MICRODIFFRACTION FROM NANOFIBERS

本子项目是利用由NIH/NCRR资助的中心赠款提供的资源的众多研究子项目之一。子项目和研究者（PI）可能已经从另一个NIH来源获得了主要资金，因此可以在其他CRISP条目中表示。列出的机构是中心的，不一定是研究者的机构。静电纺纤维的直径在几百纳米到1微米之间。对于结晶聚合物PEO，我们想看看聚合物在纤维内部是如何排列的。这种小物体的散射将需要使用x射线毛细管的微聚焦光束和样品和探测器之间的He飞行路径。单个量子探测器应该为整个漫射光纤模式提供足够的q空间范围。这个实验与麦克西斯的一般微衍射发展相吻合。我们总共需要48小时，其中一天用于调焦设置，1天用于采集数据。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Electrospun fibers have diameters between a few hundred nanometers up to 1 micron. For the crystalline polymer PEO we would like to see how polymers are ordered inside the fiber. Scattering from such small objects will require a microfocused beam using x-ray capillaries and a He flightpath between sample and detector. A single quantum 4 detector should offer enough q-space range for the whole diffuse fiber pattern. The experiment fits in with the general microdiffraction developments at MacCHESS. We will need a total of 48 hours, one day for aligning the microfocusing setup, and 1 day for taking data.