Used GATAN 691 #293620105 for sale

GATAN 691 is a specialized ion milling machine designed for use in high-resolution transmission electron microscopy (TEM) applications. This equipment comprises two main components: an ion source chamber and a motorized rotation stage. The ion source chamber houses an ion accelerator and a magnetron, which generate high-energy ion beams that are focused onto the specimen. The motorized rotation stage features a rotating mirror and a set of mechanical sample holders, which provide support and alignment for the specimen. 691 enables the user to mill high-resolution surfaces with precision and control. It can be set to perform various ion milling operations, such as cross-sectional milling, fine removal milling, modified modification and sequence leveling. Cross-sectional milling gives the operator the ability to cut through layers of different materials in order to analyze interface properties and micro-structures; fine removal milling allows for a smoother surface finish. Modified modification is especially useful for creating atomic force microscopy (AFM) specimens, as it can produce height and width profiles at the atomic scale. Sequence leveling offers the highest resolution of the three ion milling operations, resulting in the deepest penetration into the sample material. GATAN 691 system also features a range of safety features to protect the operator and the machine itself. The safety features include a vacuum pressure switch, an emergency stop switch, and cooling fan monitoring. Additionally, a number of indicators and alarms display important unit information and alert the operator to potential issues, such as abnormal current and voltage levels. With its superior quality, 691 is ideally suited for the study of nanostructure materials, specifically those materials which require high-resolution imaging. GATAN 691 can be used to analyze a broad range of samples, including metals, alloys, and other materials. The machine is suitable for other applications, such as producing TEM specimen grids. With its high-precision milling capabilities, 691 is an invaluable tool for any electron microscopist seeking to gain insight about nanostructures.