Acquisition of Hardware for a Scanning Transmission X-ray Microscope Dedicated to Synthetic and Natural Polymer Research and Education

采购专用于合成和天然聚合物研究和教育的扫描透射 X 射线显微镜硬件

• 批准号: 9975694
• 负责人: Harald Ade
• 金额: $ 22.6万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9975694&HistoricalAwards=false
• 关键词: Acquisition; Hardware; Scanning; Transmission; ray

9975694AdeThis award will provide partial support for the acquisition of components to build a scanning transmission X-Ray microscope (STXM) facility dedicated to polymer science and engineering projects at the Advanced Light Source (ALS). This facility will be the sole endstation at an optimized bending magnet beamline. It will increase instrument time for polymer applications at least 4 fold. At least 25% of instrument time will be provided to qualified independent investigators through a peer reviewed competition administrated by the ALS. The ALS has agreed to spend considerable resources ($550,000) to provide the synchrotron beamline/monochromator. The beamline optics design has been completed. A novel design in which the zone plate rather than the sample is scanned to form the image has been developed. A stationary sample, with minimal constraints imposed by fine scan requirements, will more easily facilitate the heating, cooling, rotating and stretching of the samples. Interferometric encoding which will improve the stability and spatial resolution achievable in spectroscopic mode, and will improve the registration of images acquired at different energies will be implemented. More efficient detectors will be added, as well as an indexing sample stage, and on-line data analysis, and a novel higher-order-suppressor as new features. Together, these aspects will make the polymer-STXM significantly more capable and user-friendly than existing instruments.The "revolutionary" approach of coupling to a bending magnet will significantly lower the necessary investment from about $4,000,000 for the undulator and its beamline to about $550,000 for a bending magnet beamline. Since there are still plenty of unused bending magnet sources at various third generation synchrotron facilities, the potential for developing or constructing additional STXMs without the need for new synchrotron radiation sources improves dramatically.All participating academic institutions have substantial research and education programs supported from many sources. As a unique and complex piece of instrumentation, the new Polymer STXM facility will substantially enrich the education of students.%%%This facility will significantly advance the fields of polymer science and engineering, and train a new generation of scientists and engineers in x-ray microscopy techniques. There is a world-wide shortage of personnel with expertise in this field.***

9975694ADETHIS奖将为收购组件提供部分支持，以建立扫描传输X射线显微镜（STXM）设施，该设施专门用于高级光源（ALS）的聚合物科学和工程项目。 该设施将是在优化的弯曲磁铁梁线上的唯一端Z。 它将增加至少4倍的聚合物应用的仪器时间。 通过ALS管理的同行审查竞赛，至少将为合格的独立调查员提供仪器时间的至少25％。 ALS已同意花费大量资源（550,000美元），以提供同步光束线/单色器。 光束线光学设计已完成。 一种新型设计，其中扫描了区域板而不是样品以形成图像。 固定样品具有最小的限制因素，因此更容易促进样品的加热，冷却，旋转和拉伸。 将在光谱模式下可获得可实现的稳定性和空间分辨率的干涉编码，并将改善在不同能量下获得的图像的注册。 将添加更有效的检测器，以及索引样本阶段和在线数据分析，以及一种新型的高级抑制剂作为新功能。 这些方面总之将使聚合物-STXM明显比现有仪器更有能力和用户友好。与弯曲磁铁耦合的“革命性”方法将显着降低必要的投资，从弯曲磁铁束线上的距离及其光束线的约4,000,000美元到约550,000美元。 由于在各种第三代同步器设施中仍然有大量未使用的弯曲磁铁源，因此不需要新的同步辐射源开发或构建其他STXM的潜力会大大改善。所有参与学术机构都有许多来源的大量研究和教育计划。 作为一种独特而复杂的仪表，新的聚合物STXM设施将大大丰富学生的教育。%% %%该设施将大大推动聚合物科学和工程的领域，并在X射线显微镜技术中培训新一代的科学家和工程师。 在这个领域的全球人员缺乏专业知识的人员。***