EDN: LOBYIA
Authors & Affiliations
Egorov G.O.1, Manturov G.N.1, Peregudov А.А.1, Panova D.V.1, Slyunyaev M.N.1, Tykleeva K.V.1, Filippova A.S.1, Nikolaev A.A.2, Tarasov A.Yu.2, Skobelev A.N.2, Yurin V.A.2
1 National Research Center “Kurchatov institute”, Moscow, Russia
2 A. Tsyb Medical Radiological Research Center, Obninsk, Russia
3 National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation, Moscow, Russia
Egorov G.O.1 – Research Engineer. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (484) 399-70-00 (43-67); e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Manturov G.N.1 – Chief Researcher Dr. Sci. (Tech.).
Peregudov А.А.1 – Head of Department.
Panova D.V.1 – Junior Researcher.
Slyunyaev M.N.1 – Junior Researcher.
Tykleeva K.V.1 – Researcher.
Filipova A.S.1 – Research Engineer.
Nikolaev A.A.2 – Deputy Head of Department.
Tarasov A.Yu.2 – Design Engineer 1st Category.
Skobelev A.N.2 – Design Engineer 1st Category.
Yurin V.A.2 – Design Engineer 3rd Category.
Abstract
This work presents description of multi-group NP200/47 (200 neutron groups and 47 photon groups) and multi-group NP48/20 (48 neutron groups and 20 photon groups) matxs-libraries obtained based on a new version of the Russian library of nuclear data ROSFOND-2020.2, processed by using the code NJOY-16.74.
The created matxs-libraries of group constants are tested in calculations by using the TRANSX 2.15 program in conjunction with the DSN code TWODANT. Testing is performed in the calculations of a series of benchmark critical experiments from the International Handbook of Criticality Safety Benchmark Experiments (ICSBEP). Comparative calculations were performed in the group approach with the use of the CONSYST/BNAB-RF-2020.2 code in conjunction with the MMKKENO code (299 groups, P5-approximation of the scattering law), and with the ROSFOND-2020.2 data in the ACE format in conjunction with the MCNP5 code.
For a one-dimensional test model of radiation shielding, calculations of the spatial distribution of neutron and photon radiation fields were performed by using the designed group matxs-libraries in comparison with calculations in the group approach with the use of the CONSYST/BNAB-RF-2020.2 code but also with the use of detailed cross-section energy dependencies and codes MCNP5 and TDMCC.
The results of work are aimed at providing the computational substantiation of design, operation and safety of fast reactors with lead-bismuth coolant at the advanced scientific and technical level on the basis of the national library of nuclear data ROSFOND-2020.2.
Keywords
group constants, matxs-libraries, nuclear data, test calculations, ROSFOND-2020.2, TRANSX, TWODANT, MCNP, MMKKENO, TDMCC
Article Text (PDF, in Russian)
References
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UDC 621.039.51.17
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2025, no. 2, 2:11
