The Center for High Resolution Neutron Scattering (CHRNS)

9423101 Glinka该奖项为位于国家标准与技术研究所(NIST)冷中子研究设施(CNRF)的高分辨率中子散射中心(CHRNS)的仪器运行和开发提供持续支持。该项目由NSF和NIST共同资助，旨在为普通科学界提供最先进的冷中子散射仪器。CHRNS仪器可供来自大学、政府和行业的研究人员使用。CHRNS由30米、高分辨率、小角中子散射(SANS)仪器和自旋极化非弹性中子散射(SPINS)能谱仪组成。这一奖项将增加一个新的设施：用于极高分辨率SANS的双晶衍射仪(DCD)。这将扩大30米SANS仪器的上限，使研究人员能够检查从1纳米到10微米的微结构特征。这将提供世界上任何其他中子用户设施都无法提供的能力。SANS仪器有望被凝聚态物理、化学、生物和材料科学的研究人员充分利用。它将使他们能够获得从1到近500纳米尺度的材料的结构信息，这些材料包括聚合物、金属合金、陶瓷、多孔介质结构流体和凝胶、生物大分子和磁性材料。在许多情况下，这种测量无法通过任何其他技术获得。这些仪器将提供这个国家无与伦比的最先进的性能，并将与世界上最好的设备竞争。仪器将在用户模式下运行。建议的审查和选择将由外部计划咨询委员会进行，建议的选择将基于所提议项目的科学价值。***

9423101 Glinka This award provides continuing support for the operation and development of instruments at the Center for High Resolution Neutron Scattering (CHRNS) located at the National Institute of Standards and Technology (NIST) Cold Neutron Reserach Facility (CNRF). This project is funded jointly by NSF and NIST to provide state-of-the-art cold neutron scattering instrumentation for the general scientific community. CHRNS instruments are available to researchers from universities, government, and industry. CHRNS consists of a 30 meter, high resolution, Small Angle Neutron Scattering (SANS) instrument and a Spin Polarized Inelastic Neutron Scattering (SPINS) spectrometer. With this award a new facility will be added: a Double Crystal Diffractometer (DCD) for very high resolution SANS. This will extend the upper size limit of the 30 m SANS instrument to enable researchers to examine microstructural features from 1 nm to 10 micron. This will provide a capability not available at any other neutron user facility in the world. The SANS instrument is expected to be fully utilized by researchers in condensed matter physics, chemistry, biology and materials science. It will enable them to obtain structural information on a scale ranging from 1 to nearly 500 nanomicrometers on materials such as polymers, metal alloys, ceramics, porous media structured fluids and gels, biological macromolecules and magnetic materials. In many cases such measurements cannot be obtained by any other techniques. %%% These instruments will provide state-of-the-art capability unequaled in this country, and will be competitive with the best facilities worldwide. The instruments will be operated in a user mode. Proposal review and selection will be by an external Program Advisory Committee, with proposal selection being based on scientific merit of the projects proposed. ***