Used GATAN 691 #293608603 for sale

GATAN 691 is an ion milling equipment, an instrument used in the physical material preparation process of electron microscopy (EM). Its design is based on the use of ion beam bombardment as a reliable and reproducible technique to generate cross-sectional specimens with well-defined and uniform surface qualities. 691 is a highly efficient and versatile system, suitable for a variety of materials such as metals, glass, and ceramics. It is equipped with a high-performing vacuum-chamber, equipped with a tungsten ion source and a rotary anode. This feature combined with the low working voltages (20-60kV) allows for efficient and precise material removal with a low background erosion. The generated plasma inside the chamber helps to make uniform etching surfaces for a variety of materials. The unit is user-friendly with an intuitive graphical user interface, that provides access to several functions, such as selecting the etching rate and its specific parameters, or the exposure time and specimen support height. Additionally, GATAN 691 machine can be programmed to allow batch processing, with multiple exposure of the same samples. The tool also provides excellent beam stability and uniformity, which allows reproducible results without the need of manual i beam re-centering providing reproducible results. The rotating anode ensures continuous ion bombardment and efficient specimen preparation, while luminescent displays allow a direct monitoring of the evaporation process. 691 is both an efficient and reliable instrument in the physical material preparation steps prior to SEM acquisition. Its many operating abilities make it an essential tool in the field of the electron microscopy, as it is capable of producing high quality and reproducible specimens with suitable surface morphology.