Current and future neutron-scattering development in CIAE.

Currently, the 15-MW Heavy Water Research Reactor (HWRR) at the China Institute of Atomic Energy (CIAE) in Beijing is the only neutron source available for neutron-scattering experiments in China. A 60-MW tank-in-pool inverse neutron trap-type research reactor, the China Advanced Research Reactor (CARR), is now being built at CIAE to meet the increasing demand of neutronscattering research in China. According to the design, the maximum unperturbed thermal neutron flux is expected to be 8 × 10[sup 14]n/cm²s in the reflector region. Seven out of nine tangential horizontal beam tubes will be dedicated for neutron-scattering experiments. A cold source, a hot source and a 30 × 60 m² guide-tube hall will also be constructed. In this paper, a brief introduction to HWRR, the existing neutron-scattering facilities and research activities at HWRR, CARR and the facilities to be built at CARR are presented. [ABSTRACT FROM AUTHOR]