The updated version of the Chinese Evaluated Nuclear Data Library (CENDL-3.1) and China nuclear data evaluation activities Ge Zhigang, Yu Hongwei, Zhuang Youxiang, Liu Tingjin, Zhang Jingshang, Liu Ping, Huang Xiaolong, Zhao Zhixiang and Xia Haihong Published online: 17 June 2008 DOI: 10.1051/ndata:07570