Development of neutron scattering on 60 MW research reactor in CIAE

At present, the 15 MW Heavy Water Research Reactor (HWRR) at China Institute of Atomic Energy (CIAE) in Beijing is the only neutron source available for neutron-scattering research in China. A 60 MW tank-in-pool inverse neutron trap-type research reactor, China Advanced Research Reactor (CARR), now is being built at CIAE in Beijing to meet the increasing demand of neutron-scattering research in China. The maximum unperturbed thermal neutron flux would be expected to be 8x1014 n cm-2 s-1 in the reflector. Seven tangent horizontal beam tubes will be used for neutron scattering experiments. A cold source and a 30x60 m2 guide hall will be constructed. In this paper, a brief introduction of HWRR, the existing neutron-scattering facilities and research activities at HWRR, and the facilities to be built at CARR are presented