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.***

9975694Ade 该奖项将为采购组件提供部分支持，以建造扫描透射 X 射线显微镜 (STXM) 设施，专用于先进光源 (ALS) 的聚合物科学和工程项目。 该设施将成为优化弯曲磁体束线的唯一终端站。 它将使聚合物应用的仪器时间增加至少 4 倍。 至少 25% 的仪器时间将通过 ALS 管理的同行评审竞赛提供给合格的独立研究人员。 ALS 已同意花费大量资源（550,000 美元）来提供同步加速器光束线/单色仪。 光束线光学设计已经完成。 已经开发出一种新颖的设计，其中扫描波带片而不是样本来形成图像。 固定样品由于精细扫描要求所施加的限制最小，将更容易促进样品的加热、冷却、旋转和拉伸。 将实施干涉编码，这将提高光谱模式下可实现的稳定性和空间分辨率，并将改善在不同能量下获取的图像的配准。 将添加更高效的探测器、索引样本阶段、在线数据分析以及新颖的高阶抑制器作为新功能。 总之，这些方面将使聚合物-STXM 比现有仪器更加强大且用户友好。与弯曲磁铁耦合的“革命性”方法将显着降低波荡器及其光束线的必要投资，从约 4,000,000 美元减少到约 550,000 美元用于弯曲磁体束线。 由于各种第三代同步加速器设施中仍然有大量未使用的弯曲磁体源，因此在不需要新的同步加速器辐射源的情况下开发或建造额外的 STXM 的潜力显着提高。所有参与的学术机构都有来自许多来源的大量研究和教育项目支持。 作为独特而复杂的仪器，新的聚合物 STXM 设施将极大地丰富学生的教育。%%%该设施将显着推进聚合物科学与工程领域的发展，并培养新一代的科学家和工程师。射线显微镜技术。 全球范围内缺乏该领域的专业人才。***