Results 1 to 10 of about 481,445 (303)

Criticality of fuel-containing materials in the “Shelter” object [PDF]

open access: yesЯдерна фізика та енергетика
The article presents the results of the analysis of the validity of simplifications and assumptions accepted by researchers in the models of neutron-physical characteristics of fuel-containing materials (FCM) in the "Shelter" object (SO).
V. I. Borysenko   +2 more
doaj   +2 more sources

Stochastic simulation of destruction processes in self-irradiated materials [PDF]

open access: yesCondensed Matter Physics, 2017
Self-irradiation damages resulting from fission processes are common phenomena observed in nuclear fuel containing (NFC) materials. Numerous α-decays lead to local structure transformations in NFC materials.
T. Patsahan   +4 more
doaj   +3 more sources

On material and energy sources of formation of fuel-containing materials during Chernobyl NPP UNIT 4 accident [PDF]

open access: yesЯдерна фізика та енергетика, 2016
Results of detailed analysis of material substance of lava-like fuel-containing materials sources (FCM) and clusters with high uranium concentration were presented.
O. V. Mikhailov
doaj   +2 more sources

Dose and temperature distribution in spent fuel containing material [PDF]

open access: yesEPJ Nuclear Sciences & Technologies, 2016
Spent fuel containing material (SFCM) can arise during severe nuclear reactor accident by melting of a reactor core and surrounding material (corium) or during accident in spent fuel storage.
Viererbl Ladislav   +4 more
doaj   +2 more sources

3D continuum percolation approach and its application to lava-like fuel-containing materials behaviour forecast [PDF]

open access: yesCondensed Matter Physics, 2009
The paper is devoted to the theoretical study of elementary permeable objects percolation and its application to real physical objects. Spheres and isotropic oriented capped sticks were chosen as elementary geometrical objects for percolation simulation,
V.O. Zhydkov
doaj   +3 more sources

Phase composition of brown ceramics of lava-like fuel-containing materials of the object “Shelter” ChNPP

open access: yesЯдерна фізика та енергетика, 2019
Using the X-ray diffraction method, the phase content of brown ceramics of lava-like fuel-containing materials of the “New Safe Confinement – Shelter Object” Complex was investigated.
S. V. Gabielkov   +6 more
doaj   +2 more sources

On the origin of metal impurities in content of lava-like fuel-containing materials of Chornobyl NSC-Shelter object

open access: yesЯдерна фізика та енергетика, 2017
Version of the origin of material metallic impurities in silicate matrix of lava-like fuel-containing masses (LFCM), which were formed during the Chernobyl Unit 4 accident, is presented.
O. V. Mikhailov
doaj   +2 more sources

The nuclear safety monitoring system for fuel-containing materials located in destroyed unit No. 4 of the Chornobyl NPP and proposals for its modernization [PDF]

open access: yesЯдерна фізика та енергетика, 2022
The paper presents a brief description of the Nuclear Safety Monitoring System (NSMS), which is a part of the Integrated Automated Monitoring System of the "Shelter" object (a facility that covers the destroyed Unit No. 4 of the Chornobyl NPP).
M. V. Saveliev   +4 more
doaj   +1 more source

Long-term temperature dynamics at the peripherals on nuclearly hazardous clusters of fuel-containing materials located in room 305/2 of the "Shelter" object before and after new safe confinement installation into a design position

open access: yesЯдерна фізика та енергетика, 2022
A brief overview of data of automated temperature monitoring systems at the periphery of nuclearly hazardous clusters of fuel-containing materials (FCM NHC) and analytical materials regarding the study of its dynamics at various monitoring points before ...
O. V. Mykhailov   +3 more
doaj   +1 more source

Reactor criticals and spent fuel systems similarities

open access: yesActa Polytechnica CTU Proceedings, 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 containing spent fuel or materials ...
Matěj Šikl
doaj   +1 more source

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