Results 141 to 150 of about 69,074 (188)

New Control System of VR-1 Training Reactor

Volume 2: Nuclear Policy; Nuclear Safety, Security, and Cyber Security; Operating Plant Experience; Probabilistic Risk Assessments; SMR and Advanced Reactors, 2020
Abstract The VR-1 training reactor with 500W maximum power operates at the Czech Technical University in Prague. Its control system was approaching obsolescence. It was therefore decided to upgrade the control system using up-to-date hardware and software using a new industrial PC with Windows 10 and the RTX real time system. The control
Martin Kropík, Jan Rataj, Ladislav Reisner, Jiri Matousek   +3 more
openaire   +1 more source

Investigation of Buddhist and Bon votive statues at the Very low power reactor VR-1

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
The nuclear analytical techniques are excellent tools for the investigation in various research disciplines, i.e. cultural heritage preservation, archaeology or anthropology.
Jana Matoušková, Lubomir Sklenka, Burkhard Schillinger   +2 more
openaire   +2 more sources

Software for protection system of VR-1 training reactor

Journal of Systems and Software, 2010
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.
Martin Kropik, Monika Jurickova
openaire   +1 more source

Equipment for neutron measurements at VR–1 Sparrow training reactor

Applied Radiation and Isotopes, 2010
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
Antonin, Kolros, Ondrej, Huml, Martin, Kríz, Josef, Kos   +3 more
openaire   +2 more sources

Validation of the Fast Neutron Field in the Radial Channel of the VR-1 Reactor

Journal of Nuclear Engineering and Radiation Science, 2020
Abstract This work aims to characterize the neutron spectrum in the beam going out of the university research reactor (VR-1) using tubular-type of the nuclear fuel, version 4M (IRT-4M) fuel. Thanks to its variability, the core is often rearranged to fulfill different research tasks.
Evžen Losa, Michal Košťál, Milan Štefánik, Jan Šimon, Tomáš Czakoj, Zdeněk Matěj, František Cvachovec, Filip Mravec, Jan Rataj, Ľubomír Sklenka   +9 more
openaire   +1 more source

Characterization of mixed N/G beam of the VR-1 reactor

Annals of Nuclear Energy, 2018
Abstract VR-1 is light water zero-power reactor using IRT-4 M fuel with nominal enrichment of 19.7 wt%, equipped with the radial channel being directly attached to the fuel. Enrichment at the top level of the low enriched uranium limit guarantees that the larger part of non-scattered neutrons in the spectrum is coming from 235U than in case of ...
Michal Košťál, Evžen Losa, Zdeněk Matěj, Vlastimil Juříček, Davit Harutyunyan, Ondřej Huml, Milan Štefánik, František Cvachovec, Filip Mravec, Martin Schulc, Tomáš Czakoj, Vojtěch Rypar   +11 more
openaire   +1 more source

Experimental studio data acquisition system at VR-1 reactor

2016 17th International Scientific Conference on Electric Power Engineering (EPE), 2016
The VR-1 reactor is operated by the Czech Technical University in Prague more than 20 years. The reactor is utilized mainly for education and training purposes. Therefore, the Czech Technical University, as a reactor licensee, makes an effort to continuously improve the reactor equipment, instrumentation and the educational and training methodologies ...
Jan Rataj, Lubomir Sklenka, Filip Fejt, Ondrej Huml   +3 more
openaire   +1 more source

Investigation of mammoth remains using the neutron activation analysis at the Training Reactor VR-1

Applied Radiation and Isotopes, 2020
At the time when the importance of the interdisciplinary research increases, the nuclear analytical techniques supported by the small research reactors represent a useful tool for investigation of human society, culture, history etc. The historical, archaeological, and palaeontological samples and objects of cultural heritage can be easily studied ...
Milan Stefanik, Sandra Sazelova, Lubomir Sklenka   +2 more
openaire   +2 more sources

Determination of the effective delayed neutron fraction for training reactor VR-1

Progress in Nuclear Energy, 2010
Abstract This paper describes a methodology of effective delayed neutron fraction (βeff) determination for the VR-1 training reactor located at the Czech Technical University (CTU) in Prague. The methodology contains both experimental and computational elements.
Svetozár Michálek, Stanislav Števo, Gabriel Farkas, Ján Haščík, Vladimír Slugeň, Ján Rataj, Antonín Kolros   +6 more
openaire   +1 more source

Calibration of new I&C at VR-1 training reactor

Nuclear Engineering and Design, 2011
The paper describes a calibration of the new instrumentation and control (I&C) at the VR-1 training reactor in Prague. The I&C uses uncompensated fission chambers for the power measurement that operate in a pulse or a DC current and a Campbell regime, according to the reactor power.
Martin Kropik, Monika Jurickova
openaire   +1 more source