Emergency repair to a 5-motion computer-controlled manipulator for ESCA lab 250

这项小型设备应用寻求对滑铁卢大学成像ESCA微探测器中关键部件的关键维修提供支持。Thermo VG Science ESCALab 250系统配备了多种技术(包括X射线和紫外光电子能谱、深度剖析、化学状态成像、扫描电子显微镜和俄歇电子显微镜)，是世界上最好的实验室成像ESCA仪器之一。滑铁卢机器也是加拿大唯一的ESCALab 250系统，是一种基于实验室的最先进的ESCA仪器，能够以高空间分辨率进行化学状态成像。这个成像ESCA系统自2000年以来一直在运行，一直在大量使用，为滑铁卢大学超过75个地方研究小组和来自加拿大其他大学的30个学术小组的研究需求提供服务。具体地说，所请求的支持将使我们能够更换2008年5月16日遭受灾难性故障的关键的5运动计算机控制机械手。如果没有工作机械手，用户将不可能(1)将样品从加载锁定室转移到分析室，(2)通过改变工作距离(z位置)来执行反磁瓶透镜的信号优化，以及(3)在计算机控制下获取样品特定位置(x，y位置)的数据，使得这台250万美元的仪器完全无法使用。这次维修将使滑铁卢ESCALab系统恢复全面运行，并具有最先进的性能。对于滑铁卢的各种材料科学和工程研究项目的继续生存来说，所要求的修复是至关重要的。

This minor equipment application seeks the support for a critical repair to a vital component in the Imaging ESCA Microprobe at the University of Waterloo. Equipped with multiple techniques (including X-ray and ultraviolet photoelectron spectroscopy, depth profiling, chemical-state imaging, scanning electron microscopy, and Auger electron microscopy), the Thermo VG Scientific ESCALab 250 system represents one of the best laboratory-based imaging ESCA instruments in the world. The Waterloo machine is also the only ESCALab 250 system in Canada and is a state-of-the-art, laboratory-based ESCA instrument capable of chemical-state imaging at high spatial resolution. This imaging ESCA system has been in operation since 2000 and has been under heavy usage, serving the research needs of over 75 local research groups from the University of Waterloo and 30 academic groups from other Canadian universities. Specifically, the requested support will allow us to replace the crucial 5-motion computer-controlled manipulator that suffered a catastrophic failure on 16 May 2008. Without a working manipulator, it will not be possible for the user (1) to transfer the sample from the load-lock chamber into the analysis chamber, (2) to perform signal optimization of the inverse magnetic-bottled lens by varying the working distance (z-position), and (3) to acquire data at specific location (x,y position) of the sample under computer control, rendering this $2.5 M instrument quite unusable. This repair will bring the Waterloo ESCALab system back up to full operation, with its state-of-the-art performance. The requested repair is critically needed for the continued survival of the diverse materials science and engineering research programs at Waterloo.