Acquisition of a CCD-Based X-ray Diffraction Facility for Earth Science and Chemistry Research at Stony Brook and the NSLS

9724501 Parise 这项拨款是通过主要研究仪器 (MRI) 计划提供的，提供 295,518 美元，作为购买设备成本的一半支持，用于开发模块化、基于 CCD 探测器的 X 射线衍射设施，该设施将与布鲁克海文国家实验室 (BNL) 的国家同步加速器光源 (NSLS)、阿贡国家实验室的先进光子源 (APS) 的两个同步加速器 X 射线源一起使用(ANL) 和实验室 X 射线源。 具体来说，该设备将包括两个 CCD 探测器系统，可以对非常小的单晶和粉末样品进行实时 X 射线衍射研究，这比更传统的基于图像板的 XRD 系统具有显着优势。其中一个 CCD 探测器系统将与翻新的 Rigaku 18 kW 旋转阳极结合使用，该阳极将包含聚焦镜，以提供额外光束和高亮度聚焦光束，用于进一步内部开发最初由 SUNY-SB 矿物物理研究所（CHiPR STC 的一个节点）的研究人员设计的 T 杯高压装置。该模块化系统还可转移到 NSLS 和 APS 上更明亮的 X 射线源，以研究最小的晶体（0.5 - 20 微米）。 第二个系统将缓解 NSLS 对 CHiPR STC 附属的许多博士后、研究生和本科生对光束时间的需求，他们需要对尺寸范围为 20-100 微米的晶体进行 XRD 分析，而当前的实验室 X 射线源和 XRD 探测器系统不足以满足这些要求。 额外的资金将用于购买工作站和大容量存储器，用于分析高分辨率衍射数据以及制造该集成模块化系统所需的辅助设备。 该设备将增强或实现的尖端研究和资助研究的具体例子包括，开发下一代便携式大容量高压单元、陶瓷的强度和流变特性的测定、通过高压阶段确定地震速度的超声波实验期间的结构分析、有机-无机开放框架化合物的结构分析、掺杂富勒烯的粉末衍射研究、固态有机地球化学、海洋沉积物早期成岩过程中形成的低温化合物的表征以及光化学形成的天然化合物的生物医学研究。 ***

9724501 Parise This grant, made through the Major Research Instrumentation (MRI) Program, provides $295,518 as one-half support of the costs of acquiring equipment for development of a modular, CCD detector-based x-ray diffraction facility that will be used in conjunction with both synchrotron x-ray sources at the National Synchrotron Light Source (NSLS), Brookhaven National Lab (BNL), the Advanced Photon Source (APS), Argonne National Lab (ANL) and laboratory x-ray sources. Specifically, the equipment will include two CCD detector systems allowing real time x-ray diffraction studies of very small single crystals and powdered samples, a significant advantage over more conventional image plate-based XRD systems. One of the CCD detector systems will be used in conjunction with a refurbished Rigaku 18 kW rotating anode that will incorporate focusing mirrors to provide an extra beam and a high brightness focused beam for further in-house development of the T-cup high pressure device originally designed by researchers at the Mineral Physics Institute at SUNY-SB (a node of the CHiPR STC). This modular system will also be transferable to brighter x-ray sources at NSLS and APS for studies of the smallest crystals (0.5 - 20 microns). A second system will alleviate demand for beam time at NSLS by the many postdoctoral, graduate and undergraduate students affiliated with the CHiPR STC who require XRD analyses on crystals ranging in sizes from 20-100 microns for which current laboratory x-ray sources and XRD detector systems are not adequate. Additional funds will be used to purchase a workstation and mass storage for analysis of the high resolution diffraction data and ancillary equipment needed to manufacture this integrated modular system. Specific examples of the cutting edge and funded research that will be enhanced or enabled by this equipment include, development of the next-generation, portable, large volume high pressure cell, determination of the strength and rheological properties of ceramics, textural analysis during ultrasonic experiments for determination of seismic velocities through high pressure phases, structural analyses of organic-inorganic open framework compounds, powder diffraction studies of doped-fullerenes, solid-state organic geochemistry, characterization of low temperature compounds formed during early diagenesis in marine sediments and bio- medical studies of photochemically formed natural compounds. ***