Japanese Evaluated Nuclear Data Library (JENDL)

Abstract

Three versions of Japanese Evaluated Nuclear Data Library (JENDL) are briefly explained. The first version, JENDL-1, was made aiming mainly at application to fast reactors. The second version, JENDL-2, was built as a bigger general purpose evaluated nuclear data library. It stores nuclear data for 181 nuclides. It has, however, some drawbacks particularly for fusion neutronics calculation. To remove these drawbacks of JENDL-2 and further extend its applicability, the third version, JENDL-3, has now been made. JENDL-3 includes photon-production data for some nuclides, in addition to the data contained in JENDL-2.

JENDL: Nuclear databases for science and technology

“…As mentioned in Section 1, the members of JNDC made a lot of efforts to produce JENDL-1 [5], and it was finally released in 1977. The Nuclear Data Center (NDC) of the Japan Atomic Energy Agency (JAEA, the former JAERI) has continued to update the libraries.…”

“…The Nuclear Data Center (NDC) of the Japan Atomic Energy Agency (JAEA, the former JAERI) has continued to update the libraries. Table 1 gives the features of the JENDL general-purpose libraries, i.e., JENDL-1 [5], JENDL-2 [15], JENDL-3.0 [16], JENDL-3.1 [17], JENDL-3.2 [18], JENDL-3.3 [19], and JENDL-4.0 [6]. The incident energy range is 10 −5 eV to 20 MeV except for JENDL-1.…”

“…Nuclear data were required to analyze the critical experiments for fast reactors, and it was felt by the reactor specialists that such basic data should not depend on foreign countries. After making much effort, the first version of JENDL general-purpose library (JENDL-1 [5]) was released in 1977. The generalpurpose libraries have been updated periodically by considering the latest knowledge on experimental and theoretical nuclear physics that was available at the time of the updates.…”

Análise e impacto das matrizes de covariância de dados nucleares com efeitos de auto blindagem em parâmetros integrais de reatores nucleares

“…A bibliotecas que serão o foco do nosso estudo são ENDF/B e JENDL. Serão consideradas as versões particulares destas, que são ENDF/B -VII.0 [19] e JENDL -3.3 [26] visto que ambas apresentam características importantes para o desenvolvimento da metodologia de cálculo propostas nessa tese. As bibliotecas apresentam estruturas internas, ou seja, sub-bibliotecas que sistematiza todas informações nucleares de um nuclídeo.…”

“…Os dados destes arquivos não foram completamente publicados sobre todos os nuclídeos de interesse para a engenharia nuclear. No mesmo período surgiu a biblioteca JENDL-1 [26] com um total de 72 nuclídeos, mas sem os dados de covariâncias.…”