Izvestia Vysshikh Uchebnykh Zawedeniy. Yadernaya Energetika

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

Converting ENDF libraries into relational format

11/28/2017 2017 - #04 Modelling processes at nuclear facilities

Yuferov A.G.

DOI: https://doi.org/10.26583/npe.2017.4.13

UDC: 621.039.51:539.17:004.652.4

The questions of converting the constants systems in the ENDF format into a relational database are considered. Such conversion may be one of the tools that simplify the development and exploitation of factual information, techniques and algorithms in the field of nuclear data, and consequently, increases the efficiency of the corresponding computational codes. The paper briefly reviewed the infological model of libraries ENDF. Is described the possible structure of the relational tables in the database. The proposed database schema and the form of tables takes into account the presence of both single and multiple properties of the considered isotopes. Is taken into account also the difference of requirements for transmission organization of relational tables into the programs and the organization of the visual analysis of data in the tables physicist appraiser. The algorithms of conversion and the results of conversion in relation to ROSFOND-A libraries and ENDF/B-VII.1 is described. Outlines the advantages of performing calculations directly in the DBMS environment to simplify programming and to exceptions the necessity of solving a number of tasks for verification and validation of data. Some possible approaches to ensure exploitation of legacy software in conjunction with the relational libraries of the constants is listed. Proposed some terminological clarification to facilitate the infological models construction for ENDF format. The conversion programs and library ENDF/B-VII.1-neutrons in the relational format posted on the public site http://178.215.91.20/nd.

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ENDF library conversion relational format