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

这条波荡器光束线将在密歇根/AT&P；T协作接入团队(Matt-CAT)的主持下，在高级光子源(APS)开发、测量和操作。APS代表着材料研究的未来向前迈出了非常重要的一步：它将第一次有可能在真实的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，它将作为一项大学和行业联合倡议，将密歇根大学的教职员工和学生以及AT&amp；T Bell实验室的研究人员聚集在一起，专注于材料的动力学行为。Matt-CAT的目标是建立一个致力于材料结构动力学的卓越中心，该中心将受益于物理学家、化学家、材料科学家和工程师的互动。为了适应这一目标，将开发两条完全仪表化的光束线，一条将具有波动器源，另一条将具有弯曲磁铁。波荡器光束线旨在实现高分辨率，并将由位于后机架的后反射单色器组成，单色光束传输到前机架。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可用于时间分辨散射研究。波荡器光束的极高亮度、准直性和稳定性将被用于固体和复杂流体中非流体动力学模式的新型相干光谱测量。这条波束线将在75%-80%的时间内对Matt-CAT成员可用，其余时间分配给普通用户。技术人员将受雇于光束线的建造、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.