CENDL-3.2: The new version of Chinese general purpose evaluated nuclear data library

Zhigang Ge,Ruirui Xu,Guochang Chen,Yue Zhang,Yongli Jin,Jing Qian,Jimin Wang,Yuan Tian,Haicheng Wu,Nengchuan Shu,Huanyu Zhang,Yongjing Chen,Ping Liu,Xiaolong Huang,Lile Liu,Xi Tao

doi:10.1051/epjconf/202023909001

Zhigang Ge, Ruirui Xu + Show 14 more

Open Access

https://doi.org/10.1051/epjconf/202023909001

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Abstract

A new version of Chinese Evaluated Nuclear Data Library, namely CENDL-3.2, has been completed under the joint efforts of CENDL working group. This library is constructed with the general purpose to provide high-quality nuclear data for the modern nuclear science and engineering. 272 nuclides from light to heavy are covered in CENDL-3.2 in total and the data for 134 nuclides are new or updated evaluations in energy region of 10-5 eV-20 MeV. The data of most of the key nuclides in nuclear application like U, Pu, Th, Fe et al. have been revised and improved, and various evaluation techniques have been developed to produce the nuclear data with good quality. Moreover, model dependent covariances data for main reaction cross sections are added for 70 fission product nuclides. To assess the accuracy of CENDL-3.2 in application, the data have been tested with the criticality and shielding benchmarks collected in ENDITS-1.0.

Highlights

Motivated by fulfilling the increasing requirement of users from diversified nuclear applications, the CENDL project has been initiated under the joint collaboration of CENDL working group, namely China Nuclear Data Center (CNDC) and the Chinese Nuclear Data Cooperation Network (CNDCN) since 1970s
In the evaluation process, according to the status of available experimental data, including the recently measurements performed by CNDCN, various methods based on the phenomenological and microscopic theoretical models and some empirical approaches are applied to deal with different cases from the light nuclides to the heavy nuclides
Compared with the previous CENDL libraries, the current CENDL project aims to build a new complete nuclear data library constituted by the nuclear reaction data of neutron and charged particles, photonuclear data, fission yield, decay and activation files

Summary

Introduction

Motivated by fulfilling the increasing requirement of users from diversified nuclear applications, the CENDL project has been initiated under the joint collaboration of CENDL working group, namely China Nuclear Data Center (CNDC) and the Chinese Nuclear Data Cooperation Network (CNDCN) since 1970s. Based on the collaboration of measurements and evaluations, a series versions of CENDL including CENDL-1.0 (1985), CENDL-2.0 (1993) [1], CENDL-3.0 (2000) [2] and CENDL-3.1 (2009) [3] had been released, which to provide evaluated neutron reaction data from light to heavy nuclides in the past. CENDL-3.2 benefits from the international collaborative such as NRDC network, IAEA/CRPs, OECD/WPEC Subgroups et al. In the evaluation process, according to the status of available experimental data, including the recently measurements performed by CNDCN, various methods based on the phenomenological and microscopic theoretical models and some empirical approaches are applied to deal with different cases from the light nuclides to the heavy nuclides.

Light nuclides

Medium-heavy nuclides

Fission nuclides

Validations and Application

Conclusion and Perspective