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https://cse.umn.edu/charfac/hitachi-su8230-field-emission-gun Hitachi SU8230 Field Emission Gun | College of Science and Engineering Description:Hitachi SU 8230 is a Field Emission Gun Scanning Electron Microscope (FEGSEM) capable of 1.1 nm resolution at 1.5 mm working distance at 1.0 kV... college of sciencehitachifieldemissiongun