Speaker
Description
EXFOR (EXchange FORmat) database contains experimental nuclear reaction data compiled by the NRDC (Nuclear Reaction Data Centers) network. The network strictly regulates data format, rules of compilation, distribution of work and data exchange between data centers. The data dissemination is not regulated by the network - this includes output data formats, various database services, software distribution, etc. The IAEA provides EXFOR data services through Web retrieval system, standalone packages (with local database and software) for different tasks and computer environment, and plain data files for Web downloading.
New tasks in data evaluation requiring all details of experiments, growing users’ programming skills and achievements in computer technologies need new methods of access to EXFOR data and distribution. Some of them are presented here:
- X4Lite: full EXFOR relational database implemented in modern database management system SQLite, including computational data in JSON table fields and distributed as platform independent single file for PC
- EXFOR data correction system: includes automatic re-normalization to new monitor cross sections and decay data, database experts’ corrections and evaluators’ quality flags available online
- X4-JSON/XML: output from EXFOR retrieval systems in JSON and XML, easy for use in modern programming languages: Python, JavaScript, etc.,
- XC5: EXFOR translated to computational format with possibility to renormalize data to new standards, to generate correlation matrix using partial uncertainties, to calculate cross sections of inverse reaction, etc.
The new tools can be useful for data evaluators, developers of machine learning software and other automatization computer systems, can also encourage young generation of users to use EXFOR data in various projects.