The Hitachi SU3500 is a conventional tungsten emitter Scanning Electron Microscope. It is a variable pressure (VP) SEM capable of both high and low vacuum modes of operation. It is fitted with two electron detectors (ET-Secondary and Backscatter for both Low Vacuum and High Vacuum) with a very flexible and user-friendly stage arrangement that holds multiple specimens.It is also fitted with an Oxford Xmax SDD EDS detector for elemental analysis and x-ray mapping.