal neutron field of the low-power VR-1 training reactor operated by the Czech ...
Marcel B. Miglierini, Marcel B. Miglierini, Milan Štefánik, Milan Štefánik, Lubomir Sklenka, Martin Cesnek, Tomáš Kmječ   +6 more
openaire   +3 more sources

Rod drop transient at VR-1 reactor – Experiment and Serpent transient calculation analysis

Annals of Nuclear Energy, 2020
Abstract The rod drop experiment is an important transient in reactor operation. This study focuses on a comparison between experimental reactor physics data and respective calculation. The rod drop experiment was performed at the VR-1 reactor. A full core 3D model was used to calculate this transient using Serpent2.
Ondrej Novak, Lubomir Sklenka, Filip Fejt, Ivan Maldonado, Ondrej Chvala   +4 more
openaire   +3 more sources