Xu Dazhe(L), head of China Atomic Energy Authority (CAEA) attends a press briefing at the fourth Nuclear Security Summit at the Walter E. Washington Convention Center in Washington, D.C., the United States on April 1, 2016. China stands ready to make good use of a new nuclear security center to enhance bilateral and multilateral cooperation in the field of nuclear security, Xu Dazhe said here Friday. [Photo: Xinhua]