Undulator Beam Line Instrumentation for Real-Time X-ray Studies

该波束线将在密歇根/ at&t合作接入小组（mat - cat）的支持下，在先进光子源（APS）上进行开发、测量和操作。APS代表了未来材料研究的重要一步：第一次有可能在真实动态条件下对材料进行时间分辨研究。MATT-CAT被设想为一个实时x射线研究中心，它将作为一个大学-工业联合倡议，汇集密歇根大学的教师和学生，以及at &amp；T Bell实验室的研究人员，专注于材料的动力学行为。mat - cat的目标是建立一个致力于材料结构动力学的卓越中心，这将受益于物理学家，化学家，材料科学家和工程师的相互作用。为了实现这一目标，将开发两条完全仪器化的波束线，一条将具有波动源，另一条将具有弯曲磁铁。波束线的设计是为了实现高分辨率，它将由一个背反射单色仪组成，位于后舱，单色光束传输到前舱。在这里，目前正在开发的高分辨率分析仪和快速阵列探测器将用于时间分辨散射研究。该波束具有极高的亮度、准直性和稳定性，可用于固体和复杂流体中非水动力模式的新型相干光谱测量。这条波束线将有75-80%的时间可供mat - cat成员使用，其余时间分配给一般用户。技术人员将参与波束线的建造、仪器的日常操作和维护，并将协助用户。

This undulator beamline will be developed, instrumentated, and operated at the Advanced Photon Source (APS) under the auspices of the Michigan/AT&T Collaborative Access Team (MATT-CAT). The APS represents a very significant step forward for the future of materials research: for the first time it will be possible to carry out time-resolved studies of materials under real dynamic conditions. MATT-CAT is conceived as a center for real-time x-ray studies which will operate as a joint university-industry initiative bringing together faculty and students at the University of Michigan, and research staff at AT&T Bell Laboratories, to focus on the kinetic behavior of materials. MATT-CAT's goal is to establish a center of excellence devoted to the structural kinetics of materials which will benefit from the interaction of physicists, chemists, materials scientists and engineers. To accommodate this goal, two fully instrumented beam lines will be developed, one will have an undulator source, and the other a bending magnet. The undulator beam line is designed to achieve high resolution and will consist of a back-reflection monochromator, situated in the rear hutch, with the monochromated beam transported to a forward hutch. Here, high-resolution analyzers and fast array detectors currently under development will be available for time- resolved scattering studies. The extremely high brightness, collimation, and stability of the undulator beam will be exploited for new kinds of coherent spectroscopic measurements of non-hydrodynamic modes in solids and complex fluids. This beam line will be available to the MATT-CAT members 75-80% of the time, with the remaining time allocated to general users. Technical staff will be employed in the construction of the beam lines, the day-to-day operation and upkeep of the instruments, and will assist users.