BEAMLINE COMMISSIONING & DETECTOR CHARACTERIZATION

这个子项目是利用由NIH/NCRR资助的中心拨款提供的资源的许多研究子项目之一。子项目和调查员(PI)可能从另一个NIH来源获得了主要资金，因此可能会出现在其他CRISE条目中。列出的机构是针对中心的，而不一定是针对调查员的机构。我们执行了标准的光束线调试任务，以确保其性能：a)光束对准和转向以使光束沿光束线居中，b)使用校准的金属箔和EXAFS扫描来校准单色仪，c)单色仪1和2的性能测试(摇摆曲线，聚焦参数随能量和离源距离的函数，等等)，d)电离室测试(气体泄漏，线性度)，e)使用电离室或BPM作为输入信号来调整单色仪反馈系统。F)镜面调试程序(中心镜、作为样本距离函数的聚焦参数，以及g)在APS环关闭期间之后，每年三次遵循此程序进行测试和调试。当单色仪或反射镜在停机期间被修改或操纵时，将进行更详细的调试。

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. We performed the standard beamline commissioning tasks to ensure its performance: a) beam alignment and steering to center the beam along the beamline, b) monochromator calibration using calibrated metal foils and EXAFS scans, c) monochromator 1 and 2 performance testing (rocking curve, focusing parameter as a function of the energy and distance from the source, and so on), d) ion chamber testing ( gas leaks, linearity), e) Tunning of the monochromator feedback system using ion chamber or BPM as input signal. f) Mirror commissioning procedure (center mirror, focusing parameter as a function of the sample distance, and g) CCD testing and commissioning This procedure is followed three times a year after the shut down period of the APS ring. More detailed commissioning is done when the monochromators or the mirror have been modified or manipulated during the shut down.