Results 11 to 20 of about 994 (153)

Application of the Source-Jerk method using a neutron generator in a subcritical reactor

Acta Polytechnica, 2023
This paper describes the application of the Source-Jerk method using a neutron generator in the VR-1 reactor. The experiments were carried out on a shutdown reactor with subcriticality greater than -10 βeff.
Jan Rataj, Jakub Mátl, Pavel Suk
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Measurement of prompt gamma field above the VR-1 water level [PDF]

EPJ Web of Conferences, 2021
Pool-type reactors are an excellent source of high energy photons without neutrons because the water above fuel acts as an outstanding neutron shielding, whereas for high energy photons, it is nearly transparent.
Czakoj Tomáš, Košťál Michal, Matěj Zdeněk, Losa Evžen, Šimon Jan, Mravec Filip, Cvachovec František   +6 more
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Spectral averaged cross sections as a probe to a high energy tail of 235U PFNS [PDF]

EPJ Web of Conferences, 2023
The systematic evaluations of spectrum averaged cross sections of dosimetric reactions over a broad range of energies were performed in 252Cf (spontaneous fission) and 235U(nth,f) neutron fields.
Schulc Martin, Kostal Michal, Capote Roberto, Simon Jan, Czakoj Tomas, Novak Evzen   +5 more
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Conversion Analyses for the VR-1 Reactor [PDF]

, 2005
At The request of the Czech Technical University in Prague, ANL has performed independent verification calculations using the MCNP Monte Carlo code for three core configurations of the VR-1 reactor: a current core configuration B1 with HEU (36%) IRT-3M fuel assemblies and planned core configurations C1 and C2 with LEU (19.7%) IRT-4M fuel assemblies ...
N. Hannan, J. Matos, J. Stillman, A. Olson, P. Garner   +4 more
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Calculation and measurement of Al prompt capture gammas above water in a pool-type reactor

Nuclear Engineering and Technology, 2022
Prompt capture gammas are an important part of the fission reactor gamma field. Because some of the structural materials after neutron capture can emit photons with high energies forming the dominant component of the gamma spectrum in the high energy ...
Tomáš Czakoj, Michal Košťál, Evžen Losa, Zdeněk Matěj, Jan Šimon, Filip Mravec, František Cvachovec   +6 more
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Neutron imaging on the VR-1 reactor

Journal of Physics: Conference Series, 2016
Training reactor VR-1 is a low power research reactor with maximal thermal power of 1 kW. The reactor is operated by the Faculty of Nuclear Science and Physical Engineering of the Czech Technical University in Prague. Due to its low power it suits as a tool for education of university students and training of professionals.
J Crha, L Sklenka, J Soltes
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Measurements of 235U(nth,f) Spectrum Averaged Cross Sections (SACS) in zero power reactors [PDF]

EPJ Web of Conferences
This paper deals with the measurement of Spectrum Averaged Cross Sections in two different neutron fields formed in zero power reactors. The first was Benchmark Neutron Reference Field in the LR-0 reactor, and the second field was in the center of the ...
Košťál Michal, Losa Evžen, Czakoj Tomáš, Bílý Tomáš, Schulc Martin, Juříček Vlastimil, Šimon Jan, Mareček Martin, Uhlíř Jan, Krechlerová Alena, Simakov Stanislav, Trkov Andrej, Capote Roberto   +12 more
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Kinetics analysis of spiral automatic circulation anaerobic reactor

浙江大学学报. 农业与生命科学版, 2009
The kinetic characteristics of spiral automatic circulation (SPAC) anaerobic reactor were investigated. Base on material balance, the relationship between the volumetric removal rate and the effluent concentration was established and analyzed by the ...
WANG Cai-hua, ZHENG Ping, CHEN Jian-wei, TANG Chong-jian, YU Yi   +4 more
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Development of a Neutron Imaging Facility at the Very Low Power Reactor VR-1

Journal of Physics: Conference Series, 2023
Abstract The paper describes the design and construction of a new neutron imaging facility at the very low-power research reactor VR-1. Neutron imaging has been under development at the VR-1 reactor as a new possible field of utilisation since 2020.
J Matouskova, B Schillinger, L Sklenka
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DIAMOND DETECTORS FOR FAST TRANSIENT SCRAM MEASUREMENTS – THE DETECTOR DEVELOPMENT

Acta Polytechnica CTU Proceedings, 2019
This paper presents a development of special diamond detector for time dependent neutron flux measurements in a nuclear reactor. Neutron flux changes during SCRAM are difficult to measure by existing detector technologies.
Ondřej Novák, Lubomír Sklenka, Michal Pomorski, Clement Lynde   +3 more
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