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Exploratory Data Analysis of the EXFOR Database
Emmeric Dupont,Arjan J. Koning,Naohiko Otuka 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
The EXFOR database is a large collection of experimental nuclear reaction data for incident neutrons, charged particles and photons. The EXchange FORmat was designed to be very flexible in order to be able to store the data as published. However, this flexibility is a drawback for systematic comparison of EXFOR data with evaluated data or nuclear reaction code results. The WPEC Subgroup 30 on ``Improvement of Accessibility and Quality of the EXFOR Database'' was founded with the aims to establish EXFOR as a more easily accessible and reliable database. In this framework, a directory-structured database was created in simple tabular format. The content of this database was verified with various statistical tests and compared with default results from the TALYS code. This work allowed various problems to be identified, either in the EXFOR translating codes or in the EXFOR database, and sometimes in the original publications.
Recent Upgrades to the Nuclear Data Tool JANIS
Nicolas Soppera,Manuel Bossant,Emmeric Dupont,Hans Henriksson,Yolanda Rugama 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
JANIS (JAva-based Nuclear Information Software) is a display program designed to facilitate the visualisation of nuclear data, such as decay data, fission yields, cross sections, energy and angular distributions etc. Its objective is to allow the user of nuclear data to access numerical and publication-ready graphical representations without prior knowledge of the storage format. The most common nuclear data formats are supported, and data originating from the major evaluated libraries, such as JEFF, JENDL, ENDF/B, CENDL etc., can be displayed, computed, and compared together and with experimental reaction data from the EXFOR database. In addition, various navigation and search tools are available to explore the nuclear databases. The JANIS software can be used either as a standalone application or directly from the web at www.nea.fr/janis. This software has developed into a popular tool among students and researchers working with nuclear data. Features included in the latest release are described, including plots of covariance matrices and photon-production data. Some examples on the use of JANIS will be given and foreseen development discussed.