The updated version of the Chinese Evaluated Nuclear Data Library (CENDL-3.1) and China nuclear data evaluation activities

Chinese Evaluated Nuclear Data Library third version (CENDL-3.1) contains the nuclear data evaluated works which were performed during the period of 1995-2005 at China Nuclear Data Center (CNDC) in cooperation with the China Nuclear Data Coordination Network (CNDCN), including the neutron data for about 200 nuclides in ENDF/B-6 format in energy region of 10 −5 eV - 20MeV. For the most important nuclei the comparisons with other nuclear data libraries (ENDF, JENDL, BROND, JEFF...) have been performed, and the benchmark testing for the most important nuclei also have been done. CNDC and CNDCN also have got a lot of progress in the fields of nuclear data theory study, model and code developments, and nuclear database establishment, etc. The status of CENDL-3 and some progress of the nuclear data evaluation studies in the past several years will be introduced in this presentation.