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.***

9975694 Ade该奖项将提供部分支持，用于收购组件，以建立一个扫描透射X射线显微镜（STXM）设施，专门用于先进光源（ALS）的聚合物科学和工程项目。 该设施将是优化的弯曲磁铁束线的唯一终端站。 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者。 ALS已同意花费大量资源（55万美元）提供同步加速器光束线/单色器。 完成了光束线光学系统的设计。 一种新的设计，其中波带片，而不是样品扫描形成的图像已经开发。 一个固定的样品，具有最小的限制所施加的精细扫描的要求，将更容易促进加热，冷却，旋转和拉伸的样品。 将实施干涉编码，这将提高光谱模式中可实现的稳定性和空间分辨率，并将提高在不同能量下获得的图像的配准。 将增加更有效的检测器，以及索引样本阶段，在线数据分析，和一个新的高阶抑制器作为新的功能。 与弯曲磁体耦合的“革命性”方法将显著降低所需投资，从波荡器及其束线的约4，000，000美元降低到弯曲磁体束线的约550，000美元。 由于在各种第三代同步加速器设施中仍有大量未使用的弯磁源，因此在不需要新的同步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大量的研究和教育计划，这些计划得到了许多来源的支持。 作为一种独特而复杂的仪器，新的聚合物STXM设施将大大丰富学生的教育。%该设施将大大推进聚合物科学和工程领域，并培养新一代的科学家和工程师在X射线显微镜技术。 世界范围内缺乏这方面的专门人才。