Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

ISIDA Software System for Providing a Constants Base for the Nuclear Facility Calculations

12/20/2024 2024 - #04 Modelling processes at nuclear facilities

Panova D.V. Dyachenko Y.V. Zabrodskaya S.V. Manturov G.N. Peregudov A.A. Semenov M.Y. Sokol T.P.

DOI: https://doi.org/10.26583/npe.2024.4.13

UDC: 539.172.4

Since the 1960s, activities have been under way at IPPE JSC to provide a constants base for the calculated safety justification of reactor plants for different applications.

A topical issue nowadays is introduction of the ROSFOND-2020.2 and ABBN-RF22 reactor constants bases, as well as of tools for their preparation, verification and validation.

The paper describes the ISIDA software system, which allows one to provide quick access to nuclear data bases and numerical values, and graphic representations of information available in data bases, both directly in the process of their generation and when comparing these with the existing similar data on current versions of global evaluated nuclear data libraries (ENDF/B, JENDL, JEFF, TENDL, CENDL, and others).

Building a new software system for providing constants for calculating the neutronic performance of reactors and the closed nuclear fuel cycle allows resolving a number of essential issues involved in preserving the estimated and experimental data on nuclear cross-sections and their processing methods accumulated in the course of many years.

The ISIDA software system supports the functionality for the graphic data analysis, which is required to investigate the applicability of neutron data files for preparing systems of constants for specific user applications.

With the aid of the software system described in the paper, the user can form (using the NJOY and/or GRUCON processing codes) and evaluate the systems of new reactor constants based on the built-in “Library Testing” algorithm.

The key result of the ISIDA software system development is the establishment of new reactor constant systems for fast reactor calculations and, as a consequence, a better accuracy of reactor performance predictions thanks to a smaller constant component of error.

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ABBN ISIDA ROSFOND software system reactor constants point wise data group constants

Link for citing the article: Panova D.V., Dyachenko Y.V., Zabrodskaya S.V., Manturov G.N., Peregudov A.A., Semenov M.Y., Sokol T.P. ISIDA Software System for Providing a Constants Base for the Nuclear Facility Calculations. Izvestiya vuzov. Yadernaya Energetika. 2024, no. 4, pp. 155-167; DOI: https://doi.org/10.26583/npe.2024.4.13 (in Russian).

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