中国先进研究堆中子科学平台发展现状及展望

Current Status and Future Prospect of Neutron Facilities at China Advanced Research Reactor

依托中国先进研究堆(CARR)高通量中子源,建成了初具规模的中子科学平台,具备中子散射、中子成像和中子活化分析等多种研究技术。其中,中子散射技术包括中子衍射、小角中子散射及中子反射、非弹性中子散射,可以用于分析材料微观结构和动力学性质;热中子成像和冷中子成像可以用于材料内部缺陷等无损检测;中子活化分析系统可以用于物质内核素成分分析。目前已建成和在建中子谱仪共计19台,并初步配备了样品环境装置,为相关应用研究提供了条件基础,可为我国物理、化学、材料科学、生命科学、能源和环境等领域基础研究及工业应用提供重要技术支撑。CARR中子科学平台始终坚持合作共享对外开放的宗旨,将继续为国内外用户提供优质中子技术,服务基础科学前沿和国家重大创新需求研究。

Neutron research facilities have been built on the high flux neutron source China Advanced Research Reactor(CARR), of which different kinds of neutron techniques,including neutron scattering,neutron imaging and neutron activation analysis,are now available.The neutron scattering instruments,including neutron diffractometers,small-angle neutron scattering,neutron reflectometer,inelastic neutron scattering spectrometers,can be used to analyze the microstructure and dynamic properties of materials.The thermal neutron imaging and cold neutron imaging facilities can be used for the non-destructive testing of defects inside materials.And neutron activation analysis systems are powerful for the detection of different elements or isotopes.There are now 19 neutron instruments which have been built or under construction.Some sample environment devices are also available.These facilities provide important support for both fundamental scientific researches and industrial applications in the fields of physics,chemistry,material science,life science,energy,environment and so on.CARR neutron research facilities will continue to open to the users from outside the institute,to not only serve scientific frontier researches,but also meet the major national innovation needs.