Scanning Electron Microscope

The FEI Quanta 200 is a versatile high performance, low-vacuum scanning electron microscope with a tungsten electron source. It can be operated in three different vacuum modes, High Vacuum (HV), Low vacuum (LV) and Environmenal mode (ESEM), thus accommodating a wide range of samples of any SEM system. High vacuum or conventional mode may be used to examine dry conductive specimens. Low vacuum (0.1-1.0 Torr) mode may be used to examine dry specimens that are not inherently conductive and will not tolerate normal coating procedures. Environmental (1.0 – 20 Torr) or wet mode maintains humidity around the specimen whereby enabling examination of hydrated specimens. The Quanta 200 is also equipped with a Gatan Cryo transfer unit (ALTO2100). All images are acquired digitally.