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...Introduction scanning electron microscope zeiss supra sem history instrumentation theory samples results different uses image capture elemental analysis mapping http www physics montana edu ical fesem html brief first was built by manfred von ardenne in germany sold commercially cambridge scientific instrument co iceland nmi the one we used https vonardenne biz en company gun sample stage under high vacuum camera detectors focus x ray detector nau cefns labs microprobe glg class notes interaction volume depth width of b distance penetrates r must be conductive preferably flat non porous powders etc prepared a bakelite casting polished if not conducting coated with gold imaging only cannot use liquids...