Center for High Resolution Neutron Scattering (CHRNS)

该奖项将在美国国家标准与技术研究所(NIST)的冷中子引导大厅设施中建立一个由NSF赞助的新的中子散射用户设施。这些仪器非常适合多学科中子散射界的需要，并为高分辨率研究几乎所有类别的材料的微观结构和动力学提供了平衡的现代中子散射仪器的横截面。它们包括(1)具有偏振光束能力的高分辨率小角散射谱仪(SANS)，以及(2)使用超镜偏振器和“Drabkin”鳍状物的自旋极化非弹性中子散射谱仪(SPINS)。后一种工具的费用由NSF和NIST资金各占一半。SANS仪器对材料科学、凝聚态物理和化学物理、材料化学和聚合物科学领域的研究人员特别有吸引力。建议的仪器是最先进的设备，在这个国家是无与伦比的，将与世界上最好的设备竞争。它们将作为用户设施运行，并由外部计划咨询委员会分配实验。

This award will establish a new NSF sponsored user facility for neutron scattering at the National Institute of Standards and Technology (NIST) Cold Neutron Guide Hall Facility. The instruments are well suited to the needs of the multidisciplinary neutron scattering community, and offer a well-balanced cross section of modern neutron scattering instrumentation for high resolution studies of the micro-structure and dynamics of virtually all classes of materials. They include (1) a high resolution Small Angle Scattering Spectrometer (SANS) with polarized beam capability, and (2) a Spin Polarized Inelastic Neutron Scattering Spectrometer (SPINS) using supermirror polarizers and a "Drabkin" flipper. The latter instrument is being cost shared 50/50 between the NSF and NIST funding. The SANS instrument is of particular appeal to investigators in the fields of Materials Science, Condensed Matter Physics and Chemical Physics, Materials Chemistry, and Polymers Science. The proposed instruments are state of the art facilities and are unequaled in this country and will be competitive with the best facilities worldwide. They will be operated as a user facility with experiments allocated by an outside Program Advisory Committee.