EDN: BTKEHZ
Authors & Affiliations
Valekzhanina E.I., Gumennykh E.A., Demyanov S.A., Kaigorodov A.A., Kartanov S.A., Pluzyan K.G., Safiulina I.A., Utkin D.S.
Federal State Unitary Enterprise Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics, Sarov, Russia
Valekzhanina E.I. – Lead Engineer. Contacts: 37, Mira ave., Sarov, Nizhniy Novgorod region, Russia, 607188. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Gumennykh E.A. – Senior Researcher.
Demyanov S.A. – Researcher.
Kaigorodov A.A. – Leading Researcher, Cand. Sci. (Phys.-Math.).
Kartanov S.A. – Head of Department, Cand. Sci. (Phys.-Math.).
Pluzyan K.G. – Head of Laboratory.
Safiulina I.A. – Engineer.
Utkin D.S. – Engineer.
Abstract
At the FKBN-3 complex, FSUE RFNC-VNIIEF regularly conducts benchmark experiments with model multiplication systems (RS) in order to validate libraries of nuclear-physical constants and calculated neutron characteristics of various nuclear devices. Examined RS can be assembled from alternating hemispherical parts of different sets of fissile and inert materials. At the end of the experiment, a detailed model of the test assembly is formed for subsequent comparison of the calculated and experimental neutron characteristics. The neutron characteristics of test assemblies are calculated in the C-007 program, which implements the Monte Carlo method, using various libraries of nuclear-physical constants. The wide variety of hemispherical parts and tooling, as well as the careful reproduction of the real geometry of the parts and their placement relative to each other in the calculation file, requires considerable time and effort.
To simplify the work on creating files with detailed calculation models of WS, which can be recognized by the С-007 calculation program, special software has been created, which includes a database of compositions and mass and dimensional characteristics of parts from which WS are assembled at the FKBN-3 complex. The software presented in the report allows the user to generate files with calculated PC models and run them for calculation, without requiring knowledge of the syntax and rules for generating initial data for tasks. The calculation model can be either complete, taking into account the experimental hall and stand FKBN-3, or simplified for assessing the effect of the environment on the reactivity of the RS.
The article uses minimal information from the theory of Markov processes and provides all the necessary definitions.
Keywords
benchmark, nuclear-physical constants, validation, multiplication systems, Monte Carlo method, calculation model
Article Text (PDF, in Russian)
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UDC 621.039+004.942
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2025, no. 4, 4:6
